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MSK-1 > Upper Extremity Myology > Flashcards

Upper Extremity Myology Flashcards

1
Q

What innervates the deltoid muscle?

A

axillary N.

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2
Q

What nerve innervates the triceps brachii m and anconeus m?

A

radial N.

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3
Q

What is in the triangular space?

A

Circumflex A. and V.

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4
Q

What muscles does the recurrent branch of the median N innervate?

A

ABductor Pollicis Brevis M.
Superficial head of flexor Pollicis Brevis M.
Opponens Pollicis M.
All are Thenar Muscles!!!

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5
Q

What nerves innervate subscapularis m.?

A

Upper and lower subscapular N.

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6
Q

What is the action of supraspinatus?

A

abducts humerus

holds humeral head in glenoid cavity

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7
Q

Where is the origin of serratus anterior?

A

ribs 1-8

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8
Q

What muscles does the deep radial nerve innervate of the forearm extensors?

A

extensor carpi radialis brevis

supinator m.

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9
Q

What nerve innervates serratus anterior m.?

A

long thoracic N.

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10
Q

What nerve innervates the biceps brachii, coracobrachialis, and brachialis muscles?

A

musculocutaneous n.

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11
Q

What muscles does the radial nerve innervate?

A

brachioradioalis m

extensor carpi radialis longus m

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12
Q

What are the superficial flexors of the forearm? (4)

A

pronator teres M.
Flexor carpi Radialis M.
Palmaris Longus M.
Flexor Carpi Ulnaris M.

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13
Q

Where does the deltoid insert?

A

deltoid tuberosity of humerus

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14
Q

Where does supraspinatus M. insert?

A

greater tubercle of humerus

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15
Q

What nerve innervates the medial part of the flexor digitorum profundus M.?

A

ulnar N.

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16
Q

What nerve innervates flexor carpi ulnaris M.?

A

ulnar N.

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17
Q

What are the deep flexors of the forearm? (3)

A

flexor digitorum profundus m.
flexor pollicis longus m.
pronator quadratus M.

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18
Q

What nerve innervates supraspinatus M.?

A

suprascapular N.

19
Q

Where does the long head of the biceps brachii

m originate?

A

supraglenoid tubercle of the scapula

20
Q

Where does subscapularis M insert?

A

Lesser tubercle of humerus

21
Q

Where does teres minor insert?

A

greater tubercle of humerus

22
Q

What is in the triangular interval?

A

Radial N.

Deep Brachial A.

23
Q

Where does the short head of the biceps brachii m originate?

A

coracoid process of the scapula

24
Q

What muscles does the posterior interosseous nerve innervate? (7) double dipped cherries and peanuts preferably included

A 
(extensors)
extensor digitorum m
extensor digiti minimi m
extensor carpi ulnaris
abductor pollicis longus
extensor pollicis brevis
extensor pollicis longus
extensor Indicis
25
Q

What nerve innervates infraspinatus M.?

A

Suprascapular N.

26
Q

What nerve innervates pectoralis minor M.?

A

medial pectoral N.

27
Q

What are the hypothenar muscles?

A

One For All
Opponens digiti minimi m.
Flexor digiti minimi Brevis M.
ABductor digiti minimi M.

28
Q

What is in the quadrangular space?

A

axillary N.

posterior humeral circumflex A.

29
Q

What nerve innervates teres minor M?

A

axillary N.

30
Q

What nerve innervates Teres major M?

A

lower subscapular N.

31
Q

Where does infraspinatus insert?

A

greater tubercle of humerus

32
Q

What nerve innervates pronator teres m, flexor carpi radialis m, and palmaris longus m?

A

median N.

33
Q

What are the rotator cuff muscles?

A 
SITS:
supraspinatus
infraspinatus
teres minor
subscapularis
34
Q

Where does teres major insert?

A

front of humerus

35
Q

What muscles does the deep ulnar nerve innervate?

A 
All hypothenar muscles (OFA)
Thenar ms:
Deep head of flexor pollicis brevis
ADductor pollicis m.
3rd and 4th lumbricals
dorsal and palmar interossei M.
36
Q

What is subscapularis M’s action

A

ADducts humerus

medially rotates humerus

37
Q

What is the intermediate layer of flexors of the forearm?

A

Flexor digitorum superficialis M.

38
Q

What is the insertion of serratus anterior m?

A

deep surface of medial border of the scapula

39
Q

What are the thenar muscles?

A 
All For One And
Abductor pollicis brevis M.
Flexor pollicis brevis M.
Opponens pollicis M.
Adductor pollicis m.
40
Q

What nerve(s) innervate pectoralis major M.?

A

medial and lateral pectoral nerves

41
Q

What muscles does the anterior interosseous N. innervate?

A

pronator quadratus M.
flexor pollicis longus M.
lateral part of the flexor digitorum profundus m.

42
Q

What is the nerve that innervates the flexor digitorum superficialis M.?

A

Median N.

43
Q

What are the intermediate hand muscles?

A

1st and second lumbricals
3rd and 4th lumbricals
dorsal interossei
palmar interossei

44
Q

What nerve innervates the 1st and second lumbricals?

A

Medial nerve

MSK-1 (28 decks)

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