UPPER LIMB ANATOMY Flashcards Preview

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Flashcards in UPPER LIMB ANATOMY Deck (61)
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1
Q

sterneoclavicular joint

A

saddle type

2
Q

acromioclavicular joint

A

plane type

3
Q

elbow joint (humeroulnar and radiohumeral) joints

A

hinge type

4
Q

proximal radioulnar joint

A

pivot type

5
Q

radoiocarpal joint

A

ellipsoid type

6
Q

distal radioulnar joint

A

pivot type

7
Q

what happens to the bones in the forearm during pronation?

A

radius moves over ulna

8
Q

what are the 3 ligaments in the elbow?

A

lateral collateral ligament
medial collateral ligament
annular ligament

9
Q

attachments of lateral collateral ligament

A

lateral epicondyle of humerus to annular ligament

10
Q

attachments of medial collateral ligament

A

medial epicondyle of humerus to ulna

11
Q

annular ligament wraps and surround the …..

A

radius

12
Q

joints in the hands from proximal to distal

A

carpometacarpal
metacarpalpharyngeal
proximal and distal interphalangeal joints

13
Q

name the axis-appendicular muscles on the back

A

trapezius
latissimus dorsi
rhomboid minor
rhomboid major

14
Q

innervation of trapezius

A

CNXI - spinal accessory

15
Q

latissimus dorsi innervation

A

thoracodorsal nerve

16
Q

rhomboid muscles innervation

A

dorsal scapular nerve

17
Q

name the axis-appendicular muscles on the front

A

pectoralis major
pectoralis mino
serratus anterior

18
Q

pectoralis major innervation

A

medial and lateral pectoral nerves

19
Q

pectoralis minor innervation

A

medial pectoral nerves

20
Q

serratus anterior innervation

A

long thoracic nerve

21
Q

muscles in the scapular region

A

rotator cuff

levator scapulae

22
Q

levator scapulae innervation

A

dorsal scapular nerve

23
Q

4 rotator cuff muscles

A

supraspinatus
infraspinatus
teres minor
subscapularis

24
Q

role of the rotator cuff muscles

A

hold the humerus in the glenoid fossa

25
Q

how much of the humeral head is in contact with the glenoid fossa at any one time?

A

1/3rd

26
Q

compartments of the arm

A

anterior and posterior

27
Q

muscles in anterior compartment of the arm

A

BBC
biceps brachii
brachialis
coracobrachialis

28
Q

innervation of muscles in anterior compartment of the arm

A

musculocutaneous n.

29
Q

actions of muscles in anterior compartment of the arm

A

flexion of arm and forearm

BB also supinates forearm

30
Q

muscle in the posterior compartment of the arm

A

triceps brachii

31
Q

innervation of the muscle in the posterior compartment of the arm

A

radial n.

32
Q

action of muscle in the posterior compartment of the arm

A

extension of arm and forearm

33
Q

superficial layer of anterior compartment of the forearm

A

pronator teres
flexor carpi radialis
palmaris longus
flexor carpi ulnari

34
Q

intermediate layer of anterior compartment of forearm

A

flexor digitorum superficialis

35
Q

deep layer of anterior compartment of forearm

A

flexor pollicus longus
flexor digitorum profundus
pronator quadratus

36
Q

innervations of anterior compartment of forearm

A

all median nerve

except,
flexor carpi ulnaris and medial half of flexor digitorum profundus = ulnar nerve

37
Q

actions of anterior compartment of forearm

A

flexion of the wrist and digits, pronation, abduction and adduction of the wrist

38
Q

7 muscles in superficial layer of posterior compartment of forearm

A
brachioradialis 
extensor carpi radialis longus 
extensor carpi radialis brevis 
extensor digitorum 
extensor digiti minimi 
extensor carpi ulnari 
anoconeus
39
Q

5 muscles in deep layer of posterior compartment of forearm

A
supinator 
abductor pollicus longus 
extensor pollicus longus 
extensor pollicis brevis 
extensor indicis
40
Q

innervation of posterior compartment of forearm

A

radial nerve

41
Q

actions of posterior compartment of the forearm

A

extension of the wrist and digits
supination
abduction and adduction of the wrist

42
Q

muscles in the thenar (thumb) eminence

A

abductor pollicis brevis
flexor pollicis brevis
opponens brevis

43
Q

muscles in the hypothenar (little finger) eminence

A

abductor digiti minimi
flexor digiti minimi brevis
opponens digit minimi

44
Q

innervation of thenar eminence and what pathology can affect this area

A

recurrent branch of median nerve

carpal tunnel syndrome

45
Q

innervation of the hypothenar eminence

A

deep branch of the ulnar nerve

46
Q

what the two kinds of intrinsic muscles of the hands?

A

lumbricals and interossei

47
Q

what are the lumbricals attached to

A

tendons of flexor digitorum profundus

48
Q

innervation of the lumbricals

A

medial n. for the lateral 2

ulnar n. for the medial 2

49
Q

role of the dorsal interossei

A

abduction of digits

50
Q

role of palmar interossei

A

adduction of digits

51
Q

innervation of the interossie

A

ulnar n.

52
Q

where does the brachial plexus originate?

A

anterior rami of C5-T1

53
Q

where does the brachial plexus pass through?

A

the axilla to the medial arm

54
Q

what do the cords of the brachial plexus travel around?

A

the brachial artery

55
Q

brachial plexus

A

really tired drink coffee now

roots 
trunks 
divisions 
cords 
nerves
56
Q

roots

A

C5-T1

57
Q

trunks

A

superior
middle
inferior

58
Q

divisions

A

anterior and posterior for each

59
Q

joining of divisions

A

anterior of superior and middle trunks join

posterior of all 3 trunks join

anterior of inferior stays alone

60
Q

cords

A

lateral (2 anterior trunks)

posterior (3 posterior trunks)

medial (1 anterior trunk)

61
Q

nerves

A

lateral and medial ->
musculocutaneous
median
ulnar

posterior ->
axillary
radial