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MSK > Dissection 10 > Flashcards

Dissection 10 Flashcards

1
Q

What nerve supplies the anterior compartment of the arm?

A

musculocutaneous

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2
Q

What are the 3 muscles in the anterior compartment of the arm?

A

biceps brachii; coracobrachialis; brachialis

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3
Q

What are the proximal attachments of biceps brachii?

A

supraglenoid tubercle of the scapula via the long head and the coracoid process of th scapula via the short head

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4
Q

What 3 muscles attach to the coracoid process?

A

pectoralis minor; coracobrachialis and short head of biceps

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5
Q

how does the tedon of the long head of biceps brachii reach the supraglenoid tubercel of the scapula?

A

passes superiorly in the intertubercular groove of the humerus and then becomes enclosed within the fibrous layer of the shoulder joint capsule to then reach the tubercle

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6
Q

What are the distal attachments of biceps brachii?

A

biceps tendon which attaches to the radial tuberosity and the bicipital aponeurosis which blends with the deep fascia on the medial side of the proximal forearm

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7
Q

What is the name for the depp fasica on the medial side of hte proximal forearm?

A

antebrachial

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8
Q

What spinal nerve roots is the musculocutaneous nerve dervied from?

A

C5 and C6

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9
Q

What is the proximal attacment for coracbrcahialis?

A

coracoid process of the scapula

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10
Q

What is the distal attachment for coracobrachialis?

A

middle third of medial surface of humerus

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11
Q

Where is coracobrachialis found in relation to the other muscles of the anterior compartmnet of the arm?

A

deep to biceps brachiii and medial to brachialais

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12
Q

What seperates coracobrachialis from the triceps muscle/

A

medial intermuscular septae

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13
Q

What is the proximal attachment for the brachialis muscle?

A

distal half of anterior surface of humerus

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14
Q

What is the distla attachment for the brachialis muscle?

A

coronoid process and tuberosity of ulna

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15
Q

What separates brachialis from the triceps muscle??

A

lateral intermuscular septae

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16
Q

What is the relation of the brachialis muscle to the otehr muslces in the anterior compartment of the arm?

A

deep to biceps brachii and lateral coracobrachialis

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17
Q

What are the muscles of the anterior comaprtment of the forearm mainly suppleid by?

A

median nerve

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18
Q

What muscles in the anterior compartment of the forearm arent supplied by the median nerve?

A

flexor carpi ulnaris and the medial part (to digits 4 and 5) of flexor digitorum profundis

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19
Q

What nerve supplies the part of hte anterior forearm not supplied by the median nerve?

A

ulnar nerve

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20
Q

what is the proximal atttachment of the superficial layer of the anterior forearm?

A

common flexor tendon to the medial epicondyle of the humerus

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21
Q

What are the muscles of the superficial layer of the anterior forearm?

A

pronator teres; palmaris longus; flexor carpi radialis; flexor carpi ulnaris

22
Q

What is the distal attachment of pronator teres?

A

middle of convexity of lateral surface of radius

23
Q

What is the distal attachement of palmaris longus?

A

palmar aponeurosis

24
Q

What is the distal attachment of flexor carpi radialis?

A

metacrapals on the radial side

25
Q

what is the distal attachment for the flexor carpi ulnaris

A

metacarpals on the ulnar side

26
Q

What are the proximal attachments ofr the intermediate compartment of the anterior forearm?

A

distal humerus; cornoid process of ulna and radial head

27
Q

what is the distal attachment for the intermediate compartment of the forearm?

A

bodies of middle phalanges of medial 4 digits

28
Q

What is the muscle of the intermediate compartment of the anterior forearm?

A

flexor digitorum superficialis

29
Q

What are the muscles of the deep muscles of the anterior forearm?

A

flexor digitorum profundus; flexor pollicis longus and pronator quadratus

30
Q

where do the deep muscles of the anterior forearm attach distally?

A

distal to the intermediate muscles

31
Q

what is the proximal attachment for flexor digitorum profundus?

A

anterior surfaces of ulnar and interosseous membvrane

32
Q

what is the proximal attachment for flexor pollicis longus?

A

shaft of radius and ulnar and interosseous membrane

33
Q

what is the proximal attachmetn for the pronator quadratus?

A

between the distal anteior surfaces of radius and ulnar

34
Q

What holds the long tendons of the anterior forearm in place at the wrist?

A

palmar carpal ligament

35
Q

what holds the long tendons of the anterior forearm in place at hte carpus?

A

flexor retinaculum

36
Q

what are the palmar carpal ligament adn the flexor retinaculum?

A

thickenings of the antebrachial fascia

37
Q

What does the common flexor tendon attach proximally to?

A

medial epicondyle of the humerus

38
Q

What is golfers elbow?

A

medial epicondylitis- tendonitis of the common flexor tendon which is felt as pain in the area of the medial epicondyle

39
Q

What is the superior border of the cubital fossa?

A

a transverse line between the epicondyles of the humerus

40
Q

What is the medial border of the cubital fossa?

A

pronator teres

41
Q

What is the lateral border of the cubital fossa?

A

brachioradialis

42
Q

what is the superficial contents of the cubital fossa?

A

median cubital vein; cephalic vein and the basilic vein and the medial and lateral cutaneous nerves o f the forearm

43
Q

What else is palpable in the cubital fossa?

A

distal tendon (deep nad lateral) and aponeurosis (medial) of biceps brachii

44
Q

What are the deep contents of the cubital fossa?

A

median nerve; brachial artery and the radial nerve

45
Q

what is the relation of the nerves in the cubital fossa?

A

median nerve is ound medial to the radial nerve

46
Q

What does the brachial artery bifurcate into at hte apex of the cubital fossa?

A

radial and ulnar arteryes

47
Q

Where does the radial nerve divide into its uperficial and deep braches?

A

deep to brachialis

48
Q

What nerve supplies the skin adn fascia of the cubital fossa?

A

the medial and lateral cutaneous nerves of the arma nd forearm

49
Q

What is the cubital fossa?

A

a traingular space between skin adn the anterior aspec of the capsule of the elbow joint

50
Q

how does the ulnar nerve reach the anterior compartment of the forearm?

A

crosses the posterior surface of the medial epicondyle of the humerus and then it passes through flexor carpi ulnaris

MSK (39 decks)

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