Limb -- Arm Dissection

Front 1

what muscles are contained in the anterior compartment?

Back 1

biceps brachii
brachialis
caracobrachialis

Front 2

what innervates the muscles of the anterior compartment of the arm?

Back 2

musculocutaneous nerve

Front 3

what muscles are in the posterior compartment of the arm?

Back 3

triceps brachii
aconeus

Front 4

besides the triceps brachi and the aconeus, what else is contained in the posterior compartment of the arm?

Back 4

radial nerve
deep artery and vein of the arm

Front 5

what do the muscles of the anterior compartment of the arm?

Back 5

flex

Front 6

what do the muscles of the posterior compartment do?

Back 6

extend

Front 7

attachments of biceps brachii

Back 7

prox (1) -- short head to coracoid process
prox (2) -- supraglenoid tubercle of the scapula

dist -- tuberosity of the radius

Front 8

biceps brachii fxn

Back 8

supinate and flexes forearm

Front 9

coracobrahialis muscle attachments

Back 9

prox: coracoid process
dist: medial side of shaft of the humerus

Front 10

coracobrachialis fxn

Back 10

adducts and flexes the humerus

Front 11

attachments of brachialis

Back 11

prox: anterior surface of the distal 1/2 of the humerus
dist: coronoid process of the ulna

Front 12

brachialis fxn

Back 12

flexes forearm

Front 13

what does the musculocutaneous nerve become in the forearm?

Back 13

lateral cutaneous nerve of the forearm

Front 14

R: ulnar nerve and medial epicondyle

Back 14

nerve contacts the posterior surface of the medial epicondyle

Front 15

what artery does the median nerve travel with?

Back 15

brachial artery within the medial intermuscular septum

Front 16

three named branches of the brachial artery in the arm

Back 16

deep artery of the arm
superior ulnar collateral artery
inferior ulnar collateral artery

Front 17

what is the course of the deep artery of the arm?

Back 17

courses with the radial nerve in the radial groove of the humerus

Front 18

course of the superior sulnar collateral artery

Back 18

courses distally with the ulnar nerve and passes posterior to the medial epicondyle of the humerus

Front 19

at what point can the brachial artery become blocked and still have collateral circulation?

Back 19

any where distal to the level of the deep artery of the arm

Front 20

location of the brachial artery

Back 20

lies medial to the biceps brachii and close to the shaft of the humerus

Front 21

boundaries of the cubital fossa

Back 21

lateral -- brachioradilis
medial -- pronator teres
superior -- imaginary line connecting the medial and lateral epicondyles of the humerus
superficial -- antebrachial fascia reinfored by the bicipital aponeurosis
deep -- brachialis and supinator muscles

Front 22

relative positions of the structures in the cubital fossa

Back 22

biceps brachii tendon is lateral
brachial artery is intermediate
median nerve is medial

Front 23

attachments of the triceps brachii

Back 23

prox 1 -- long head to the infraglenoid tubercle
prox 2 -- lateral head to the posterior surface of the humerus superior to the radial groove
prox 3 -- medial head to the posterior surface of the humerus inferior to the radial groove

dist -- olecranon of the ulna

Front 24

triceps brachii muscle fxn

Back 24

extends forearm

Front 25

R: teres major and anterior surface of the long head of triceps brachii

Back 25

teres maj crosses anterior surface of the long head

Front 26

what lies in the radial groove on the humerus?

Back 26

radial nerve and deep artery of the arm

Front 27

attachments of the aconeus muscle

Back 27

prox: lateral epicondyle of the humerus
dist: lateral surface of the olecranon and superior part of the posterior surface of the ulna

Front 28

aconeus fxn

Back 28

assists triceps brachii in extension of the forearm

Front 29

what innervates the muscles of the posterior compartment of the arm?

Back 29

radial nerve

Front 30

do the median nerve and the ulnar nerve innervate the muscles of the arm?

