mus. elbow

Question 1

biceps brachii

o/2 heads-2

i/2

Answer 1

o/

Long head

• supraglenoid tubercle (of scapula)

Short head

• coracoid process (of scapula)

i/

• Radial tuberosity

Fascial insertion

• bicipital aponeurosis (which links to facia components of flexor muscles of forearm)

Question 2

biceps brachii

a/3

Answer 2

a/

• Flex the elbow ~ main action
• • Shoulder flex
• Supinates forearm

Question 3

brachialis

o/1

i/2

Answer 3

o/

• (Anterior surface of) distal half of humerus

i/

• Coronoid process of ulna
• ulna tuberosity

Question 4

brachialis

a/1

Answer 4

a/

• Flex elbow

Question 5

triceps brachii

O/3 -3heads

I/1

Answer 5

o/

Long

• infra glenoid tubercle (of scapula)

Lateral

• (upper half of) posterior surface of humerus

Medial

• (lower half of ) posterior surface of humerus

i/

All heads converge into

• (tricep tendon and) insert into olecranon process

Question 6

triceps brachii

a/1 + long head 2

Answer 6

a/

All 3

• extend elbow

Long head

• adduction
• extension (of shoulder)

Question 7

brachioradialis

o/1

i/1

Answer 7

o/

• Upper 2/3 of lateral supracondylar ridge

i/

• Proximal to styloid process of radius

Question 8

brachioradialis

a/3

Answer 8

a/

• Flex elbow
• Pronate forearm (when fully supinated)
• supinate forearm (when fully pronated)

Question 9

pronator teres

o/2

i/1

Answer 9

o/

• Medial epicondyle of humerus
• Coronoid process of ulna

i/

• (Middle of) lateral surface of radius

Question 10

pronator teres

a/1 and assists

Answer 10

a/

• Pronates forearm

Assists

• flexion of elbow