Block 2 Cubital Fossa

Front 1

Picture/tell me where all the "condyles" are on the distal part of the humerus. netters424

Back 1

lateral and medical supracondylar ridges=ridges on the bone

lateral and medical condyles

lateral and medial epicondyles

Front 2

articulating surface covered in cartilage that articulates with the radius

Back 2

capitulum

Front 3

articulating surface covered in cartilage that articulates with the ulna

Back 3

trochlea

Front 4

the coronoid fossa is important for what?

Back 4

medial fossa on the distal end of the humerus that accomodates process of the ulna during flexion

Front 5

what fits the head of the radius when you flex your elbow?

Back 5

the radial fossa

Front 6

the olecranon fossa does what? where is it located?

Back 6

located on the posterior humerus that accomdates a process on the ulna called the olecranon

Front 7

the radius and ulna have bone tuberosities that are used for what?

Back 7

muscle/tendon insertion

Front 8

what do the medial and lateral intermuscular septum do?

Back 8

divide the muscles/nerves/arteries/veins into anterior and posterior segments

Front 9

what encloses the entire arm?

Back 9

the brachial fascia

Front 10

Name the muscles of the arm and where they are located

Back 10

anterior:biceps brachii
coracobrachialis
brachialis

(flexors)
posterior:Triceps (extensor)

Front 11

which head of the biceps is the medial head? what does it look like?

where does it originate?

Back 11

the short head of the biceps brachii.

actually looks like the longest!

originates from the corachoid process=curved process arising from the upper neck of the scapula and overhanging the shoulder joint.

Front 12

what traverses the bicipital groove?

where does it originate?

Back 12

the long head of the biceps

origin at the supragenoid tubercle of the scapula

Front 13

the biceps brachii inserts on 2 spots. name them

Back 13

the radial tuberosity and the bicipital aponeurosis (tendon-like insertion into the medial antebrachial fascia)

Front 14

why is the bicep considered a flexor of both the elbow and shoulder joint?

Back 14

because it crosses both of the joints. strong elbow. weak shoulder.

Front 15

coracobrachialis originates where/with what other muscles?

inserts where?

what is it's hallmark?

Back 15

the coracoid process along with the short head of the biceps brachii

inserts anterior, midway aspect of of humerus

pierced by the musculcutaneous nerve.

Front 16

the brachialis muscles inserts where? origates where?

Back 16

inserts on cornoid process of ulna.

origin: distal anterior portion of the humurus. strong flexor of elbow.

Front 17

What is the bony promience at the end of the elbow called?

Back 17

the olecranon process of the ulna

Front 18

Name the 3 heads of the triceps.

where do they insert?

what are they used for?

Back 18

long head (most medial-intersects with teres major and minor)

the lateral head (inserts just superior to the radial groove of the humerus)

the medial head (deep to the lateral and long heads, inserts just below radial groove of the humerus)

all fuse into the tendon of the olecranon of the ulna

all strong extendors

Front 19

what runs through the radial groove of the humerus?

what is the clinical application of what runs through the radial groove?

Back 19

the radial nerve and deep artery of the arm

fracture at midpoint of shaft of humerus will damage this nerve/artery because directly opposed to the bone.

Front 20

flexion of the shoulder joint is by

Back 20

biceps brachii and coracobrachialis (both weak)

Front 21

extension of the shoulder joint is by

Back 21

long head of the triceps (weak)

Front 22

flexion of the elbow joint is by what?

Back 22

the brachialis and the biceps brachii (both strong)

Front 23

extension of the elbow joint is by what?

Back 23

triceps brachii (strong)

Front 24

supination of the forearm joint

Back 24

biceps brachii

Front 25

what does the musculotaneous nerve innervate?

Back 25

innervates the 3 anterior muscles in the anterior department (coracobrachialis, brachialis, biceps brachii)

Front 26

what does the radial nerve innervate?

