Complete list of M, A, I and BS

Question 1

Trapezius M.

Answer 1

A: Elevate, retract and rotate scapula. Lower fibers depress scapula.
N: CN XI
BS: Transverse cervical A.

Question 2

Latissimus dorsi M.

Answer 2

A: Extends, ADducts and medially rotates humerus.
N: Thoracodorsal N.
BS: Thoracodorsal A.

Question 3

Rhomboid major & minor Ms.

Answer 3

A: Retracts scapular, rotates GC inferiorly, and fixes scapula to thoracic wall.
N: Dorsal scapular N.
BS: Dorsal scapular A.

Question 4

Levator scapulae M.

Answer 4

A: Elevate scapula.
N: Dorsal scapular N.
BS: Dorsal scapular A.

Question 5

Serratus posterior superior M.

Answer 5

A: Aids in forced inspiration.
N: Intercostal N.
BS: Posterior intercostal A.

Question 6

Serratus posterior inferior M.

Answer 6

A: Aids in forced expiration.
N: Anterior rami
BS: Posterior intercostal A.

Question 7

Splenius capitis M.

Answer 7

A: BL extend head. UL sidebend and rotates face to same side.
N: Posterior rami
BS: Occipital A.

Question 8

Splenius cervicis M.

Answer 8

A: BL extend neck. UL side bend and rotate neck to same side.
N: Posterior rami
BS: Occipital A.

Question 9

Obliquus capitis inferior M.

Answer 9

A: Rotates atlas to turn face to same side.
N: Suboccipital N.
BS: Vertebral A.

Question 10

Obliquus capitis superior M.

Answer 10

A: Extend and sidebend head.
N: Suboccipital N.
BS: Vertebral A.

Question 11

Rectus capitis posterior minor M.

Answer 11

A: Extend head.
N: Suboccipital N.
BS: Vertebral A.

Question 12

Rectus capitis major M.

Answer 12

A: Extend and rotate head to same side.
N: Suboccipital N.
BS: Vertebral A.

Question 13

Erector spinae group

Answer 13

Iliocostalis Ms., Longissimus Ms., Spinalis Ms.
A: Extend and sidebend the vertebral column.
N: Posterior rami
BS:
In cervical portions - Occipital A., Vertebral A., and Deep cervical A.
In thoracic portions - Posterior intercostal A., Subcostal A., Lumbar A.
In sacral portions - Lateral sacral A.

Question 14

Deltoid M.

Answer 14

A: ABducts, flexes, extends and medially rotates the arm.
N: Axillary N.
BS: Posterior circumflex humeral A.

Question 15

Supraspinatus M.

Answer 15

A: ABduct the humerus.
N: Suprascapular N.
BS: Suprascapular A.

Question 16

Infraspinatus M.

Answer 16

A: Laterally rotate humerus.
N: Suprascapular N.
BS: Suprascapular A.

Question 17

Subscapularis M.

Answer 17

A: Medially rotate and ADduct the arm.
N: Upper and Lower subscapular Ns.
BS: Subscapular A.

Question 18

Teres minor M.

Answer 18

A: Laterally rotate humerus.
N: Axillary N.
BS: Circumflex scapular A.

Question 19

Teres major M.

Answer 19

A: ADduct and medially rotate arm.
N: Lower subscapular N.
BS: Circumflex scapular A.

Question 20

Pectoralis major M.

Answer 20

A: Flexes, ADducts and medially rotates the humerus.
N: Lateral and Medial pectoral Ns.
BS: Pectoral branch of the Thoracromial trunk

Question 21

Pectoralis minor M.

Answer 21

A: Protracts, depresses and protects scapula.
N: Medial pectoral N.
BS: Pectoral branch of the Thoracromial trunk

Question 22

Subclavius M.

Answer 22

A: Positions and depresses clavicle.
N: N. to Subclavius M.
BS: Clavicular branch of the Thoracromial trunk

Question 23

Serratus anterior M.

Answer 23

A: Protracts and stabilized scapula. Rotates GC inferiorly.
N: Long thoracic N.
BS: Lateral thoracic A.

Question 24

Biceps brachii M.

Answer 24

A: Flexes and supinates forearm.
N: Musculocutaneous N.
BS: Brachial A.

Question 25

Coracobrachialis M.

Answer 25

A: Flex and ADduct the humerus. N: Musculocutaneous N. BS: Brachial A.

Question 26

Brachialis M.

Answer 26

A: Flexes forearm. N: Musculocutaneous N. BS: Radial recurrent A.

Question 27

Triceps brachii M.

Answer 27

A: Extends forearm. N: Radial N. BS: Deep brachial A.

Question 28

Anconeus M.

