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Anatomy > The Forearm Cubital Fossa > Flashcards

The Forearm Cubital Fossa Flashcards

1
Q

what are the most common areas to draw blood from

A

medial cubital vein > cephalic vein > basilic vein

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2
Q

what is the terminal branch of the musculocutaneous nerve

A

lateral antebrachial cutaneous nerve

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3
Q

what is the strongest flexor of the elbow joint

A

brachioradialis

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4
Q

what is the lateral boundary of the cubital fossa

A

brachioradialis muscle

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5
Q

what is the medial boundary of the cubital fossa

A

pronator teres muscle

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6
Q

what is the superior boundary of the cubital fossa

A

an imaginary line between medial and lateral epicondyles of humerus

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7
Q

what is the roof of the cubital fossa

A

skin, superficial and deep fascia, bicipital aponeurosis

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8
Q

what is the floor of the cubital fossa

A

supinator and brachialis muscle

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9
Q

what are the contents of the cubital fossa

A

-median nerve
- brachial artery with bifurcation of radial and ulnar arteries
- brachial veins
- tendon of biceps brachii and bicipital aponeurosis
- radial nerve: deep radial nerve and superficial radial nerve

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10
Q

what structures are posterior to the cubital region

A

-triceps and olecranon process
-anconeus
-ulnar nerve runs posterior to medial epicondyle of humerus
- posterior ulnar recurrent artery also runs posterior to medial epicondyle

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11
Q

where is the common extensor origin

A

lateral epicondyle of humerus

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12
Q

where is the common flexor origin

A

medial epicondyle of humerus

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13
Q

where is the coronoid fossa located

A

superior to the capitulum and trochlea on the anterior surface of the humerus

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14
Q

where is the olecranon fossa located

A

superior to the trochlea on the posterior surface of the humerus

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15
Q

what position do we naturally hold our forearm

A

pronated

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16
Q

what happens to the radius and ulna during pronation

A

radius rotates over ulna and ulna stays stationary

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17
Q

what are the cutaneous nerves of the forearm

A

musculocutaneous nerve, medial antebrachial cutaneous nerve, radial nerve

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18
Q

what branches off the radial nerve

A

posterior antebrachial cutaneous nerve

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19
Q

what are the 4 superficial muscles of the anterior forearm

A

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

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20
Q

what is the medial to lateral order of the 4 superfical muscles of the anterior forearm

A

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

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21
Q

what is the intermediate muscle of the anterior forearm

A

flexor digitorum superficialis - ulnar head and humeral head

22
Q

what are the 3 deep muscles of the anterior forearm

A

-flexor digitorum profundus, flexor pollicis longus, pronator quadratus

23
Q

what are the 6 muscles of the superficial layer of the posterior forearm (radialis group)

A

-brachioradialis
- extensor carpi radialis longus
-extensor carpi radialis brevis
-extensor capri ulnaris
-extensor digit minimi
-extensor digitorum

24
Q

what are the 5 deep muscles of the posterior forearm

A

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

25
Q

where do most of the superficial extensors attach to

A

lateral epicondyle of humerus

26
Q

what does brachioradialis do

A

flexes the elbow joint

27
Q

what are all of the muscles of the posterior forearm innervated by

A

the radial nerve via the deep branch of the radial nerve or posterior interosseous nerve

28
Q

where is the superficial branch of the radial nerve located and what type of innervation does it supply

A

lateral, runs beneath brachioradialis
-cutaneous only, no motor branches

29
Q

where is the deep branch of the radial nerve located and what does it become

A

posterior, becomes posterior interosseous nerve

30
Q

what does the deep branch of the radial nerve continue as

A

the posterior interosseous nerve

31
Q

what do the tendons of extensor digitorum form

A

a dorsal expansion over the metacarpophalangeal and interphalangeal joints called the extensor expansion and extensor hood

32
Q

what happens to the extensor hood as the extensor digitorum contracts

A

the extensor digitorum pulls on the extensor expansion (extensor hood), which causes the IP joints to extend

33
Q

what else attaches to the expansion at the hood and help to extend the IP joints

A

the lumbricals

34
Q

what are the “outcropping” muscles/ the muscles that form the anatomical snuff box

A

-abductor pollicis longus
-extensor pollicis longus
-extensor pollicis brevis

35
Q

what are the deep extensors of the posterior forearm innervated by

A

deep branch of the radial nerve of the posterior interosseous nerve

36
Q

what are the anatomical relationships from lateral to medial of the radial artery, ulnar artery and nerve, median nerve, and superficial branch of the radial nerve

A

-superficial branch of the radial nerve
- radial artery
-median nerve
-ulnar artery
-ulnar nerve

37
Q

where is the ulnar nerve located in relation to the medial epicondyle

A

posterior

38
Q

where does the ulnar nerve run

A

along the medial forearm under the flexor carpi ulnaris

39
Q

what does the ulnar nerve go through

A

guyon’s cancl lateral to the pisiform bone

40
Q

what does the ulnar nerve supply as it enters the hand

A

most of the intrinsic muscles of the hand

41
Q

what is the spatial relationship between the ulnar nerve and ulnar artery

A

they run together but the nerve is medial

42
Q

what is the spatial relationship between the ulnar artery and flexor carpi ulnaris

A

located under flexor carpi ulnaris or just lateral to it

43
Q

what is the spatial relationship between the ulnar artery and nerve to psiform bone and guyon’s canal

A

lateral

44
Q

what is the median nerves spatial relationship to pronator teres

A

runs through it

45
Q

what is the median nerves spatial relationship to flexor digitorum superficialis

A

deep to it, runs between FD superficialis and FD profundus

46
Q

what is the median nerves spatial relationship to flexor retinaculum

A

deep to it through carpal tunnel

47
Q

what is the ulnar artery’s spatial relationship to flexor carpi ulnaris

A

located under flexor carpi ulnaris or just lateral to it

48
Q

what is the ulnar artery and ulnar nerve’s relationship to the pisiform bone and guyons canal

A

lateral

49
Q

what is the radial artery’s relationship to the superficial branch of the radial nerve

A

artery is medial

50
Q

what is the radial artery’s relationship to brachioradialis

A

under brachioradialis or just medial to it

51
Q

what is the relationship between anterior interosseous nerve and anterior interosseous artery to the pronator quadratus muscle

A

the nerve and artery run deep (posterior) to the muscle

Anatomy (27 decks)

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