arm and shoulder joint

Question 1

lymph fluid from the extremeties is conveyed by a series of ____ and ___ vessels

Answer 1

superficial and deep

Question 2

Supraglenoid tubercle

Answer 2

for attachment of the long head of the biceps

Question 3

Infraglenoid tubercle

Answer 3

for attachment of the long head of the triceps

Question 4

Capitulum

Answer 4

for articulation with the head of the radius

Question 5

Trochlea

Answer 5

articulation with the ulna

(think trochlea is near the trunk)

Question 6

sheath of deep fascia that encloses the arm like a sleeve, continuous from the deltoid, pectoral, and axillary fascia proximally

Answer 6

brachial fascia

Question 7

fascia

Answer 7

the pectoral fascia then becomes the deltoid fascia then becomes the brachial fascia between shoulder and elbow and then its the antebrachial fascia distally into the forearm

Question 8

strong ___ arise from the brachial fascia and attach to the shaft of the humerus

Answer 8

septa

Question 9

in the brachial fascia, _____ and ____ intermuscular septa divide the arm into an ______ and ______ compartment with muscles that share the same function and innervation

Answer 9

medial/lateral

anterior (flexor)/Posterior (extensor)

Question 10

biceps muscles cross ___ joints

Answer 10

two

shoulder and elbow hence it acts on both joints

Question 11

innervation of biceps brachii

Answer 11

C5 (and C6) of the musculocutaneous nerve

Question 12

origin of biceps brachii

Answer 12

long head - supraglenoid tubercle of scapula (tendon courses in the intertubercular sulcus or bicipital groove)

short head - coracoid process of scapula

Question 13

Rupture of the _____ of the biceps generally occurs due to “wear and tear” or prolonged tendonitis (baseball pitchers, weight lifters) or chronic arthritis (i.e. rheumatoid arthritis) within the joint

Answer 13

long head

Question 14

insertion of brachialis

Answer 14

proximal ulna (tuberosity)

Question 15

insertion of biceps brachii

Answer 15

radial tuberosity of the proximal radius as well as the anterachial fascia via the bicipital aponeurosis

Question 16

innervation of posterior arm compartment

Answer 16

radial nerve

Question 17

only muscle located in posterior compartment of the arm

Answer 17

triceps brachii

Question 18

located deep to the biceps

Answer 18

brachialis

Question 19

origin of brachialis

Answer 19

distal half of the humerus

Question 20

saturday night palsy

Answer 20

compression of radial nerve against the humerus can cause a temporary wrist drop

Question 21

located on the posterior surface for passage of the radial nerve and the deep brachial artery

Answer 21

radial groove!

Question 22

on posterior aspect of medial epicondyle

Answer 22

ulnar nerve

(common site for ulnar nerve impingment)

Question 23

muscles of the anterior arm compartment

Answer 23

biceps brachii

coracobrachialis

brachialis

Question 24

muscles of the anterior arm compartment are innervated by the

Answer 24

musculocutaneous nerve

Question 25

the venous system of the upper limb consists of ________ and ________ veins

Answer 25

superficial and deep veins

Question 26

what innervates the muscles that extends the wrist

Answer 26

radial nerve

Question 27

perforating veins

Answer 27

connect the superficial veins to the deep veins in the upper limb

Question 28

superficial veins are located wtihin the _____ tissues

Answer 28

subcutaneous (easily visible)

Question 29

common site for phelbotomy

Answer 29

median cubital vein

Question 30

what are the superficial veins?

Answer 30

cephalic vein and basilic vein (basilic is medial/basilic near boob)

Question 31

pulsating ____ help propel venous blood towards the heart

Answer 31

arteries

Question 32

vein that descends the anterior lateral aspect of the arm

Answer 32

cephalic vein

Question 33

deltopectoral triangle boundaries

Answer 33

clavicle, pectoralis major, deltoid

Question 34

where cephalic vein joins the axillary (deep) vein

Answer 34

deltopectoral triangle

Question 35

vein that ascends the anterior medial aspect of the arm

Answer 35

basilic

Question 36

both superficial veins communicate via the _________ anterior to the elbow

Answer 36

median cubital vein

Question 37

deep veins

Answer 37

brachial veins

Question 38

there are ___ veins for every artery in the arm

Answer 38

2

Question 39

any muscle that crosses two joints

Answer 39

has a tendancy to tear

Question 40

prime flexor of arm

Answer 40

brachialis

Question 41

prime supinator of arm

Answer 41

biceps brachii

Question 42

this nerve pierces the coracobrachialis

Answer 42

musculocutaneous nerve

Question 43

action of coracobrachialis

Answer 43

adductor and flexor of arm

Question 44

lateral cutaneous nerve of the forearm

Answer 44

musculocutaneous nerve

Question 45

musculocutaneous nerve innervates the ______ and proviedes sensation to the \_\_\_\_\_\_\_\_

