Brachium

Question 1

What nerve innervates the anterior compartment?

Answer 1

musculocutaneous

Question 2

what artery supplies the anterior compartment?

Answer 2

brachial a

Question 3

main function of the anterior compartment?

Answer 3

flexion

Question 4

what nerve innervates the posterior compartment?

Answer 4

radial nerve

Question 5

what artery supplies the posterior compartment?

Answer 5

profundi brachial a.

Question 6

main function of the posterior compartment?

Answer 6

extension

Question 7

function of the coracobrachialis?

Answer 7

flexes, adducts shoudler

Question 8

origin of the coracobrachialis?

Answer 8

corocoid process of scapula

Question 9

insertion of the coroacobrachialis?

Answer 9

humerus

Question 10

Function of the brachialis?

Answer 10

flexor of the elbow, strong flexor at all joint angles

Question 11

origin of the brachialis?

Answer 11

humerus

Question 12

insertion of the brachialis?

Answer 12

ulna

Question 13

insertion of the long head of biceps?

Answer 13

intertubercular groove

Question 14

origin of the long head?

Answer 14

supraglenoid tubercle of scapula

Question 15

how does you rupture a biceps tendon?

Answer 15

excessive wear

Question 16

what muscle head does rupturing a bicep tendon involve?

Answer 16

the long head

Question 17

what is the deformity associated with biceps tendon rupture?

Answer 17

popeyes deformity, unopposed muscles bunch up in anterior component

Question 18

Origin of the short head of biceps?

Answer 18

corocaoid process

Question 19

function of the bicipital apneurosis?

Answer 19

reinforces the cubital fossa

Question 20

function of the biceps brachii?

Answer 20

flexion of shoulder joint, flexion of elbow joint, supinator of superior radioulnar joint

Question 21

origin of long head of triceps?

Answer 21

infraglenoid tubercle

Question 22

function of the long head of triceps?

Answer 22

extension of shoulder, elbow, stabilzation of shoulder

Question 23

origin of lateral head of triceps?

Answer 23

proximal shaft of humerus

Question 24

function of lateral head of triceps?

Answer 24

strongest extensor of elbow

Question 25

Origin of medial head?

Answer 25

distal posterior shaft of humerus

Question 26

Function of medial head?

Answer 26

most active extensor of elbow

Question 27

function of the anconeus?

Answer 27

accessory extensor, prevents pinching

Question 28

purpose of the cubital fossa?

Answer 28

passageway between upper arm and forearm

Question 29

what is the median cubital vein?

Answer 29

connection between basilic and cephalic veins within the subcutaneous tissue

Question 30

Which vein is most commly used to draw blood?

Answer 30

median cubital vein

Question 31

which artery does the brachial stem from?

Answer 31

axillary artery

Question 32

what does the braichial artery turn into?

Answer 32

splits into radial and ulnar arteries at cubital fossa

Question 33

what does profunda brachii artery stem from?

Answer 33

it is a branch off of the brachial artery

Question 34

what does the profunda brachii turn into?

Answer 34

divides as a radial collateral branch and a middle collateral branch

Question 35

note location of humeral nutrient artery, superior ulnar collateral and inferior ulnar colateral

Answer 35

yes

Question 36

pertubation of which nerve causes parasthesia

Answer 36

ulnar

Question 37

what does the musculocutaneous nerve inneravte in brachial region?

Answer 37

biceps brachii, brachialis, coracobrachialis

Question 38

what does the radial nerve innervate?

Answer 38

triceps brachii, and forearm skin

Question 39

what does the median nerve innervate?

Answer 39

continues to antebrachial to innervate hand

Question 40

what does the ulnar nerve innervate?

Answer 40

continues to antebrachial to innervate hand

Question 41

what is full extension limited by?

Answer 41

interaction between olecranon/olecranon fossa

Question 42

what is full flexion limited by?

Answer 42

soft tissues of anterior compartment,

Question 43

function of septa bands?

Answer 43

divide compartments of the brachii, provide transit for vessels and nerves traveling between axilla and antebrachium