Upper Limb II: The Arm and Forearm Flashcards Preview

Exam 3- Anatomy > Upper Limb II: The Arm and Forearm > Flashcards

Flashcards in Upper Limb II: The Arm and Forearm Deck (138)
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31

3 parts of the triceps

long head
lateral head
medial head

32

what nerve innervates the extensors?

radial nerve

33

proximal attachment of anconeus

lateral epicondyle of humerus

34

distal attachment of anconeus

lateral surface of olecranon
superior part of surface of ulna

35

blood supply of anconeus

deep brachial artery

36

innervation of anconeus

radial nerve

37

proximal attachment of long head of triceps bracii

infraglenoid tubercle

38

proximal attachment of lateral head of triceps bracii

posterior surface of humerus

39

proximal attachment of medial head of triceps bracii

posterior surface of humerus, inferior to radial groove (spiral groove)

40

distal attachment of triceps bracii

proximal olecranon and fascia of forearm

41

actions of triceps bracii

extends forearm at elbow joint

resists dislocation of shoulder joint (long head)

42

blood of triceps bracii

deep brachial artery

43

innervation of triceps bracii

radial nerve

44

the activity at the elbow joint involves working (with/against) strong flexing

against

triceps are constantly acting as antagonists to forearm flexors

45

what is the cubital fossa?

junction between the arm and forearm

46

superior boundary of cubital fossa

imaginary line between medial and lateral epicondyles of humerus

47

lateral boundary of cubital fossa

brachioradialis

48

medial boundary of cubital fossa

pronator teres

49

roof boundary of cubital fossa

skin, superficial and deep fascia. bicipital aponeurosis

50

floor of cubital fossa

supinator and brachialis

51

name the contents of the cubital fossa

1. median nerve
2. bifurcation of radial and ulnar arteries
3. brachial veins (venae comitantes)
4. tendon of biceps brachia and bicipital aponeurosis
5. radial nerve (deep and superficial)

52

what lies posterior to the cubital region?

elbow region

53

what does the elbow region consist of?

triceps and olecranon process

anconeus

ulnar nerve runs posterior to medial epicondyle of humerus

posterior ulnar recurrent artery

54

proximal attachment of pronator teres

coronoid process of ulna

55

distal attachment of pronator teres

middle of lateral surface of radius

56

actions of pronator teres

pronates and flexes forearm at elbow

57

innervation of pronator teres

median nerve

58

proximal attachment of flexor carpi radialis

medial epicondyle of humerus (common flexor origin)

59

distal attachment of flexor carpi radialis

base of second metacarpal

60

actions of flexor carpi radialis

flexes and abducts hand at wrist