Axilla Brachial Plexus And Anterior Arm

Question 1

What is axilla

Answer 1

anatomical term for armpit

Question 2

Anterior and posterior border of axilla

Answer 2

anterior pec major and minor

Posterior subscapularis, there’s major and latissimus dorsi

Question 3

Lateral and medial border of axilla

Answer 3

lateral upper humerus

Medial wall serratus anterior and chest wall

Question 4

Apex and base of axilla

Answer 4

apex, first rib clavicle and scapula

Base, skin and fascia

Question 5

What does the axilla contain

Answer 5

lymph nodes
Axillary artery
Axillary vein
Brachial plexus

Question 6

Role of axillary lymph nodes

Answer 6

filter lympthatic fluid that has drained from upper limb

Enlargement can be indicator for breast cancer

Question 7

When does the subclavian artery become the axillary artery

Answer 7

when it crosses the lateral border of the first rib

Question 8

When does the axillary artery become the brachial artery

Answer 8

when it crosses the inferior border of teres major

Question 9

Largest tributaries of the the axillary vein

Answer 9

cephallic vein

Basilic veins

Question 10

Purpose of brachial plexus

Answer 10

motor and sensory innervation to upper limb

Question 11

Trunk formation of the brachial plexua

Answer 11

c5+c6 combine to form the superior trunk
C7 as the middle trunk
C8 as the inferior trunk

Question 12

What does each trunk of brachial plexus divide into

Answer 12

anterior and posterior division

Question 13

What makes up the lateral cord

Answer 13

anterior divisions of the superior and middle trunks

Question 14

What makes up the posterior cord

Answer 14

posterior divisions of all trunks combine

Question 15

What makes up the medial cord

Answer 15

anterior division of the inferior trunk

Question 16

What do the posterior chords branch into

Answer 16

axillary and radial nerve

Question 17

What does the medial cord branch into

Answer 17

the ulnar and median nerve

Question 18

What does the lateral cord branch off into

Answer 18

median nerve

Question 19

Innervation of axillary nerve

Answer 19

deltoid trees minor and small region of skin on upper arm

Question 20

Innervation of radial nerve

Answer 20

triceps

All muscles in forearm

Question 21

What is the radial nerve vulnerable to

Answer 21

mid shaft fractures of humerus

Question 22

Innervation of musculocutaneous nerve

Answer 22

Skin of forearm

Question 23

Innervation of median nerve?

Answer 23

most muscles of anterior forearm

Small muscles of the thumb

Question 24

Innervation of ulnar nerve

Answer 24

most of the small muscles in hand

Skin over medial aspect of the hand and median digits

Question 25

Three muscles of anterior arm

Answer 25

biceps brachii
Brachialis
Corocobrachialis

Question 26

Two heads of biceps brachii and their attachments

Answer 26

long and short
Long supraglenoid tubercle
Short coracoid process

Question 27

What does the coracobrachialis attach onto

Answer 27

the coracoid process of the scapula

Question 28

Three borders of the cubital fossa

Answer 28

Lateral by brachioradialis
Medial by pronator teres
Superior by imaginary line between medial and lateral epicondyles

Question 29

Innervation and blood supply to the anterior compartment of arm

Answer 29

Musculocutaneous nerve

Brachial artery

Question 30

Function of the biceps brachii

Answer 30

Flexor of elbow joint
Flexion of shoulder joint
Powerful supinator of forearm

Question 31

Contents of antecubital fossa

Answer 31

Tendon of biceps brachii
Brachial artery
Median nerve
Radial nerve