25
1. The branch of medicine that deals with correction of disorders of the musculoskeletal system is called A) Rheumatics B) Podiatry C) Orthopedics D) Cardiology E) Dermatology 2. How many named bones are found in the adult human skeleton? A) 200 B) 206 C) 212 D) 227 E) 250 3. Which of the following statements is NOT true? A) The axial skeleton has 80 bones. B) The appendicular skeleton has 126 bones. C) The axial skeleton is composed of the bones that run through the axis of the body. D) Children have more bones than adults. E) The appendicular skeleton does not include the pelvic and pectoral girdles. 4. Which of the following bones is NOT part of the axial skeleton? A) Hyoid B) Ribs C) Vertebrae D) Carpals E) Sternum 5. Which of the following bones is part of the axial skeleton? A) Tarsals B) Tibia C) Sphenoid D) Scapula E) Clavicle 6. Briefly describe the five categories of bones found in the human body based on the shape of the bones. 7. Which of the following types of bone is the femur? A) Long bone B) Short bone C) Flat bone D) Irregular bone E) Sesamoid bone 8. Which following types of bone is the occipital bone? A) Long bone B) Short bone C) Flat bone D) Irregular bone E) Sesamoid bone 9. Which following types of bones comprise the ankles and wrists? A) Long bone B) Sutural bone C) Irregular bone D) Sesamoid bone E) Short bone 10. Which of the following is NOT true of surface markings on bone? A) They allow the passage of nerves and blood vessels. B) They provide sites of attachment for muscles. C) They allow bones to shorten or lengthen. D) They help form joints. E) They can be depressions or projections. 11. An opening or hole in a bone through which blood vessels, nerves and ligaments pass is called a A) fissure. B) foramen. C) fossa. D) meatus. E) sulcus. 12. A rounded articular projection supported on a constricted portion (neck) of a bone is called a A) foramen. B) condyle. C) tuberosity. D) head. E) trochanter. 13. A prominent ridge or elongated projection on a bone is called a A) crest. B) trochanter. C) sulcus. D) fossa. E) tubercle. 14. The tube-like passageway found in the temporal bone that allows sound waves to reach the eardrum is an example of which of the following bone surface markings? A) fissure. B) foramen. C) fossa. D) meatus. E) sulcus. Page 1

Qb Axial Skeleton

  • Upload
    jack

  • View
    159

  • Download
    3

Embed Size (px)

DESCRIPTION

principles anatomy physiology t0rt0raTEST PRACTICE

Citation preview

Page 1: Qb Axial Skeleton

1. The branch of medicine that deals with correction of disorders of the musculoskeletal system is called A) Rheumatics B) Podiatry C) Orthopedics D) Cardiology E) Dermatology

2. How many named bones are found in the adult human skeleton? A) 200 B) 206 C) 212 D) 227 E) 250

3. Which of the following statements is NOT true? A) The axial skeleton has 80 bones. B) The appendicular skeleton has 126 bones. C) The axial skeleton is composed of the bones that run through the axis of the body. D) Children have more bones than adults. E) The appendicular skeleton does not include the pelvic and pectoral girdles.

4. Which of the following bones is NOT part of the axial skeleton? A) Hyoid B) Ribs C) Vertebrae D) Carpals E) Sternum

5. Which of the following bones is part of the axial skeleton? A) Tarsals B) Tibia C) Sphenoid D) Scapula E) Clavicle

6. Briefly describe the five categories of bones found in the human body based on the shape of the bones.

7. Which of the following types of bone is the femur? A) Long bone B) Short bone C) Flat bone D) Irregular bone E) Sesamoid bone

8. Which following types of bone is the occipital bone? A) Long bone B) Short bone C) Flat bone D) Irregular bone E) Sesamoid bone

9. Which following types of bones comprise the ankles and wrists? A) Long bone B) Sutural bone C) Irregular bone D) Sesamoid bone E) Short bone

10. Which of the following is NOT true of surface markings on bone? A) They allow the passage of nerves and blood vessels. B) They provide sites of attachment for muscles. C) They allow bones to shorten or lengthen. D) They help form joints. E) They can be depressions or projections.

11. An opening or hole in a bone through which blood vessels, nerves and ligaments pass is called a A) fissure. B) foramen. C) fossa. D) meatus. E) sulcus.

12. A rounded articular projection supported on a constricted portion (neck) of a bone is called a A) foramen. B) condyle. C) tuberosity. D) head. E) trochanter.

