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Musculoskeletal Anatomy > Prac Exam 1 > Flashcards

Prac Exam 1 Flashcards

1
Q

Define a colles fracture.

A

radiolucent transverse fracture of the distal aspect of the radius

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2
Q

How does one obtain a colles fracture?

A

commonly due to a fall on a hyperextended/outstretched hand with a pronated forearm in dorsiflexion
scaphoid and lunate push against radius

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3
Q

Osteology of the forearm: what bone is more medial?

A

ulna

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4
Q

Osteology of the forearm: what bone has the olecranon and coronoid process?

A

ulna

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5
Q

What are the eight carpal bones? Proximal = lateral to medial then distal =medial to lateral

A

scaphoid, lunate, triquetrum, pisiform

hamate, capitate, trapezoid, trapezium

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6
Q

Injury to what nerve can occur with colles fracture?

A

an incomplete lesion of the median nerve can occur

sometimes lesions of the superficial branch of the radial nerve or compression of the ulnar nerve

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7
Q

What pulse can be affected with a colles fracture?

A

radial nerve pulse

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8
Q

Thumb movement and innervation: what muscle causes flexion?

A

flexor pollicis longus (IPJ)

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9
Q

Thumb movement and innervation: what muscle causes extension of the IPJ?

A

extensor pollicis longus (C7 and C8)

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10
Q

Thumb movement and innervation: what muscle causes extension of the MCPJ?

A

extensor pollicis brevis (C7 and C8)

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11
Q

Thumb movement and innervation: what muscle causes abduction?

A

abductor pollicis longus (C7 and C8)

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12
Q

Thumb movement and innervation: what muscle causes adduction?

A

adductor pollicis (C7 and C8)

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13
Q

DRAW THE BRACHIAL PLEXUS

A

good job

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14
Q

Nerve root: dorsal scapular nerve?

A

C5

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15
Q

Nerve root: suprascapular nerve?

A

C5 + C6

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16
Q

Nerve root: long thoracic nerve?

A

C5 + C6 + C7

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17
Q

Nerve root: radial nerve?

A

C5 + C6 + C7 + C8 + T1

18
Q

Nerve root: musculocutaneous nerve?

A

C5 + C6

19
Q

Nerve root: median nerve?

A

C6

20
Q

Nerve root: ulnar nerve?

A

C8 + T1

21
Q

What nerves arise from the roots?

A

dorsal scapular N and long thoracic

22
Q

What nerve arises from the trunk?

A

suprascapular

23
Q

Shoulder muscle motor movement + innervation: abduction?

A 
rotator cuff (SIT,S)
supraspinatus muscle, the infraspinatus muscle, teres minor muscle, and the subscapularis muscle.
24
Q

Shoulder muscle motor movement + innervation: adduction?

A

rhomboids

25
Q

Shoulder muscle motor movement + innervation: elevation/retraction?

A

trapezoids

26
Q

Forearm muscle motor movement + innervation: pronation?

A

pronator teres (median, C6)

27
Q

Forearm muscle motor movement + innervation: supination?

A 
pronator quadratus (anterior interosseous, C6
AND 
supinator (posterior interosseous, C6, 7, 8)
28
Q

Elbow muscle motor movement + innervation: flexion?

A

brachio-radialis (radial N, all nerve roots)

29
Q

Elbow muscle motor movement + innervation: extension?

A

anconeus (radial)

30
Q

Wrist muscle motor movement + innervation: flexion?

A

flexor carpi ulnaris (ulnar)
AND
flexor carpi radialis (radial)

31
Q

Wrist muscle motor movement + innervation: extension?

A 
extensor carpi ulnaris (posterior interosseous N, C6 + 7)
AND
extensor carpi radialis (radial)
AND
extensor carpi brevis (radial)
32
Q

Hand muscle motor movement + innervation: tighten palmar fascia?

A

palmaris longus (median)

33
Q

Hand muscle motor movement + innervation: extends index finger?

A

extensor indicis

34
Q

Hand muscle motor movement + innervation: extension of fingers?

A

extensor digitorum communis (posterior interosseous, C7 + 8)

35
Q

Hand muscle motor movement + innervation: “rolling up of fingers”?

A

flexor digitorum profundus (anterior interosseous nerve for lateral 2 and ulnar nerve for medial 2 fingers
AND
flexor digitorum superficialis (median N C7 + 8)

36
Q

What nerve is effected in the following palsy condition: wrist drop?

A

radial N (all nerve roots)

37
Q

What nerve is effected in the following palsy condition: winged scapula?

A

long thoracic (C5, 6, 7)

38
Q

What nerve is effected in the following palsy condition: atrophy of the thenar eminence?

A

median nerve (C6)

39
Q

What nerve is effected in the following palsy condition: carpal tunnel syndrome?

A

median nerve (C6)

40
Q

What nerve is effected in the following palsy condition: claw hand?

A

ulnar nerve (C6, 7)

Musculoskeletal Anatomy (1 decks)

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