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ANA LEC > Q4 Elbow, arm, and forearm > Flashcards

Q4 Elbow, arm, and forearm Flashcards

1
Q

What is the sensory supply of the LATERAL upper arm?

A
  • supraclavicular
  • upper lateral cutaneous nerve of arm (axillary)
  • lower lateral cutaneous nerve of arm (radial)
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2
Q

What is the sensory supply of the MEDIAL upper arm?

A

Medial cutaneous nerve of arm and intercostal brachial nerve

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3
Q

What is the sensory supply of the POSTERIOR upper arm?

A

posterior cutaneous nerve of arm (radial)

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4
Q

Muscles of the Upper Arm ANTERIOR COMPARTMENT

A
  1. biceps brachii
  2. coracobrachialis
  3. brachialis
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5
Q

blood supply of the Upper Arm ANTERIOR COMPARTMENT

A

brachial artery

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6
Q

nerve supply of the Upper Arm ANTERIOR COMPARTMENT

A

musculocutaneous nerve

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7
Q

structures passing thru the compartment of the Upper Arm ANTERIOR COMPARTMENT

A
  1. musculocutaneous
  2. median and ulnar nerves
  3. radial nerve (in lower compartment)
  4. brachial artery
  5. basilic vein
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8
Q

action of the biceps

A
  • SUPINATOR and FLEXOR of ELBOW
  • weak SHOULDER FLEXOR
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9
Q

action of coracobrachialis

A

FLEXES ARM and weak ADDUCTOR

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10
Q

action of brachialis

A

FLEXOR of ELBOW

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11
Q

at what landmark does the brachial artery become the radial and ulnar arteries

A

at the neck of the radius

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12
Q

at what landmark does the axillary artery becomes the brachial artery

A

lower border of teres major

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13
Q

at what cord does the musculocutaneous nerve come from

A

lateral cord

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14
Q

what part of the musculocutaneous nerve is the sensory supply?

A

lateral cutaneous nerve of the forearm

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15
Q

at what cord does the median nerve come from

A

medial and lateral cords

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16
Q

at what cord does the ulnar nerve come from

A

medial cord

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17
Q

what are the nerves in the anterior compartment of the upper arm

A
  1. musculocutaneous nerve
  2. median nerve
  3. ulnar nerve
  4. radial nerve
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18
Q

supplies most muscles in anterior forearm

A

median nerve

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19
Q

Muscles of the Upper Arm POSTERIOR FASCIAL COMPARTMENT

A

three heads of triceps

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20
Q

nerve supply of the Upper Arm POSTERIOR FASCIAL COMPARTMENT

A

radial nerve

21
Q

blood supply of the Upper Arm POSTERIOR FASCIAL COMPARTMENT

A

profunda brachii and ulnar collateral arteries

22
Q

structures passing thru the Upper Arm POSTERIOR FASCIAL COMPARTMENT

A
  1. Radial nerve
  2. Ulnar nerve
23
Q

action of triceps

A

EXTENSOR of ELBOW and weak EXTENSOR of shoulder

24
Q

what are the joints of the elbow

A
  1. humero ulnar joint
  2. proximal radio ulnar joint
25
Q

location of humero ulnar joint

A

between distal humerus and proximal ulna

26
Q

locational of proximal radio ulnar joint

A

between proximal head of the radius and radial notch of proximal ulna

27
Q

what type of joint is the humero ulnar joint

A

hinge (ginglymus) joint; elbow joint

28
Q

action of humero ulnar joint

A

flex and extend elbow; 1 degree of freedom

29
Q

what type of joint is the proximal radio ulnar joint

A

pivot (trochoid) joint

30
Q

action of proximal radio ulnar joint

A

pronate and supinate forearm; rotates

31
Q

ligaments of the elbow

A
  1. lateral ligament
  2. medial ligament
  3. annular ligament
32
Q

a triangular ligament with 3 bands

A

medial ligament (ulnar collateral ligament)

33
Q

the 3 bands of medial ligament

A
  1. anterior bundle = medial epicondyle to coronoid process
  2. posterior bundle = medial epicondyle to olecranon
  3. transverse band = ulnar attachments of anterior and posterior bands
34
Q

location of medial ligament

A

medial side of elbow; attached to ulna (hence the other term ulnar collateral ligament)

35
Q

lateral ligament (radial collateral ligament) location

A

attaches to radial bone

36
Q

lateral ligament (radial collateral ligament) attachment

A

triangular ligament; attached from apex of lateral epicondyle to base of upper margin of annular ligament

37
Q

annular ligament

A
  • attached to the anterior and posterior margin of radial notch of ulna
  • forms collar around head of radius
  • encircles head of radius, stabilizing it in the radial notch
38
Q

boundaries of cubital fossa

A
  1. Superior - imaginary lines connecting epicondyle of humerus
  2. medial - pronator teres
  3. lateral - brachioradialis
  4. floor - brachialis and supinator
  5. roof - deep fascia and bicipital aponeurosis
39
Q

carrying angle of cubital fossa

A

normal value : 170 deg in male; 167 deg in female

40
Q

contents of cubital fossa

A
  • median nerve
  • bifurcation of brachial artery to ulnar and radial
  • biceps tendon
  • radial nerve and deep branches
41
Q

muscle layers of the anterior compartment of forearm

A
  • superficial
  • deep
  • intermediate
42
Q

blood supply of the anterior compartment of forearm

A

radial and ulnar arteries

43
Q

nerve supply of the anterior compartment of forearm

A

median and ulnar nerves

44
Q

muscles of the SUPERFICIAL LAYER of the anterior compartment of forearm

A
  1. pronator teres
  2. flexor carpi radialis
  3. palmaris longus
  4. flexor carpi ulnaris
45
Q

muscles of the DEEP LAYER of the anterior compartment of forearm

A
  1. flexor pollicis longus
  2. flexor digitorum profundus
  3. pronator quadratus
46
Q

muscles in the lateral compartment of forearm

A
  1. brachioradialis
  2. extensor carpi radialis longus
47
Q

muscles of the SUPERFICIAL LAYER of the posterior compartment of forearm

A
  1. extensor carpi radialis brevis
  2. extensor digitorum
  3. extensor digiti minimi
  4. extensor indicis
  5. anconeus
48
Q

muscles of the DEEP LAYER of the posterior compartment of forearm

A
  1. supinator
  2. abductor pollicis longus
  3. extensor pollicis brevis
  4. extensor pollicis longus
  5. extensor indicis

ANA LEC (5 decks)

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