13. A prominent ridge or elongated projection on a bone is called a A) crest. B) trochanter. C) sulcus. D) fossa. E) tubercle.

14. The tube-like passageway found in the temporal bone that allows sound waves to reach the eardrum is an example of which of the following bone surface markings? A) fissure. B) foramen. C) fossa. D) meatus. E) sulcus.

Page 1

Page 2: Qb Axial Skeleton

15. Bones in the following area protect the brain. A) Cranium B) Vertebral column C) Sacrum D) Face E) Ribcage

16. Which of the following cranial bones are paired bones in the human skull? A) temporal B) parietal C) sphenoid D) ethmoid E) more than one selection is correct

17. Which of following facial bones is a single (unpaired) bone in the human skull? A) maxilla B) nasal C) lacrimal D) mandible E) zygomatic

18. Which of the following is NOT a facial bone? A) Parietal B) Nasal C) Maxillae D) Zygomatic E) Palatine

19. Which of the following statements is NOT true with regard to bones of the skull? A) Some skull bones are covered with a mucous membrane. B) The only movable bone in the skull is the mandible. C) The bones of the skull contain foramina but no fissures. D) The facial bones provide support for the entrance of the digestive system. E) Some bones of the skull contain sinus cavities.

20. Which of the following bones is NOT visible from the anterior view of the skull? A) Parietal B) Frontal C) Mandible D) Occipital E) Maxilla

21. These cranial bones form the inferior lateral aspects of the cranium and part of the cranial floor. A) Frontal B) Temporal C) Parietal D) Occipital E) Nasal

22. These cranial bones contain the organs of hearing and balance, and articulate with the mandible. A) Frontal B) Temporal C) Parietal D) Occipital E) Nasal

23. The mastoid process A) is a rounded projection of the parietal bones. B) is the point of attachment for several neck muscles. C) is anterior to the external auditory meatus. D) is both is a rounded projection of the parietal bones and the point of attachment for several neck muscles. E) All of these answer choices are correct.

24. These projections found on both sides of the foramen magnum articulate with depressions on the first cervical vertebrae. A) Mastoid processes B) Mandibular condyles C) Foramen magnum D) Occipital condyles E) Sella turcica

25. Which cranial bone is called the “keystone” of the cranial floor because it articulates with every other cranial bone? A) Occipital B) Frontal C) Ethmoid D) Nasal E) Sphenoid

26. This cranial bone is anterior to the sphenoid and posterior to the nasal bones. It contains foramina for the olfactory cranial nerve. A) Ethmoid B) Frontal C) Palatine D) Maxilla E) Temporal

27. This facial bone articulates with teeth. A) Lacrimal B) Palatine C) Vomer D) Maxillae E) Nasal

28. Which of the following is NOT a facial bone? A) Vomer B) Palatine C) Lacrimal D) Occipital E) Mandible

Page 2

Page 3: Qb Axial Skeleton

29. Briefly describe the bones that make up the orbit of the eye. Include a description of the portion of the orbit formed by each bone.

30. Briefly describe the location of the four most prominent sutures of the skull including the articulating bones.

31. Briefly describe the function of the fontanels.

32. Briefly describe the function of the paranasal sinuses.

33. Briefly describe the six fontanels of the infant skull including their location, shape and time of closure.

34. Which bone of the axial skeleton does NOT articulate with any other bone? A) Vertebrae B) Ethmoid C) Sternum D) Hyoid E) Ilium

35. The hyoid bone is suspended by ligaments and muscle that extend from the _______ of the temporal bone. A) mastoid process B) styloid process C) occipital condyle D) zygomatic process E) superior nuchal line

36. Joe was found dead. His hyoid bone was broken. What was the most likely cause of death? A) Natural causes B) Cardiac arrest C) Gun shot D) Strangulation E) Choking

37. List and describe the number of bones found in all the regions of the adult vertebral column.

38. Ribs that have costal cartilage that attaches directly to the sternum are called A) floating ribs. B) vertebrochondral ribs. C) false ribs. D) true ribs. E) separated ribs.

39. The tubercle found on the neck of a rib articulates with a facet found on the A) spinous process of a thoracic vertebra. B) spinous process of a lumbar vertebra. C) transverse process of a thoracic vertebra. D) xiphoid process of the sternum. E) manubrium of the sternum.

