Arm

Question 1

3 flexor muscles of the arm

Answer 1

biceps brachii
brachialis
coracobrachialis

Question 2

Nerve innervating flexor muscles

Answer 2

Musculocutaneous

Question 3

Biceps Brachii origin

Answer 3

Long Head:
supraglenoid tubercle of scapula

Short Head:
Coracoid process of scapula

Question 4

Biceps Brachii insertion

Answer 4

• Radial tuberocity
• via bicipital aponeurosis into deep facia of the forearm

both long and short head

Question 5

Biceps Brachii action

Answer 5

supination forearm
flexion of elbow
stability of shoulder joint

Question 6

Biceps Brachii innervation

Answer 6

musculocutaneous nerve

Question 7

long head of Biceps Brachii travels

Answer 7

through intertubercular grove

• long thin tendon
• lateral to short head

Question 8

Brachialis origin

Answer 8

lower half of the anterior surface of the humerus

Question 9

Brachialis insertion

Answer 9

Coranoid process of the ulna

Question 10

Brachialis action

Answer 10

flexion at the elbow (pronated flexion)

Question 11

Brachialis innervation

Answer 11

musculocutaneous nerve

Question 12

Coracobrachialis origin

Answer 12

tip of the Coracoid Process

Question 13

Coracobrachialis insertion

Answer 13

Middle of medial aspect of humerus

Question 14

Coracobrachialis action

Answer 14

flexion at shoulder

adduction of humerus

Question 15

Coracobrachialis innervation

Answer 15

Musculocutaneous Nerve

Question 16

Posterior component of the arm

Answer 16

Tricep Brachii

Question 17

Nerve innervating extensor muscles

Answer 17

Radial Nerve

Question 18

Landmark where radial nerve travels

Answer 18

Travels down radial grove on the posterior surface of the humerus

Question 19

Tricep Brachii insertion

Answer 19

COMMON TENDON

- into olecranon process of ulna

Question 20

Tricep Brachii long head origin

Answer 20

infraglenoid tubercle of the scapula

Question 21

Tricep Brachii long head action

Answer 21

• Extension and addition of the shoulder joint

- Extension elbow

Question 22

Tricep Brachii lateral head origin

Answer 22

Posterior humerus ABOVE radial grove (mid humerus)

Question 23

Tricep Brachii lateral head action

Answer 23

Extension of elbow

Question 24

Tricep Brachii medial head origin

Answer 24

posterior humerus BELOW radial grove

Question 25

Tricep brachii medial head action

Answer 25

extension of elbow

Question 26

Tricep arterial supply

Answer 26

Deep brachial artery

Question 27

Bicep Brachii arterial supply

Answer 27

Brachial Artery