Answer 28

A: Assists Triceps. N: Radial N. BS: Deep brachial A.

Question 29

Pronator teres M.

Answer 29

A: Pronation. N: Median N. BS: Anterior ulnar recurrent A.

Question 30

Flexor carpi radialis M.

Answer 30

A: Flexes and ABducts hand at the wrist. N: Median N. BS: Radial A.

Question 31

Palmaris longus M.

Answer 31

A: Flexes hand at the wrist. N: Median N. BS: Posterior ulnar recurrent A.

Question 32

Flexor carpi ulnaris M.

Answer 32

A: Flexes and ADducts hand at the wrist. N: Ulnar N. BS: Ulnar A.

Question 33

Flexor digitorum superficialis M.

Answer 33

A: Flex at the metacarpophalangeal joints of digits I-IV. N: Median N. BS: Ulnar and Radial As.

Question 34

Flexor digitorum profundus M.

Answer 34

A: Flexes at the distal phalangeal joints. N: Ulnar N. BS: Anterior interosseous A.

Question 35

Flexor pollicis longus M.

Answer 35

A: Flex the thumb. N: Anterior interosseous N. BS: Anterior interosseous A.

Question 36

Pronator quadratus M.

Answer 36

A: Pronation. N: Anterior interosseous N. BS: Anterior interosseous A.

Question 37

Brachioradialis M.

Answer 37

A: Mild flexion of forearm (best when forearm is midpronated). N: Radial N. BS: Radial recurrent A.

Question 38

Extensor carpi radialis longus M.

Answer 38

A: Extend and ABduct hand at the wrist. N: Radial N. BS: Radial A.

Question 39

Extensor carpi radialis brevis M.

Answer 39

A: Extend and ABduct hand at the wrist. N: Deep radial N. BS: Radial A.

Question 40

Extensor digitorum M.

Answer 40

A: Extend digits I-IV. N: Posterior interosseous N. BS: Posterior interosseous A.

Question 41

Extensor digiti minimi M.

Answer 41

A: Extends digit V. N: Posterior interosseous N. BS: Posterior interosseous A.

Question 42

Extensor carpi ulnaris M.

Answer 42

A: Extends and ADducts hand at the wrist. N: Posterior interosseous N. BS: Posterior interosseous A.

Question 43

Supinator M.

Answer 43

A: Supination. N: Deep radial N. BS: Posterior interosseous A.

Question 44

ABductor pollicis longus M.

Answer 44

A: ABducts the thumb. N: Posterior interosseous A. BS: Posterior interosseous N.

Question 45

Extensor pollicis brevis M.

Answer 45

A: Extends proximal phalanx of thumb. N: Posterior interosseous N. BS: Posterior interosseous A.

Question 46

Extensor pollicis longus M.

Answer 46

A: Extends distal phalanx of thumb. N: Posterior interossous N. BS: Posterior interosseous A.

Question 47

Extensor indicis M.

Answer 47

A: Extend index finger. N: Posterior interosseous N. BS: Posterior interosseous A.

Question 48

1st and 2nd Lumbrical Ms.

Answer 48

A: Extend digits at interphalangeal joints. Flex metacarpophalangeal joints. N: Median N. BS: Superficial and deep palmar arches

Question 49

Opponens pollicis M.

Answer 49

A: Oppose thumb. N: Median N. BS: Superficial palmar arch

Question 50

ABductor pollicis brevis M.

Answer 50

A: ABducts thumb. N: Median N. BS: Superficial palmar arch

Question 51

Flexor pollicis brevis M.

Answer 51

A: Flexes proximal phalanx of thumb. N: Median N. BS: Superficial palmar arch

Question 52

3rd and 4th Lumbrical Ms.

Answer 52

A: Extend digits at interphalangeal joints. Flex metacarpophalangeal joints. N: Deep ulnar N. BS: Superficial and deep palmar arches

Question 53

Oppenens digiti minimi M.

Answer 53

A: Oppose digit V. N: Deep ulnar N. BS: Deep palmar arch

Question 54

ADductor pollicis M.

Answer 54

A: ADduct thumb. N: Deep ulnar N. BS: Deep palmar arch

Question 55

Flexor digiti minimi brevis M.

Answer 55

A: Flex digit V at proximal phalanx. N: Deep ulnar N. BS: Deep palmar arch

Question 56

Dorsal interossei Ms. (DABs)

Answer 56

A: ABducts digits. Flex digits at all finger joints. N: Deep ulnar N. BS: Deep palmar arch

Question 57

Palmar interossei Ms.

Answer 57

A: ADducts digits. Flex digits at all finger joints. N: Deep ulnar N. BS: Deep palmar arch