40. What is the purpose of the nucleus pulposus region of intervertebral discs? A) To compress the vertebral bones B) To help absorb vertical shock to the spinal column C) Calcium storage D) Spinal fluid reservoir E) Muscle attachment

41. The two primary curves of the adult vertebral column are the A) thoracic and sacral curves. B) lumbar and sacral curves. C) cervical and lumbar curves. D) cervical and thoracic curves. E) cervical and sacral curves.

42. The primary function of the transverse and spinal processes of vertebrae is A) attachment site for muscles. B) calcium storage. C) to support the body of the vertebrae. D) to hold the hyoid in place. E) to create a passageway for the spinal cord

43. What bone marking found on the second cervical vertebra projects superiorly into the anterior portion of the vertebral foramen of the atlas? A) Primary projection B) Occular process C) Odontoid process D) Cervical projection E) Cervix

Page 3

Page 4: Qb Axial Skeleton

44. Which of the vertebrae listed below would be the largest and strongest vertebra in adult humans? A) C5 B) L4 C) T4 D) C7 E) T12

45. The inferior articular processes of the fifth sacral vertebrae that are found on either side of the sacral hiatus are called A) sacral cornua. B) coccygeal cornua. C) lateral sacral crests. D) anterior sacral foramina. E) median sacral crests.

46. Which gender shows the coccyx pointed inferiorly? A) Females B) Males C) Both genders D) The coccyx does not point inferiorly in either gender

47. The junction between the manubrium and the body of the sternum forms the A) suprasternal notch. B) xiphoid process. C) sternal angle. D) sternoclavicular joint. E) mandibular joint.

48. What is inflammation of one or more costal cartilage called? A) Costochondritis B) Arthritis C) Cartilaginous distension D) Otitis E) Intercostal space distension

49. In the diagram, which bone is the flat bone? A) A B) B C) C D) D E) E

50. In the diagram, which bone is the short bone? A) A B) B C) C D) D E) E

Page 4

Page 5: Qb Axial Skeleton

51. In the diagram, where is the ethmoid bone? A) A B) B C) C D) D E) E

52. In the diagram, where is the lacrimal bone? A) E B) F C) G D) H E) I

53. In the diagram, which bone forms the greater portion of the sides and roof of the cranial cavity? A) A B) B C) C D) D E) G

54. In the diagram, which bone articulates with every other bone of the face except the mandible? A) F B) G C) H D) I E) J

