Muscles (A&P Lab Final)

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Author:
meli237
ID:
186299
Filename:
Muscles (A&P Lab Final)
Updated:
2012-11-30 17:04:02
Tags:
Muscles origin insertion action
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Description:
A&P Lab Final
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  1. Rectus Abdominis
    • Origin: pubis
    • Insertion: ribs 5-7, xiphoid process
    • Action: stab. abs, flex vert
  2. External obliques
    • Origin: ribs
    • Insertion: linea alba
    • Action: Stablizes abs, flex and rotate vert column
  3. Internal obliques
    • Origin: lumbar fascia, ilium (crest)
    • Insertion: linea alba
    • Action: stab. abs, flex and rotate vert column
  4. Transversus abdominis
    • Origin: lumbar fascia, ilium (crest), ribs
    • Insertion: linea alba, pubis
    • Action: compresses abs
  5. External intercostals
    • Origin: inferior part of superior ribs
    • Insertion: superior part of inferior rib
    • Action: pulls together ribs to elevate
  6. Internal intercostals
    • Origin: superior part of inferior rib
    • Insertion: inferior part of superior rib
    • Action: pulls ribs together to depress
  7. Semispinalis
    • Origin: transverse process of c7-t12
    • Insertion: occipital bone of skull, spinous process of c1-t4
    • Action: extend and rotate head and vert column
  8. Splenius
    • Origin: nucal ligament, spinous process of c7-t6
    • Insertion: mastoid process, occipital, transverse process oc c2-c4
    • Action: extend rotate and tilt head
  9. Quadratus lumborum
    • Origin: ilium and lumbar fascia
    • Insertion: rib 12 and lumbar vert (transverse process)
    • Action: flexes vert column, maintains posture
  10. Iliocostalis (cervis, thoracis, lumborum)
    • Origin: ilium (crest), ribs 3-12
    • Insertion: ribs, trasverse process c4-c6
    • action: extend rotate and laterally flex vert column
  11. Longissimus (capitis, cervisis, thoracis)
    • Origin: transverse process of c5-L5
    • Insertion: mastoid process of skull, ribs, transverse process of c2-t12
    • Action: extend rotate and laterally flex vert column
  12. Spinalis
    • Origin: spinous process of t10-L3
    • Insertion: spinous process of c2-t7
    • action: extend, rotate and laterally flex cert column
  13. Multifidus
    • Origin: transverse process of vert
    • Insertion: spinous process of next 2-4 cranial vert from origin
    • Action: maintain posture
  14. Rotatores
    • Origin: transverse process of vert
    • Insertion: lamina of next cranial vert
    • Action: maintain posture
  15. Intertranversarius
    • Origin: transverse process of vert
    • Insertion: transverse process of next cranial vert from origin
    • Action: flexes vert colum laterally
  16. Interpsinales
    • Insertion: spinous process of vertebrae
    • Origin: spinous process of next cranial vert from origin
    • Action: extends vert column
  17. Trapezius
    • Origin: occipital, nuchal ligament, c2-t12
    • insertion: scapula (acromion and spine) and clavicle
    • ACtion: extend head, adduct and elevate and depress
  18. Latissimus dorsi
    • Origin: spinous process of t6-L5
    • Insertion: humerus (intertubercular groove)
    • Action: extends arm, medially rotates and adducts
  19. Teres major
    • Origin: scapula (inferior)
    • Insertion: humerus (intertuberclar groove)
    • Action: extends arm, medially rotates and adducts
  20. Teres minor
    • Origin: scapula (lateral)
    • Insertion: humerus: greater tubercle
    • Action: laterally roates humerus, stab. shoulder
  21. Infraspinatus
    • Origin: scapula (infraspinous fossa)
    • Insertion: humerus (greater tubercle)
    • Action: laterally rotates humerus, stab. shoulder
  22. supraspinatus
    • Origin: scapula (supraspinous fossa)
    • Insertion: humerus (greater tubercle)
    • Action: abducts humerus, stabilizes shoulder
  23. subscapularis
    • Origin: scapula (subscapular fossa)
    • Insertion: humerus (lesser tubercle)
    • Action: rotates humerus medially, stabilizes shoulder
  24. Levator scapulae
    • Origin: transverse processes of c1-c4
    • Insertion: scapula (medially)
    • Action: elevates and adducts scapula, flex neck laterally
  25. rhomboid major and minor
    • Origin: spinous process of c2-t5
    • Insertion: scapula (medial)
    • Action: retracts scapula
  26. subclavius
    • Origin: 1st rib
    • Insertion: clavicle
    • Action: depress clavicle
  27. Coracobrachialis
    • Origin: scapula (coracoid process)
    • Insertion: humerus (shaft)
    • Action: flex and adduct arm
  28. triceps brachii made up of
    long head, lateral head, medial head
  29. triceps brachii long head
    • Origin: scapula (glenoid rim)
    • Insertion: ulna (olecranon process)
    • Action: forearm extensor
  30. Triceps brachii lateral head
    • origin: humerus (posterior)
    • insertion: ulna (olecranon process)
    • Action: forearm extensor
  31. Triceps brachii medial head
    • origin: humerus (posteriodistal)
    • Insertion: ulna (olectranon process)
    • Action: forearm extensor
  32. Anconeus
    • origin: humerus (lateral epicondyle)
    • insertion: ulna (olecranon process)
    • action: forearm extensor
  33. Biceps brachii short head
    • Origin: scapula (coracoid process)
    • Insertion: radius (radial tuberosity)
    • Action: forearm flexion and supination
  34. biceps brachii long head
    • Origin: glenoid cavity
    • Insertion: radius (radial tuberosity)
    • Action: forearm flexion and supination
  35. Brachioradialis
    • Origin: humerus (distolateral)
    • Insertion: radius (styloid process)
    • action: forearm flexion
  36. Brachialis
    • origin: humerus (anteriodistal)
    • insertion: ulna (coronoid process)
    • action: forearm flexion
  37. pronator teres
    • origin: humerus (med. epicondyle) and ulna (coronoid process)
    • insertion: radius (midshaft)
    • Action: pronates forearm
  38. flexor carpi radialis
    • origin: humerus (medial epicondyle)
    • Insertion: metacarpals II and III
    • ACtion: wrist flexion, abducts hand
  39. Palmaris longus
    • Origin: humerus (medial epicondyle)
    • Insertion: palm
    • Action: weak wrist flexion
  40. flexor carpi ulnaris
    • Origin: humerus (medial epicondyle) and ulna (coronoid process)
    • Insertion: metacarpal V and carpals
    • Action: flexes wrist, adducts hand
  41. flexor digitorum superficialis
    • origin: humerus (medial epicondyle), ulna (coronoid process), radius (shaft)
    • Insertion: middle phalanges II-V
    • Action: flexes wrist and fingers

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