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MSK test 2 > lec 7 > Flashcards

lec 7 Flashcards

1
Q

compartments of anterior/ flexor arm

A

biceps
coracobrachialis
brachial

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2
Q

compartments of posterior/ extensor arm

A

triceps

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3
Q

what separates the anterior and posterior arm

A

medial and lateral intermuscular septae

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4
Q

nerve for posterior/ extensor arm

A

radial

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5
Q

nerve for anterior/flexor arm

A

musculocutaneous

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6
Q

biceps
-origin
-insertion
-function

A

long head: supraglenoid tubercle of scap
short head: coracoid process of scap

insert: radial tuberosity and fascia of forearm via bicipital aponeurosis

function
1. flex arm (long head)
2. flex forearm
3. supinate forearm

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7
Q

coracobrachialis
-origin
-insertion
-function

A

coracoid process of scap

middle thirst of medial surface of humerus

  1. flex arm
  2. adduct arm (horizontal adduct)
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8
Q

brachialis
-origin
-insertion
-function

A

distal half of anterior humerus

ulnar tuberosity and coronoid process of ulna

  1. flex forearm
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9
Q

triceps
-origin
-insertion
-function

A

long head: infraglenoid tubercle
lateral head: humerus
medial head: humerus

ins: olecranon process of ulna

  1. extend forearm
  2. extend arm (long head only)
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10
Q

anterior/flexor/pronator of forearm

A

superficial layer
-pronator teres
-flexor carpi radialis
-palmaris longus
-flexor carpi ulnaris

intermediate layer
-flexor digitorum superficialis

deep layer
-flexor digitorum profundua
-flexor pollicis longus
-pronantor quadrates

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11
Q

posterior/extensor/supinator of forearm

A

superficial
-brachioradialis
-extensor carpi radialis longus
-extensor carpi radialis brevis
-extensor digitorum
-extensor digiti minimi
-extensor carpi ulnaris
-anconeous

deep
-supinator
-abductor pollicis longus
-extensor pollicis longus
-extensor pollicis brevis
-extensor indicis

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12
Q

anterior/flexor/pronator of forearm nerve

A

median (except flexor carpi ulnaris is ulnar and flexor digitorum profundus medial 1/2 is ulnar)

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13
Q

posterior/extensor/supinator of forearm nerve

A

radial nerve

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14
Q

which 2 muscles of anterior/flexor/pronator of forearm aren’t innervated by medial nerve

A

flexor carpi ulnaris
flexor digitorum profundus (medial 1/2 is ulnar, lateral 1/2 is median)

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15
Q

which flexor of the forearm is in the posterior forearm and what’s it innervated by

A

brachioradialis and radial nerve (like the extensors_

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16
Q

anterior/flexor/pronator of forearm where do they mostly Arise from and via what tendon

A

medial epicondyle via common flexor tendon

17
Q

posterior/extensor/supinator of forearm where do they mostly Arise from and via what tendon

A

lateral epicondyle via common extensor tendon

18
Q

flexion with supinator

flexion with pronation

flexion in midpronation

–> which muscles and nerves

A
  1. biceps (musc.)
  2. brachialis (musc.)
  3. brachioradialis (radial)
19
Q

retinaculum

A

extensor retinaculum –> synovial sheaths

flexor retinaculum –> carpal tunnel

20
Q

carpal tunnel

nerve an tendons and carpal bones

A

via flexor retinaculum
-median nerve

-SLTP, TTCH (NOT S AND L)

-flexor digitorum superficialis
-flexor digitorum profundua
-flexor pollicis longus

-

21
Q

pronator teres
-origin
-insertion
-function
-syndrome

A

-humeral head: medial epicondyle of humerus
-ulnar head: coronoid process of ulna

-radius

  1. pronate forearm
  2. weak flex forearm

=pronator syndrome= pinch median nerve been 2 heads

22
Q

flexor carpi radialis
-origin
-insertion
-function
-note

A

medial epicondyle humerus

base of 2 and third metacarpal

  1. flex hand
  2. flex forearm
  3. abduct hand (radial deviate)

–> radial artery pulse

23
Q

palmaris longus
-origin
-insertion
-function

A

medial epicondyle of humerus

palmar aponeurosis and flexor retinaculum

  1. flex hand
  2. felt forearm
24
Q

flexor carpi ulnaris
-origin
-insertion
-function
-fact

A

humeral head: medial epicondyle
ulnar head: olecranon process of ulna

base of 5th metacarpal, hook of hamate, pisiform

  1. flex hand
  2. flex forearm
  3. adduct hand (ulnar deviate)

–> innervated by ulnar nerve

25
Q

flexor digitorum superficialis
-origin
-insertion
-function
-fact

A

organ: humero-ulnar head: medial epicondyle of humerus and corondoif process of ulna
radial head: radius

ins: base of middle phalanges 2-5

  1. flex finger 2-5 at MCP and PIP
  2. flex hand
  3. flex foream

-part of carpal tunnel

26
Q

flexor digitorum profundus
-origin
-insertion
-function
-fact

A

-ulna and interosseous membrane

base of distal phalanges 2-5

  1. flex fingers 2-5 at MCP DIP and PIP
  2. flex hands

-part of carpal tunnel

-median nerve for radial 1/2 of muscle
-ulnar nerve for ulnar 1/2 of muscle

27
Q

flexor pollicis longus
-origin
-insertion
-function
-fact

A

-radius and interosseous membrane

base of distal phalanx of thumb

  1. flex thumb at CMC MCP and IP
  2. flex hand

-part of carpal tunnel

28
Q

pronator quadratus
-origin
-insertion
-function

A

ulna

radius

  1. pronate forearm

MSK test 2 (6 decks)

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