55. In the diagram, where is the zygomatic bone? A) G B) H C) I D) J E) None of these answer choices are correct.

56. In the diagram, where is the temporal bone? A) A B) B C) C D) G E) None of the selections are correct

57. In the diagram, where is the vomer? A) D B) E C) F D) I E) J

Page 5

Page 6: Qb Axial Skeleton

58. In the diagram, which bone includes the foramen magnum? A) B B) C C) D D) F E) G

59. In the diagram, which bone is considered the keystone of the cranial floor? A) E B) B C) G D) H E) I

60. In the diagram, where is the ethmoid bone? A) J B) K C) G D) H E) I

61. In the diagram, where is the styloid process? A) J B) K C) G D) H E) I

62. In the diagram, where is the mastoid process? A) J B) K C) G D) H E) I

Page 6

Page 7: Qb Axial Skeleton

63. In the diagram, where is the pterygoid process? A) A B) B C) C D) D E) E

64. In the diagram, where is the palatine bone? A) A B) B C) C D) D E) E

65. In the diagram, where is the nasal bone? A) A B) B C) C D) D E) E

Page 7

Page 8: Qb Axial Skeleton

66. In the diagram, where is the mastoid process? A) A B) B C) C D) D E) G

67. In the diagram, where is the superior nuchal line? A) A B) E C) F D) H E) I

68. In the diagram, where is the foramen magnum? A) C B) D C) G D) H E) I

69. In the diagram, where is the inferior nuchal line? A) B B) E C) F D) G E) I

Page 8

Page 9: Qb Axial Skeleton

70. In the diagram, where is the crista galli? A) A B) B C) C D) D E) None of these answer choices are correct.

71. In the diagram, where is the mandibular fossa? A) B B) C C) D D) E E) F

72. In the diagram, where is the foramen ovale? A) C B) D C) E D) F E) G

Page 9

Page 10: Qb Axial Skeleton

73. In the diagram, where is the foramen spinosum? A) A B) B C) C D) G E) H

74. In the diagram, where is the cribriform plate? A) D B) E C) F D) G E) H

75. In the diagram, where is the foramen rotundum? A) A B) B C) C D) E E) F

76. In the diagram, where is the olfactory foramina? A) C B) D C) E D) F E) G

Page 10

Page 11: Qb Axial Skeleton

77. In the diagram, where is the crista galli? A) C B) A C) E D) F E) G

78. In the diagram, where is the vomer bone? A) A B) B C) F D) D E) E

79. In the diagram, where is the perpendicular plate? A) A B) B C) C D) F E) D

80. Where is the mental foramen in the diagram? A) C B) D C) E D) F E) None of these answer choices are correct.

81. Where is the mandibular notch in the diagram? A) A B) B C) E D) F E) None of these answer choices are correct.

Page 11

Page 12: Qb Axial Skeleton

82. Where is the coronoid process in the diagram? A) A B) B C) E D) F E) None of these answer choices are correct.

83. This fontanel usually closes within 18 to 24 months after birth. A) A B) B C) C D) D E) Both A and C

84. This fontanel usually closes about two months after birth. A) A B) B C) C D) D E) None of these answer choices are correct.

85. This is largest fontanel in size at birth. A) A B) B C) C D) D E) Both A and D

86. These fontanels begin closing within the first month or two after birth but do not completely close until close to one year after birth. A) A B) B C) C D) D E) All of these answer choices are correct.

Page 12

Page 13: Qb Axial Skeleton

87. Where is the inferior articular process in the diagram? A) C B) D C) E D) F E) None of these answer choices are correct.

88. In the diagram, where is lamina of the vertebral arch? A) A B) B C) C D) D E) F

89. Where is the spinous process in the diagram? A) B B) C C) D D) E E) F

Page 13

Page 14: Qb Axial Skeleton

90. Which of the cervical vertebrae contain a unique process that is responsible for the ability to move your head from side to side signifying “no”? A) A B) B C) C D) D E) E

91. Which of the cervical vertebrae are responsible for permitting the movement of the head seen when saying “yes”? A) A B) B C) C D) D E) E

Page 14

Page 15: Qb Axial Skeleton

92. Where is the superior vertebral notch? A) A B) B C) F D) G E) K

93. Where is the facet for articular part of the tubercle of the rib? A) B B) C C) D D) H E) I

94. Where is the pedicle? A) B B) H C) I D) K E) D

95. Where is the superior facet? A) A B) B C) F D) G E) E

96. Where is the vertebral body? A) C B) D C) H D) I E) J

Page 15

Page 16: Qb Axial Skeleton

97. In the diagram, which part is often broken during CPR due to incorrect positioning of hands? A) A B) B C) C D) D E) E

98. Where is the clavicular notch? A) A B) C C) D D) B E) F

99. Where is the sternal angle? A) A B) C C) D D) E E) F

Page 16

Page 17: Qb Axial Skeleton

100. Which of the following structures passes through the opening labeled 1 in the diagram? A) internal carotid artery B) mental nerve C) cranial nerve XI (accessory) D) branch of the occipital artery E) cranial nerve VII (facial)

101. Which of the following structures passes through the opening labeled 2 in the diagram? A) internal carotid artery B) mental nerve C) cranial nerve XI (accessory) D) branch of the occipital artery E) cranial nerve VII (facial)

102. Which of the following structures passes through the opening labeled 3 in the diagram? A) internal carotid artery B) mental nerve C) cranial nerve XI (accessory) D) branch of the occipital artery to dura mater E) cranial nerve VII (facial)

103. Which of the following structures passes through the opening labeled 4 in the diagram? A) internal carotid artery B) mental nerve C) cranial nerve XI (accessory nerve) D) branch of the occipital artery E) cranial nerve VII (facial nerve)

Page 17

Page 18: Qb Axial Skeleton

104. Which of the following structures passes through the opening labeled 1 in the diagram? A) cranial nerve XII (hypoglossal nerve) B) internal jugular vein C) branch of ascending pharyngeal artery D) mandibular branch of cranial nerve V (trigeminal nerve) E) maxillary branch of cranial nerve V (trigeminal nerve)

105. Which of the following structures passes through the opening labeled 2 in the diagram? A) cranial nerve XII (hypoglossal nerve) B) internal jugular vein C) branch of ascending pharyngeal artery D) mandibular branch of cranial nerve V (trigeminal nerve) E) maxillary branch of cranial nerve V (trigeminal nerve)

