Class Three Ap1 Muscles

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Text of Class Three Ap1 Muscles

  • 1. Muscles of the Head & Neck

2.

  • Muscles from Weeks One and Two

3. Supraspinatus

  • P:Supraspinous Fossa of the scapula
  • D:Greater tubercle of the humerus
  • 1.Abducts the arm at the shoulder joint
  • Part of the rotator cuff muscle group

4. Infraspinatus

  • P:Infraspinous fossa of the scapula
  • D:Greater tubercle of the humerus
  • 1.Laterally rotates the arm at the shoulder joint
  • Part of the rotaor cuff muscle group

5. Teres minor

  • P:Superior lateral border of the scapula
  • D:Greater tubercle of the humerus
  • 1.Laterally rotates the arm at the shoulder joint
  • Part of the rotator cuff muscle group

6. Subscapularis

  • P:Subscapular fossa of the scapula
  • D:Lesser tubercle of the humerus
  • 1.Medially rotates the arm at the shoulder joint
  • Part of the rotator cuff muscle group

7. Teres Major

  • P:Inferior lateral border of the scapula
  • D:Medial lip of the bicipital groove of the humerus
  • 1.Medially rotates the arm at the shoulder joint
  • 2.Adducts the arm at the shoulder joint
  • 3.Extends the arm at the shoulder joint

8. Deltoid

  • P:Lateral clavicle, acromion process, and the spine of the scapula
  • D:Deltoid tuberosity of the humerus
  • 1.Abducts the arm at the shoulder joint (entire muscle)
  • 2.Flexes the arm at the shoulder joint (anterior deltoid)
  • 3.Extends the arm at the shoulder joint (posterior deltoid)
  • 4.Medially rotates the arm at the shoulder joint (anterior deltoid)
  • 5.Laterally rotates the arm at the shoulder joint (posterior deltoid)

9. Coracobrachialis

  • P:Coracoid process of the scapula
  • D:Medial shaft of the humerus
  • Flexes the arm at the shoulder joint
  • Adducts the arm at the shoulder joint

10. Biceps Brachii

  • P:Long head:Supraglenoid tubercle of the scapula
  • Short head:Coracoid process of the scapula
  • D:Radial tuberosity
  • Flexes the forearm at the elbow joint (entire muscle)
  • Supinates the forearm at the radioulnar joints (entire muscle)
  • Flexes the arm at the shoulder joint (entire muscle)

11. Brachialis

  • P:Distal of the anterior shaft of the humerus
  • D:Ulnar tuberosity
  • 1.Flexes the forearm at the elbow joint

12. Triceps Brachii

  • P:Long head:Infraglenoid tubercle of the scapula
  • Lateral head:Posterior shaft of the humerus
  • Medial head:Posterior shaft of the humerus
  • D:Olecranon process of the ulna
  • 1.Extends the forearm at the elbow joint

13. Pronator Teres Muscle

  • P:Humeral head:Medial epicondyle of the humerus via common flexor tendon
  • Unlnar head:Coronoid process of ulna
  • D:Laterla radius
  • Pronates the forearm at the radioulnar joint
  • Flexes the forearm at the elbow joint

14. Flexor Carpi Radialis

  • P:Medial epicondyle of the humerus
  • D:Radial hand on the anterior side
  • Flexes the hand at the wrist joint
  • Radially deviates (abducts) the hand at the wrist joint

15. Palmaris Longus

  • P:Medial epicondyle of the humerus
  • D:Palm of hand
  • 1.Flexes the hand at the wrist joint

16. Flexor Carpi Ulnaris

  • P:Medial epicondyle of the humerus
  • D:Ulnar hand on the anterior side
  • Flexes the hand at the wrist joint
  • Ulnar deviates(adducts) the hand at the wrist joint

17. Brachioradialis

  • P:Lateral supracondylar ridge of the humerus
  • D:Styloid process of the radius
  • 1.Flexes the forearm at the elbow joint

18. Flexor Digitorum Superficialis

  • Flexes fingers 2-5 at the metacarpophalangeal and proximal interphalangeal joints
  • Flexes the hand at the wrist

19. Pronator Quadratus

  • P:Anterior distal ulna
  • D:Anterior distal radius
  • 1.Pronates the forearm at the radioulnar joints