Back 30

no

Front 31

R: ulna and radius when supinating

Back 31

parallel

Front 32

R: ulna and radius when protanating

Back 32

radius crosses the ulna

Front 33

all muscles of the anterior compartment of the forearm are innervated by what? what is the exception?

Back 33

median nerve, except for flexor carpi ulnaris muscle and medial one-half of the flexor digitorum profundus muscle (the are innervated by the ulnar nerve)

Front 34

what innervates the flexor carpi ulnaris muscle and medial one-half of the flexor digitorum profundus muscle?

Back 34

ulnar nerve

Front 35

the ulnar artery, nerve, and median nerve lie in a CT plane that separates what?

Back 35

superficial flexor group from the deep flexor group

Front 36

5 muscles in the superifical group of flexor muscles

Back 36

pronator teres
flexor carpi radialis
palmaris longus
flexor carpi ulnaris
flexor digitorum superficialis

Front 37

R: flexor digitorum superficilais to the other superficial flexor muscles

Back 37

lies deep to the other four muscles in this group

Front 38

proximal attachment of the superficial group of flexor muscles...what is it itself attached to?

Back 38

common flexor tendon, attached to the medial epicondyle of the humerus

Front 39

distal attachment of pronator teres

Back 39

middle and lateral surface of the radius

pronates the hand and flexes the forearm

Front 40

dist attach of flexor carpi radialis tendon

Back 40

base of second metacarpal bone
flexes and abducts the hand

Front 41

dist attach of palmaris longus tendon

Back 41

palmar aponeurosis
flexes hand

Front 42

dist attach flexor carpi ulnaris tendon

Back 42

pisiform bone, hamate bone, base of the fifth metacarpal
flexes and adducts the hand

Front 43

dist attach flexor digitorum superficialis tendon

Back 43

middle phalanx of digits 2-5

flexes middle phalanx of digits 2-5

Front 44

from lateral to medial, superficial structures of the wrist

Back 44

tendon of abductor pollicis longus
radial artery
tendon of the flexor carpi radialis
median nerve
tendon of palmaris longus
four tendons of the flexor digitorum superficialis
ulnar artery and ulnar nerve
tendon of the flexor carpi ulnaris

Front 45

R: superifical branch of the radial nerve and the brachioradialis tendon

Back 45

nerve emerges on dorsal side of tendon to become a cutaneous nerve

Front 46

radial recurrent artery

Back 46

branch of the radial artery near its origin
courses betw. brachioradialis muscle and brachialis muscle

anastomoses with radial collateral branch of the deep artery of the arm

Front 47

what does the median nerve innervate?

Back 47

palmaris longus
flexor carpi radialis
flexor digitorum superficialis
pronator teres

Front 48

R: median nerve to ulnar artery in cubital fossa

Back 48

nerve crosses anterior to artery

Front 49

what two muscles does the ulnar artery pass betw?

Back 49

flexor digitorum superificialis
flexor digitorum profundus

Front 50

what does the anterior interosseous artery supply?

Back 50

deep group of flexor muscles

Front 51

what does the posterior interosseus artery supply?

Back 51

extensor group of forearm muscles

Front 52

three muscles of the deep group of the flexor muscles of the forearm

Back 52

flexor digitorum profundus
flexor pollicis longus
pronator quadratus

Front 53

flexor digitorum profundus fxn

Back 53

flexes the distal phalanx of digits 2-5

Front 54

attachments flexor digitorum profundus

Back 54

prox: surface of ulna and interosseous membrane
dist: distal phalanx of digits 2 - 5

Front 55

what innervates the FDP?

Back 55

lateral one 1/2 by media nerve
medial one half by ulnar nerve

Front 56

flexor pollicis longus fxn

Back 56

flexes digit 1

Front 57

flexor pollicis longus attachments

Back 57

prox -- anterior surface of radius and interosseus membrane
dist -- distal phalanx of digit 1

Front 58

pronator quadratus muscle fxn

Back 58

pronates the hand