106. Which of the following structures passes through the opening labeled 3 in the diagram? A) cranial nerve XII (hypoglossal nerve) B) internal jugular vein C) branch of ascending pharyngeal artery D) mandibular branch of cranial nerve V (trigeminal nerve) E) maxillary branch of cranial nerve V (trigeminal nerve)

107. Which of the following structures passes through the opening labeled 4 in the diagram? A) cranial nerve XII (hypoglossal nerve) B) internal jugular vein C) branch of ascending pharyngeal artery D) mandibular branch of cranial nerve V (trigeminal nerve) E) maxillary branch of cranial nerve V (trigeminal nerve)

108. Which of the following structures passes through the opening labeled 5 in the diagram? A) cranial nerve XII (hypoglossal nerve) B) internal jugular vein C) branch of ascending pharyngeal artery D) mandibular branch of cranial nerve V (trigeminal nerve) E) maxillary branch of cranial nerve V (trigeminal nerve)

Page 18

Page 19: Qb Axial Skeleton

109. Which of the following structures passes through the opening labeled 1 in the diagram? A) supraorbital nerve B) cranial nerve II (optic nerve) C) infraorbital nerve D) cranial nerve I (olfactory nerve) E) inferior alveolar nerve

110. Which of the following structures passes through the opening labeled 2 in the diagram? A) supraorbital nerve B) cranial nerve II (optic nerve) C) infraorbital nerve D) cranial nerve I (olfactory nerve) E) inferior alveolar nerve

111. Which of the following structures passes through the opening labeled 3 in the diagram? A) supraorbital nerve B) cranial nerve II (optic nerve) C) infraorbital nerve D) cranial nerve I (olfactory nerve) E) inferior alveolar nerve

Page 19

Page 20: Qb Axial Skeleton

112. This fontanel usually begins to close 1–2 months after birth, but closure is generally not complete until 12 months: A) A B) B C) C D) D E) E

113. Name the structure labeled A in the diagram. A) posterolateral fontanel B) posterior fontanel C) anterior fontanel D) anterolateral fontanel E) frontal bone

114. Name the structure labeled B in the diagram A) posterolateral fontanel B) posterior fontanel C) anterior fontanel D) anterolateral fontanel E) occipital bone

115. Name the structure labeled C in the diagram A) posterolateral fontanel B) posterior fontanel C) anterior fontanel D) anterolateral fontanel E) occipital bone

116. Name the structure labeled D in the diagram A) posterolateral fontanel B) posterior fontanel C) anterior fontanel D) anterolateral fontanel E) frontal bone

Page 20

Page 21: Qb Axial Skeleton

117. Which bone in the diagram articulates superiorly with the apex of the sacrum? A) A B) B C) C D) D E) E

118. Which structure in the diagram allows for passage of nerves and blood vessels? A) B B) C C) D D) E E) F

119. Which structure in the diagram is the apex of the sacrum? A) B B) C C) D D) E E) F

120. Which structure in the diagram is the sacral ala? A) B B) C C) D D) E E) F

121. Which structure in the diagram is the superior articular process? A) A B) B C) C D) D E) E

122. Which condition is characterized by an increase or exaggeration of the lumbar curve of the vertebral column? A) herniated disc B) scoliosis C) kyphosis D) lordosis E) spina bifida

123. Which condition is characterized by an increase in the thoracic curve of the vertebral column? A) herniated disc B) scoliosis C) kyphosis D) lordosis E) spina bifida

124. Which condition is characterized by a lateral bending of the vertebral column in the thoracic region? A) herniated disc B) scoliosis C) kyphosis D) lordosis E) spina bifida

Page 21

Page 22: Qb Axial Skeleton

125. Which condition is the protrusion of the nucleus pulposus posteriorly or into one of the adjacent vertebral bodies in the vertebral column? A) herniated disc B) scoliosis C) kyphosis D) lordosis E) spina bifida

126. Which of the following bones contains a sac that collects tears and passes them into the nasal cavity? A) Maxilla B) Sphenoid C) Nasal D) Ethmoid E) Lacrimal

127. The union of these two bones forms the zygomatic arch. A) temporal and zygomatic B) sphenoid and maxilla C) temporal and mandible D) temporal and frontal E) temporal and parietal

128. What are the three correct components of the nasal septum? A) inferior nasal concha, vomer and lacrimal bone B) vomer, superior nasal concha, and septal cartilage C) inferior nasal concha, septal cartilage, perpendicular plate of ethmoid D) vomer, septal cartilage, and perpendicular plate of ethmoid E) vomer, septal cartilage, and crista galli of ethmoid