Back 26

the three heads of the triceps brachii

note: there is a small portion of the brachialis that goes posterior=radial nerve

Front 27

the musculocutaneous nerve pentrates through what muscle?

what does it pass between?

becomes _____ by the piercing thru the ____ and changes its name to _____

Back 27

the coracobrachialis muscle

passes btw the brachialis brachii (lies anterior and laterally) and the brachialis (lies posterior and medially)

the becomes cutaneous by piercing thru the fascia where it changes its name to the lateral antebrachial cutaneous nerve-crosses laterally to the lateral border of biceps)

Front 28

what cervical vertebrae does the musculocutaneous nerve stem from

Back 28

C5, C6, C7

Front 29

The radial nerve enters the ____ compartment of the arm, spirals around the ______ and is accompanied by _______.

it then runs pierces the ________ above the elbow and then enters the ____ compartment

Back 29

radial nerve enters the posterior compartment of the arm, spirals around around in the radial groove and is accompanied by the deep brachial artery (lateral and medial collateral arteries)

it then runs and pierces the lateral intermuscular septum and enters the anterior compartment next to the cubital fossa

Front 30

cutaneous nerves can carry more than one dermatome. true or false?

Back 30

true.

Front 31

what do the ulnar nerve and median nerve innervate in the brachium?

Back 31

nothing! there are running to the forearm. don't innervate anything in the brachium.

Front 32

the anterior compartment of the brachium is supplied by what artery

Back 32

the brachial artery (duh!)

Front 33

what is the name of the artery that spirals around with the radial nerve and where does it branch from?

Back 33

the deep brachial artery and it braches from the brachial artery

Front 34

at the cubital fossa, the brachial artery divides into the _____ and ____ arteries

Back 34

ulnar and radial (another easy one!)

Front 35

what are collateral and recurrent arteries? where do they branch from in term of the elbow?

Back 35

collateral and recurrent branches form an anastomosis around the elbow.

collateral branch from the profunda brachii and brachial arteries and join with the recurrent arteries that stem from the radial and ulnar arteries

Front 36

boundaries of the cubital fossa

Back 36

1) promimal border=imaginary line btw the lateral and medial epicondyles
2) lateral border=brachioradialis muscle
3)medial border=protonator teres muscle
4)Roof=skin, fascia and bicipital aponeurosis

Front 37

contents of the cubital fossa

Back 37

T.A.N.=brachii Tendon
brachial Artery, and median Nerve

lateral to medial orientation=tendon, artery, nerve

Front 38

what is deep to the cubital fossa?

Back 38

radial nerve (with its deep branch), and beginnings of radial and ulnar arteries

Front 39

what is the floor of the cubital fossa?

Back 39

the supinator muscle, and brachialis muscle (medially)

Front 40

the cephalic vein drains blood from the ____ side of the arm

Back 40

lateral

Front 41

the basilic vein forms on ______ and continues superiorly until it pierces _______ then up the ____ side of the brachium

Back 41

the palm of the hand and continues superiorly until it pierces the deep fascia, then up the medial side of the brachium

Front 42

what joins the medial and cephalic veins?

Back 42

the median cubital vein

Front 43

where do the lymph vessels of the lateral side of the brachium drain into?

Back 43

drain into the intraclavicular nodes which then drain into the nodes of the axilla

Front 44

where do the lymph vessels of the medial side of the brachium drain into?

Back 44

directly into the lateral nodes axillary nodes (along the axillary vein) or into the supratrochlear nodes before going into lateral nodes

Front 45

describe biceps tendenitis. what if it tears?

Back 45

the long head of the biceps passes thru the bicipital groove, where there isn't a lot of room, excessive use and wear/tear causes inflammation and tenderness (baseball and tennis)

if it tears=popeye syndrome

Front 46

dislocation of the long head of the biceps. how does it happen and how can you test for it?

Back 46

the transverse humeral ligament (which usually covers the long head of the triceps) tears=>lack of stability of long head of biceps, and long head dislocates out of bicipital groove

test by yergason test=pulling and pushing down (lateral rotation and extension) of patient's arm asking them to resist motion. tendon of long head of biceps will pop out=OUCH!