arteries and blood vessels and misc.

Question 1

injury to the axillary nerve is known as?

Answer 1

crutch paralysis

Question 2

what structures does the quadrilateral space contain?

Answer 2

axillary nerve and humeral circumflex blood vessels (artery and vein)

Question 3

what structures does the triangular space contain?

Answer 3

circumflex scapular branch of the subscapular artery

Question 4

what is the main arterial supply to the arm?

Answer 4

brachial artery

Question 5

the brachial artery is a continuation of the _____ and divides into what 2 branches?

Answer 5

axillary artery, ulnar and radial arteries

Question 6

the brachial artery starts where and ends where?

Answer 6

it starts at the medial aspect of the arm and descends, shifts slightly lateral and ends at the midpoint of the humerus

Question 7

where is the pulse taken on the brachial artery?

Answer 7

bicipital furrow

Question 8

where does the deep brachial branch begin? (brachial profundus)

Answer 8

it begins just distal to the teres major muscle

Question 9

what is the function of the deep brachial branch?

Answer 9

it supplies the posterior aspect of the arm and brings the axillary artery into communication with the radial artery

Question 10

what is the function of the superior and inferior collateral branches of the brachial artery?

Answer 10

they take part in the arterial anastomosis around the medial aspect of the elbow joint

Question 11

which blood vessel is used to take blood pressure?

Answer 11

brachial artery

Question 12

which veins are located in the subcutaneous tissue of the extremity and descend up the extremity?

Answer 12

cutaneous veins of the up extremity

Question 13

where is the dorsal venous arch found?

Answer 13

it is the prominent venous arch found on the back of the hand and where respective cutaneous veins arrive

Question 14

where does the cephalic vein travel and terminate?

Answer 14

it comes off the lateral aspect of the dorsal venous arch and continues in lateral aspect of arm and forearm; it terminates/ drains into the axillary vein

Question 15

where does the basilic vein travel and terminate?

Answer 15

it comes off the medial dorsal venous arch and continues in proximal forearm and arm; it joins with the brachial veins and FORMS the axillary vein

Question 16

which vein is the most prominent cutaneous vein and is the main connection between the cephalic and basilica veins?

Answer 16

median cubital vein

Question 17

where is blood most commonly taken from?

Answer 17

median cubital vein

Question 18

why is the musculocutaneous nerve rarely injured?

Answer 18

because of its protected position beneath the biceps brachii muscle

Question 19

what is the cubital fossa?

Answer 19

a depression found at the anterior aspect of the elbow and marks a point where many nerves and vessels enter the forearm

Question 20

what 4 important structures are found in the cubital fossa?

Answer 20

median nerve
brachial artery
tendon of biceps brachii
median cubital vein

Question 21

what are the branches of the radial ARTERY?

Answer 21

1. recurrent which runs proximal to brachial profundus and takes part in collateral circulation
2. unnamed muscular branches
3. superficial and deep palmar which join the smaller branches of the ulnar artery to form the superficial and deep palmar arches of the hand

Question 22

what are the branches of the ulnar ARTERY?

Answer 22

1. anterior and posterior recurrent which join the ulnar collaterals of the brachial to form collateral circulation
2. common interosseous which divides into an anterior and posterior interosseous artery
3. superficial and deep palmar which help form superficial and deep arches

Question 23

what structures are superficial to the extensor retinaculum?

Answer 23

dorsal venous arch, basilic and cephalic veins, cutaneous branches of the radial and ulnar nerves

Question 24

the ulnar nerve and ulnar artery in the hand are bound by a slip of fascia and pass where?

Answer 24

lateral to the pisiform bone

Question 25

the hand is supplied by branches of which arteries?

Answer 25

radial and ulnar arteries

Question 26

the radial nerve in the hand only has cutaneous branches and supply what?

Answer 26

lateral aspect of the dorsum of the hand and dorsal portion of the 1-4 digits

Question 27

what is the cutaneous supply of the median nerve in the hand?

Answer 27

lateral part of the palmar surface of the hand

Question 28

what is the cutaneous supply of the ulnar nerve of the hand?

Answer 28

medial aspect of the hand (both palmar and dorsal)

Question 29

what is the motor supply of the median nerve of the hand?

Answer 29

ABductor pollicis BREVIS opponens pollicis half of flexor pollicis brevis 1st and 2nd lumbricals

Question 30

what is the MOTOR supply of the ulnar nerve in the hand?

Answer 30

``` abductor digiti minimi flexor digiti minimi opponens digiti minimi 3rd and 4th lumbricals interossei palmar brevis and half of flexor pollicis brevis ```

Question 31

the branches of the radial and ulnar arteries fuse to form what?

Answer 31

superficial and deep palmar arches of the hand

Question 32

the princeps pollicis is a metacarpal branch that comes off where to which digit?

Answer 32

it comes off the arches and goes to the first digit

Question 33

the radialis indicis artery goes where?

Answer 33

to the 2nd digit