Answer 45

muscles in the anterior compartment of the arm lateral forearm

Question 46

describe the subclavian artery and its changes

Answer 46

the subclavian artery passes the 1st rib and becomes the acillary artery, the axillary artery traverses the teres major muscle and becomes the brachial artery, the brachial artery divides into radial and ulnar arteries which end up vascularizing the arches in the hand SABUR

Question 47

branches of the brachial artery

Answer 47

deep profunda brachial artery radial and middle collateral arteries (deep branch) superior ulnar collateral artery inferior ulnar collateral artery

Question 48

the brachial artery is accompanied with the ______ throughout its course

Answer 48

median nerve

Question 49

provides arterial supply to muscles of the arm and humerus

Answer 49

brachial artery

Question 50

it is clinically significant that the _________ can sometimes be ligated just above the elbow to control for heavy post traumatic bleeding

Answer 50

brachial artery - bc of extensive collateral branches can cnotinue to perfuse the forearm and hand

Question 51

only muscle located in the posterior compartment of the arm

Answer 51

triceps brachii

Question 52

insertion of triceps brachii

Answer 52

all heads insert onto the olecranon process

Question 53

radial nerve gives rise to the ______________ of the arm and forearm which supply sesation to the skin along the posterior dorsal aspect of the limb

Answer 53

posterior cutaneous nerves

Question 54

the ______ continues into the forearm and innervates the extensors of the wrist/fingers

Answer 54

radial nerve

Question 55

mid shaft humeral fractures

Answer 55

proximal fragment often displaces laterally due to pull of deltoid muscle

Question 56

\_\_\_\_\_\_\_\_\_\_\_\_\_ drain lymph fluid from the skin and subcutaneous tissues and converge to follow the _____ and _____ veins

Answer 56

superficial lymphatic vessels cephalic and basiic veins

Question 57

deep lymphatic vessels drain lymph from \_\_\_\_\_\_\_

Answer 57

joints, muscles, and bones

Question 58

deep lymphatic vessels accompany the

Answer 58

deep veins

Question 59

lymph from the nodes of the arm joins the systemic venous system via the ______ or the \_\_\_\_\_

Answer 59

right lympatic duct thoracic duct

Question 60

Answer 60

Question 61

musculocutaneous nerve

Answer 61

arises from the lateral cord of the brachial plexus

Question 62

anconeus

Answer 62

short muslce the assists the tricpes and helps extend the elbow

Question 63

glenoid labrum

Answer 63

a fibrocartilagenous "ring" that surrounds and deepnds the glenoid cavity, providing greater stability

Question 64

musculotendinous rotator cuff

Answer 64

helps stabilize and hold the humeral head with glenoid cavity

Question 65

Answer 65

Question 66

holds long head of bicep tendon in the bicipital groove

Answer 66

Transverse humeral ligament

Question 67

extrinsic protective ligament that prevents superior dislocation of humeral head

Answer 67

Coracoacromial Ligament (arch)-

Question 68

the glenohumeral joint is extremely

Answer 68

mobile

Question 69

most frequently dislocated major joint in the body

Answer 69

the glenohumeral joint

Question 70

this aspect of the glenohumeral joint is the weakest

Answer 70

inferior

Question 71

glenohumeral joint dislocations are common in the ________ direction, often tearing the _____ and \_\_\_\_\_\_\_\_

Answer 71

anterior-inferior labrum anterior joint capsule/subscapularis

Question 72

anterior dislocations of the shoulder

Answer 72

subcoracoid dislocation (humeral head often ends up beneath the coracoid process

Question 73

cutaneous nerves from the medial cord of the plexus

Answer 73

medial cutaneous nerve of the arm medial cutaneous nerve of the forearm

Question 74

cutaneous neves of the upper limb - radial nerve

Answer 74

posterior cutaneous nerve of the arm posterior utaneous nerve of the forearm superficial branch of the radial nerve

Question 75

shoulder dislocations can tear/damage the ______ which results in a high incidence of recurrence

Answer 75

glenoid labum

Question 76

the ______________ is susceptible to tenonitis and subequent tears due to its course through the bicipitalgroove and intra articular position within the shoulder joint

Answer 76

long head of the bicep