week 2 anatomy

Question 1

the axillary artery is separated in to ____ parts by _____

Answer 1

three parts, teres minor

Question 2

the axillary lymph noes drain 75% of the lymph from the breast and so may swell in cancer

Answer 2

sentinel nodes

Question 3

parts of the brachial plexus

Answer 3

-roots
-trunks
-divisions
-cords
-branches

Question 4

what nerves are apart of the M?

Answer 4

unlar n
medial n
musculocutaneous n.

Question 5

what are the names of the cords in the brachial plexus

Answer 5

medial cord
posterior cord
lateral cord

Question 6

terminal branches of the brachial plexus

Answer 6

-lateral pectoral n.
-medial pectoral n.
-medial cutaneous nerve of the forearm
-medial cutaneous nerve of the arm
- upper subscapular n
-lower subscapular n
-thoracodorsal n

Question 7

what does the axillary nerve supply?

Answer 7

• teres minor m
  -deltoid m

Question 8

posterior compartment of the arm and extensor muscles in the forearm

innervate most of the skin of the posterior forearm , and the dorsal surface of the lateral three and a half didgits

Answer 8

radial nerve

Question 9

flexor and pronator muscles in the anterior compaprment of the forearm with exceptions. thenar muscles and later two lumbricals in the hand

sensation to the lateral aspect of the palm, lateral three and a half fingers on the anterior surface of the hand

Answer 9

median n

Question 10

funny bone sensation

intrinsic muscles of the hand (apart from the thenar muscles and two lateral lumbricals)

sensation to the medial one and half fingers and the associated palm area

Answer 10

ulnar nerve

Question 11

parts of the humeral head

Answer 11

-greater tubercle
-intertubercular sulcus
- lesser tubercule
-radial groove

Question 12

parts of the anterior view of the distal end of the humerus

Answer 12

(lateral side)
-radial fossa
-capitulum

(medial side)
-coronoid fossa
-trochlea

Question 13

parts of the posterior view of the distal end of the humerus

Answer 13

-olecranon fossa
-trochlea

Question 14

parts of the top of the ulna

Answer 14

-olecranon
-trochlear notch
-coronoid process
-radial notch

Question 15

parts of the top of the radius

Answer 15

-head
-neck

Question 16

parts of the elbow joint

Answer 16

-radial and annular collateral ligament of the radius
-joint capsule
-ulnar collateral ligament
-quadrate ligament

Question 17

if sub-location of the elbow occurs what is happening

Answer 17

the radius is slipping out of the radial (vertical) ligament and the annular ligament (horizontal)

Question 18

movement of the elbow:

bringing the forearm up

Answer 18

flexion

Question 19

movement of the elbow:

bringing the forearm down

Answer 19

extension

Question 20

pronation

Answer 20

hands down (crossing)

Question 21

supination

Answer 21

hands up

Question 22

parts of the distal end of the radius

Answer 22

-radial styloid process
(end is lager than the head)
articulates with the carpal bones

• can be fractured easy

Question 23

parts of the end of the radius that articulates with the carpal bones

Answer 23

• scaphoid (carpai articular surface)
  -lunate (carpal articular surface)

Question 24

moving the hand up ( loose skin at wrist)

Answer 24

extension of the wrist

Question 25

movement of the hand down (tight skin at the wrist)

Answer 25

flexion

Question 26

bones of the hand and wrist

Answer 26

(wrist to tips)
-carpels
-metacarpals
-proximal phalanges
-middles phalanges
-distal phalanges

Question 27

joints of the hand
wrist to tips

Answer 27

-radiocarpal joint (between radius/ulna and carpal bones)
-intercarpal joint
-carpometacarpal joint (CMC) (wrist and palm)
-metacarpophalangeal joint (mp)
-interphalangeal joint (thumb)
-proximal and distal interphalangeal joints

Question 28

extends superiorly across the anterior concavity of the carpal bones and forms the roof of the carpal tunnel

Answer 28

flexor retinaculum

Question 29

spans laterally from the anterior radius to the psiform and triquetrum carpal bones medially

Answer 29

extensor retinaculum