20. Flexor digitorum profundus

  • Flexes fingers 2-5 at the metacarpophalangeal and proximal and distal interphalangeal joints
  • Flexes the hand at the wrist

21. Extensor Carpi Radialis Longus

  • P:Lateral supracondylar ridge of the humerus
  • D:Radial hand on the posterior side
  • Extends the hand at the wrist joint
  • Radially deviates (abducts) the hand at the wrist joint

22. Extensor Carpi Radialis Brevis

  • P:Lateral epicondyle of the humerus
  • D:Radial hand on the posterior side
  • Extends the hand at the wrist joint
  • Radially deviates (abducts) the hand at the wrist joint

23. Extensor Digitorum

  • Extends fingers 2-5 at the metacarpophalangealand proximal and distal interphalangeal joints
  • Extends the hand at the wrist joint

24. Extensor Digiti Minimi

  • Extends the Little Finger at the Metacarpophalangeal and Proximal and Distal Interphalangeal Joints
  • Extends the hand at the wrist joint

25. Extensor Carpi Ulnaris

  • P:Lateral epicondyle of the humerus and the ulna
  • D:Ulnar hand on the posterior side
  • Extends the hand at the wrist joint
  • Ulnar deviates (adducts) the hand at the wrist joint

26. Supinator

  • P:Lateral epicondyle of the
  • humerus and proximal ulna
  • D:Proximal radius
  • 1.Supinates the forearm at the radioulnar joints

27. WEEK THREE

  • Muscles of the Head and Neck

28. Temporalis Muscle

  • P:Temporal fossa
  • D:Coronoid process and the ramus of the mandible
  • 1.Elevates the mandible at the temporomandibular joint

29. 30. 31. 32.

  • Very painful cramp when the temporalis muscle goes into spasm

33. Masseter

  • P:Inferior margins of both the zygomatic bone and the zygomatic arch of the temporal bone
  • D:Angle, ramus, and coronoid process of the mandible
  • 1.Elevates the mandible at the temporomandibular joint

34. 35. 36. Lateral Pterygoid

  • Protracts the mandible at the temporomandibular joint

37. Medial Pterygoid

  • Elevates the mandible at the temporomandibular joint

38. Trapezius muscle

  • P:Occiput, nuchal ligament, and SPs of C7-T12
  • D:Lateral clavicle, acromion process, and spine of scapula
  • Laterally flexes the neck and the head at the spinal joints (upper)
  • Extends the neck and the head at the spinal joints (upper)
  • Contralaterally rotates the neck and the head at the spinaljoints (upper)
  • Elevates the scapula at the scapulocostal joint (upper)
  • Retracts (adducts) the scapula at the scapulocostal joint (entire muscle)
  • Depresses the scapula at the scapulocostal joint (lower)

39. 40. 41. 42. Splenius Capitis

  • P:Nuchal ligament and SPs of C7-T4
  • D:Mastoid process of the temporal bone and the occipital bone
  • Extends the head and the neck at the spinal joints
  • Laterally flexes the head and the neck at the spinal joints
  • Ipsilaterlly rotates the head and the neck at the spinal joints

43. Splenius Capitis:Nuchal ligament and SPs of C7-T4 44. Splenius Capitis:Mastoid process of the temporal bone and occipital bone 45. Splenius Cervicis

  • Extends theneck at the spinal joints
  • Laterally flexes the neck at the spinal joints
  • Ipsilaterally rotates the neck at the spinal joints

46. 47. Levator scapulae

  • P:TPs of C1-C4
  • D:Medial border of the scapula, from the superior angle to the root of the spine of the scapula
  • Elevates the scapula at the scapulocostal joint
  • Extends the neck at the spinal joints
  • Laterally flexes the neck at the spinal joints

48. Levator Scapulae:TPs of C1 C4 49. 50. 51. Platysma

  • P:Subcutaneous fascia of the superior chest
  • D:Mandible and the subcutaneous fascia of the lower face
  • 1.Draws up the skin of the superior chest and neck, creating ridges of skin of the neck

52. 53. 54. 55. Sternocleidomastoid

  • P:Sternal head:Manubrium of the sternum
  • Clavicul