Body Regions and Cavities and Terms of Orientation
The 2 major Cavities: Dorsal and Ventral cavity
1. Dorsal cavity: • consists of 2 main cavities
(1.) Cranial cavity: within the skull. It houses the brain
(2.) Vertebral canal: contains the spinal chord
Ventral Cavityconsists of thoracic cavity, and adominopelvic cavity
Thoracic cavity:
o separated from the lower abdominopelvic cavity by the diaphragm (a thin muscles)
o includes the heart and lungs
Ventral CavityAbdominopelvic cavity: o Separated into 2 parts
(1.) abdominal cavity: • includes the stomach, liver, spleen, gallbladder, kidney, and most of the small and large intestines. • Extends from the diaphragm to the top of the hip bones
(2.) pelvic cavity: includes the large intestine, urinary bladder, and the internal reproductive organs enclosed by the hip bones
Name:_____________
Date:____________
Label each area correctly, hint all are cavities accept #5 which is a muscle that separates the two cavities
Relative Position Terminology Terms that describe the location of one body part with respect to another.
Superior: means that the body part is above another part or is closer to the head Example: The Thoracic cavity is superior to the abdominopelvic cavity
Inferior: means that a body part is below another body part or is toward the feet Example: The neck is inferior to the head)
Anterior: (Ventral) means toward the front Example: the eyes are anterior to the brain)
Posterior: (Dorsal) means toward the backExample: the pharynx is posterior to the oral cavity
Sagittal plane
A lengthwise cut that divides the body into the left and right portions.
Median (midline): when the sagittal plane pass along the midline and divides the body into equal parts
The red plane is median plane and the blue is a sagittal plane
Transverse plane
A transverse plane (Also known as
horizontal) is a cut that divides the
body into inferior and superior
portions
Coronal plane
A Coronal plane is a section that divides the body into anterior and
posterior portions
Regions
• Cephalic
• Genital
• Pettelar
• Sternal
• Pectoral
• Umbilical
• Coxal
• Crural
• Tarsal
• Pedal
• Vertebral
• Dorsum
• Gluteal
• Femoral
15. Brachial
16. Cubital
17. Popliteal
18. Plantar
12
3
4
5
5
6
78910
Front
Back
11
12
1213
13
14
1516
1718