Brachium (Outline 15)

Question 1

Tip on left or right arm?

Answer 1

Whatever the side of radius on is that side of the arm (radius is outside of the ulna)

Question 2

Distinguish betwee radius and ulna?

Answer 2

The proximal end of ulna is larger than the radius

The distal end of ulna is smaller than the radius

Question 2

Name for brown color part? Function

Answer 2

Trochlear notch

articulate with the trochlea of hummerus

Question 3

Name for Blue Color. FunctioN?

Answer 3

Coronoid process of ulna

Fit with coronoid fossa of humerus when elbow flexed

Question 4

Name for the pink color. Function?

Answer 4

Head of the radius

articulate surface with capitulum of humerus

Question 5

Name for Green COlor. Function?

Answer 5

Radial Tuberosity of Ulna

Insertion of bicep tendons

Question 6

Name for yellow color. Function?

Answer 6

Sytloid process

Question 7

Name for #13 (black pen). Function?

Answer 7

Tuberosity of ulna

Brachialis

Question 8

Name for the pencil color (right corner). Function?

Answer 8

Radial notch

articulation surface between head of radius and ulna

Question 9

Name for #8 lower right corner. Function?

Answer 9

dorsal tubercle of radius

pully for extensor pollicis longus

Question 10

How is brachium muscle divided? By what?

Answer 10

Anterior/Posterior Compartment

Deep fascia

Question 11

What action does anterior brachium do? Posterior?

Answer 11

Flexion

Extension

Question 12

What muscles are in anterior compartment?

Answer 12

Biceps

Brachialis

Question 13

Muscles in posterior department?

Answer 13

3 head of triceps

anconeus

articularis cubiti

Question 14

Blood supply for anterior brachium? What is it equivalent in leg?

Answer 14

Brachial A

femoral A

Question 15

BS for post brachium? Equivalent to Leg?

Answer 15

brachial profunda A

femoral profunda A

Question 16

NS for anterior brachium?Posterior brachium

Answer 16

musculocutaneous

Radial N

Question 17

What division is musculocutaneous N in? radial N?

Answer 17

Anterior

Posterior

Question 18

Origin of bicep brachii

Answer 18

Short head: coracoid process of scapula

Long head: Supraglenoid of scapula

Question 19

Insertion of bicep brachiii

Answer 19

Tendons: radial tuberosity of radius

Bicep aponeurosis: deep fascia on ulna

Question 20

Action of bicep brachii

Answer 20

Both: Supination of forearm/ flexion of elbow

Short head: flexion of shoulder

Long head: abduction of externally rotated arm

Question 21

BS for bicep brachii? NS?

Answer 21

brachial artery

Musculocutaneous

Question 22

OIANB of coracobrachialis

Answer 22

Tip of coracoid process of scapula

middle 1/3 of medial humerus

flexion/ adduction of shoulder

Musculocutaneous

Brachial

Question 23

OIANB of brachilis

Answer 23

Lower half of anterior humerus

Ulnar Tuberosity/ Coranoid Process of Ulna

Flexion of Elbow

Musculocutaneous

Brachial

Question 24

Origin of tricep brachii

Answer 24

Long head: infraglenoid tubercle of scapula Lateral head: posterior humerus above spiral groove Medial: below spiral groove

Question 25

IANB of triceps brachii

Answer 25

Olecranon process of ulna Extension of elbow/ Extension of shoulder (long head) radial N brachial profunda

Question 26

What ligament that hold tendon of long head bicep? What part of joint it is in?

Answer 26

transverse ligament glenohumeral joint

Question 27

Why brachialis cant supine/propine the forearm?

Answer 27

because it insert on ulnar, which is fixed

Question 28

When the arm is in propination and you do bicep curl, what happen?

Answer 28

the forearm will automatically supine

Question 29

What is the workhorse in anterior brachium? Post brachium?

Answer 29

Brachialis Medial head of triceps brachii

Question 30

articularis cubiti function?

Answer 30

pull the elbow joint capsule out of the way for medial head of triceps brachii

Question 31

What are branches of brachial a?

Answer 31

Brachial profunda superior ulnar collateral inferior ulnar collateral Nutrient A

Question 32

Contents of brachil profunda?

Answer 32

anterior or radial collateral posterior or middle collateral

Question 33

Where does the brachial profunda terminate?

Answer 33

at the elbow

Question 34

Where does superior ulnar collateral travel? inferior ulnar collateral

Answer 34

posterior of elbow anterior of elbow

Question 35

What is the order of muscle of anterior brachii that musculocutaneous innervate?

Answer 35

Coracobrachial/ Biceps/ Brachialis

Question 36

Lateral antebrachial cut

Answer 36

the merge nerves of biceps brachiii and brachialis

Question 37

Where does the lateral antebrachial cutaneous turn into?

Answer 37

laterl cutaneous nerve of forearm

Question 38

How does the median N travel relative to brachial artery?

Answer 38

Upper part of brachium it travel laterally and lower part of brachium it travel medially

Question 39

Does median N travel post or anterior compartment?

Answer 39

anterior compartment

Question 40

How does ulnar N travel relatively to brachial a?

Answer 40

upper brachium it travel in anterior brachium then posterior brachium as it pass by the brachial a

Question 41

Does ulnar N travel medial or lateral relative to brachial artery?

Answer 41

medially

Question 42

Where does the radial n travel? and with what artery? Pathway of its travel?

Answer 42

in spiral groove with brachial profunda artery posterior(before elbow) -\> lateral epicondyle(anterior) -\> posterior(deep branch) and anterbrachial (superficial branch)

Question 43

what are cutaneous branches of radial in brachium?

Answer 43

lower lateral cut post brachial post antebrachia

Question 44

Where does the radial N travel anterior compartment? What does it innervate?

Answer 44

lateral epicondyle brachioradialis/ ECRL (extensor carpi radialis longus)

Question 45

What cutaneous nerve of radial N travel antebrachial?

Answer 45

superficial branch

Question 46

What cutaneous N of radial N that travel posteriorly after elbow?

Answer 46

deep branch