Lecture 15

Question 1

superior part of the arm

Answer 1

Communicates with the axilla

Question 2

Inferior part of the arm

Answer 2

number of important structures pass between am and forearm through cubital fossa

Question 3

what is an intermuscular septa

Answer 3

Pass from each of the humerus to deep foscia that surrounds the limb

Question 4

Anterior compartment of the arm

Answer 4

Contains muscles that flex the arm

innervated by musculocutaneous nerve

Question 5

Posterior compartment of the arm

Answer 5

Has muscles that extend the elbow joint

innervated by the radial nerve

Question 6

Brachilias : Origin

Answer 6

Anterior aspect of the lower half of humerus

Question 7

Insertion of Brachialis

Answer 7

coronoid process of ulna

Question 8

Innervation of brachiallis

Answer 8

musclocutionoeus nerve

Question 9

function of brachiallis

Answer 9

Flexor of forearm at elbow

Question 10

Biceps brachii: Origin

Answer 10

long: supraglenoid tubercle
short: apex of coronoid process

Question 11

Biceps brachii: Insertion

Answer 11

Radial tubercle

Question 12

Biceps brachii: Innervation

Answer 12

Muscleocutanoues nerve

Question 13

biceps brachii: Function

Answer 13

Flexor chief supinator accessory flexor

Question 14

Triceps brachii: Origin

Answer 14

LONG: infraglenoid
MEDIAL: lower half of posterior surface of humerus
LATERAL: Upper half of posterior surface of humerus

Question 15

Triceps brachii: Insertion

Answer 15

Olecranon process of unla

Question 16

Triceps brachii: innervation

Answer 16

Radial nerve

Question 17

Triceps brachii: Function

Answer 17

Extentionof forearm

Question 18

Aneoneus: origin

Answer 18

Lateral epicondyle of humerus

Question 19

Aneonues: Insertion

Answer 19

Olecranon process and posterior surface of ulna

Question 20

Aneonues: Innervation

Answer 20

Radial nerve

Question 21

Aneonues: Function

Answer 21

Abductor

Question 22

MASULOCATANEOUS NERVE: function

Answer 22

has a motor innervation which helps with the flexor compartment

has a sensory innervation to skin on lateral surface of the arm

Question 23

Musculocutaneous nerve: contents

Answer 23

leaves axilla and enters the arm by passing through coracobrachialis

passes inferiorly between biceps brachii and brachialis

Emerges lateral to tendon of biceps brachii continues as lateral cutaneous nerve

Question 24

Radial nerve : Functions

Answer 24

Motor: mascular branch to muscles of posterior compartment

sensory:skin on the posterior deepest of arm

Question 25

Radial nerve: content

Answer 25

Largest terminal branch of posterior cord

in arm runs in the radial groove directly next to bone

accompanied by profuda brachii artery

Question 26

brachial artery

Answer 26

begins at lower border of teres major as continuation of axillary artery

main arternal supply of the arm and is located in anterior compartment

terminates opposite the neck of radius by dividing into radius and ulnar arties

Question 27

veins

Answer 27

Receives 2 tributaries

paired brachial veins accompany the brachial artery