129. Sella turcica is a bony depression found in this cranial bone. A) sphenoid B) Frontal C) Temporal D) Ethmoid E) Occipital

130. The pituitary gland is contained in a depression found in this cranial bone. A) Ethmoid B) Sphenoid C) Lacrimal D) Temporal E) Parietal

131. Briefly discuss the main structural features of the temporal bones.

Page 22

Page 23: Qb Axial Skeleton

Answer Key

1. C2. B3. E4. D5. C6. The human body contains five types of bones based on shape. Long bones have greater length than width and consist of a shaft and a variable number of extremities. Short bones are somewhat cube-shaped because they are nearly equal in length and width. Flat bones are generally thin and composed of two nearly parallel plates of compact bones tissue enclosing a layer of spongy bone tissue. Irregular bones have complex shapes and cannot be grouped into any of the previous categories. Sesamoid bones develop in certain tendons where there is considerable friction, tension and physical stress and are shaped similarly to a sesame seed.

7. A8. C9. E10. C11. B12. D13. A14. D15. A16. E17. D18. A19. C20. D21. B22. B23. B24. D25. E26. A27. D28. D29. Parts of the frontal and sphenoid bones comprise the roof of the orbit. Parts of the zygomatic and sphenoid bones

form the lateral wall of the orbit. Parts of the maxilla, zygomatic and palatine bones make up the floor of the orbit. Parts of the maxilla, lacrimal, ethmoid, and sphenoid bones form the medial wall of the orbit.

30. The coronal suture unites the frontal bone and both parietal bones. The sagittal suture unites the two parietal bones on the superior midline of the skull. The lambdoid suture unites the two parietal bones to the occipital bone. The squamous sutures unite the parietal and temporal bones on the lateral aspects of the skull.

31. The fontanels are important in allowing flexibility during childbirth and allow brain growth after birth.32. The sinuses lighten the skull and contain a mucous membrane lining that helps moisten and clean inspired air.

The sinus also aid in enhancing the quality of the voice by acting as resonating chambers33. The unpaired anterior fontanel is located at the midline between the two parietal bones and the frontal bone. It is

roughly diamond shaped and is the largest fontanel. It usually closes 18–24 months after birth. The unpaired posterior fontanel is located at the midline between the two parietal bones and the occipital bone. It is smaller than the anterior fontanel and closes about 2 months after birth. The paired anterolateral fontanels are located laterally between the frontal, parietal, temporal and sphenoid bones and are smaller in shape. They close about 3 months after birth. The paired posterolateral fontanels are located laterally between the parietal, occipital and temporal bones and are irregularly shaped. They begin to close 1 to 2 months after birth, but closure is not complete until 12 months.

34. D35. B36. D37. There are seven cervical vertebrae in the neck region. There are twelve thoracic vertebrae posterior to the thoracic

cavity. The five lumbar vertebrae support the lower back. There is one sacrum consisting of five fused sacral vertebrae. There is one coccyx (tail bone) consisting of four fused coccygeal vertebrae.

38. D39. C40. B

Page 23

Page 24: Qb Axial Skeleton

41. E42. A43. C44. B45. A46. A47. C48. A49. C50. B51. D52. A53. B54. D55. B56. E57. C58. B59. A60. C61. B62. A63. C64. E65. D66. B67. B68. C69. C70. E71. C72. A73. C74. C75. A76. C77. B78. C79. B80. A81. B82. D83. A84. B85. A86. C87. D88. B89. C90. B91. A92. C93. B94. C95. D96. C97. B98. B99. C100. E101. C

Page 24

Page 25: Qb Axial Skeleton

102. D103. A104. E105. D106. A107. B108. C109. A110. C111. B112. C113. C114. B115. A116. D117. B118. C119. B120. E121. A122. D123. C124. B125. A126. E127. A128. D129. A130. B131. Temporal bones form the inferior lateral aspects of the cranium and part of the cranial floor. Each temporal bone

articulates with sphenoid, parietal, occipital and zygomatic bone via zygomatic arch. They articulate with the mandible to form the temporomandibular joint (TMJ). Two major processes on the temporal are called the mastoid process and styloid process, which both act as sites of muscle attachment. The temporal bone houses the external auditory meatus (the ear canal). The petrous portion of the temporal bone houses the internal ear and the middle ear. It also contains the carotid and jugular foramen.

Page 25