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Muscular > forearm and elbow > Flashcards

forearm and elbow Flashcards

1
Q

forearm

A

part of the upper limb that extends between the elbow joint and the wrist joint
- divided into anterior and posterior compartment

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2
Q

muscles of the anterior compartment of the forearm

A

flex the wrist and digits and pronate the hand

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3
Q

muscle of the posterior compartment of the forearm

A

extend the wrist and digits and supinate the hand

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4
Q

radius bone

A
  • lateral in position
  • large distally where it articulates with the wrist
  • small proximal where it articulates w/humerus

proximal = head, neck, radial tuberosity
distal = two facets for articulation w/carpal bones

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5
Q

ulna bone

A
  • medial
  • proximal and distal are reverse from radius

proximal = olecranon, coronoid process, trochlear notch, radial notch, tuberosity of ulna
distal = small, rounded head, ulnar styloid process

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5
Q

interosseous membrane

A

thin fibrous sheet = connects medial & lateral borders of the radius and ulna

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6
Q

SUPERFICIAL anterior compartment of forearm

flexor carpi ulnaris

Origin, insertion, innervation, function

A
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7
Q

SUPERFICIAL anterior compartment of forearm

palmaris longus

Origin, insertion, innervation, function

A
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8
Q

SUPERFICIAL anterior compartment of forearm

flexor carpi radialis

Origin, insertion, innervation, function

A
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9
Q

SUPERFICIAL anterior compartment of forearm

pronator teres

Origin, insertion, innervation, function

A
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10
Q

INTERMEDIATE anterior compartment of the forearm

flexor digitorum superficialis

Origin, insertion, innervation, function

A
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11
Q

DEEP anterior compartment of the forearm

flexor digitorum profundus

Origin, insertion, innervation, function

A
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12
Q

DEEP anterior compartment of the forearm

flexor pollicis longus

Origin, insertion, innervation, function

A
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13
Q

DEEP anterior compartment of the forearm

pronator quadratus

Origin, insertion, innervation, function

A
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14
Q

pronation

A

rotation of the radius at the elbow and movement of the distal end of the radius OVER the ulna

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15
Q

SUPERFICIAL posterior compartment of the forearm

brachioradialis

Origin, insertion, innervation, function

A
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16
Q

SUPERFICIAL posterior compartment of the forearm

extensor carpi radialis longus

Origin, insertion, innervation, function

A
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17
Q

SUPERFICIAL posterior compartment of the forearm

extensor carpi radialis brevis

Origin, insertion, innervation, function

A
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18
Q

SUPERFICIAL posterior compartment of the forearm

extensor digitorum

Origin, insertion, innervation, function

A
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19
Q

SUPERFICIAL posterior compartment of the forearm

extensor digiti minimi

Origin, insertion, innervation, function

A
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20
Q

SUPERFICIAL posterior compartment of the forearm

extensor carpi ulnaris

Origin, insertion, innervation, function

A
21
Q

SUPERFICIAL posterior compartment of the forearm

anconeus

Origin, insertion, innervation, function

A
22
Q

DEEP posterior compartment of the forearm

spinator

Origin, insertion, innervation, function

A
23
Q

DEEP posterior compartment of the forearm

abductor pollicis longus

Origin, insertion, innervation, function

A
24
Q

DEEP posterior compartment of the forearm

extensor pollicis brevis

Origin, insertion, innervation, function

A
25
Q

DEEP posterior compartment of the forearm

extensor pollicis longus

Origin, insertion, innervation, function

A
26
Q

DEEP posterior compartment of the forearm

extensor indicis

Origin, insertion, innervation, function

A
27
Q

radial artery

A

originates from the brachial artery approx neck of the radius an passes along lateral aspect of the forearm

28
Q

ulnar artery

A

passes down the medial side of the forearm
- larger than radial artery

29
Q

brachial artery

A

enters forearm by passing the cubital fossa at cubital fossa it divides into radial and ulnar artery

30
Q

deep venous drainage

radial and ulnar veins drain into

A

brachial vein

31
Q

superificial venous drainage of forearm is performed by

A
  • basilic vein (medial)
  • cephalic vein ( lateral)
32
Q

median nerve

A

innervates muscles of the anterior comp. except flexor carpi and medial part of flexor digitorum

33
Q

ulnar nerve

A

innervates only the flexor carpi ulnaris and medial part of flexor digitorum

34
Q

radial nerve

A

bifurcates into deep and superficial branches. deep branches innervates posterior comp of forearm

35
Q

medial antebrachial cutaneous nerve (innervation)

A

provides sensory to medial part of forearm
- branches directly from the medial cord of the brachial plexus

36
Q

musculocutaneous nerve (innervation)

A

sensory to lateral aspect of forearm through terminal branche lateral antebrachial cutaneous nerve

37
Q

radial nerve (innervation)

A

sensory innervation to posterior side of the forearm

38
Q

median and ulnar nerves (innervation)

A

do not provide sensory to forearm

39
Q

1/3 elbow articulation

ulnohumeral

A

hinge joint between olecranon of ulna and trochela of humerus

40
Q

2/3 elbow articulation

radiohumeral

A

hinge joint between head of radius and capitum of humerus

41
Q

3/3 elbow articulation

proximal radioulnar

A

pivot joint b/w head of radius and radial notch of ulna

42
Q

what are the three ligaments that reinforce the external surface of the elbow joint

A
  • radial collateral
  • ulnar collateral
  • anular ligament of the radius
43
Q

cubital fossa

A

triangular depression formed between brachioradialis and pronator teres muscle

44
Q

major contents of cubital fossa from lateral to medial

A
  • tendon of the biceps brachii
  • brachial artery
  • median nerve
45
Q

clinical correlation

pulled elbow

A
  • under age 5
  • sharp pull of childs hand
  • not yet developed head of radius and laxity of the anular ligament of radius
46
Q

elbow fractures

A
  • radial head
  • olecranon
  • supracondylar
    result from trauma, falls, outstretched hand, direct elbow blow to elbow, sports

supracondylar is a line of division not an actual part

47
Q

tennis (epicondylitis)

A
  • lateral epicondyle
  • common extensor origin
  • overuse strain
48
Q

golfers (epicondylitis)

A
  • medial epicondyle
  • flexor
  • overuse strain
49
Q

1/3 classic injuries to the radius and ulna

monteggias fracture

A

proximal third of ulna and anterior dislocation of head of radius at elbow

50
Q

2/3 classic injuries to radius and ulna

galeazzi fractures

A

fracture distal third of the radius associated w/subluxation of head of ulna at wrist joint

51
Q

3/3 classic injuries to radius and ulna

colles fracture

A

fracture and posterior displacement of distal end of the radius

Muscular (12 decks)

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