Muscles of The Arm

Question 1

Describe biceps brachii ?
Head+Innervation+action

Answer 1

-Long and short
-Musclocutanoeus nerve
1-Both make supination and flextion of elbow
2-Long head stabilize the head of humerus

Question 2

NOTE

Answer 2

1. The long head
   from the supraglenoid tubercle of the scapula (within the capsule
   of the shoulder joint) (intracapsular extra-synovial).
2. The short head; from the tip of the coracoid process in common with the coracobrachialis muscle.

Question 3

Describe Coracobrachialis
Innervation+Action

Answer 3

-Musclocutanoeus nerve
-Flextion and adduction od arm

Question 4

Describe Brachialis
Innervation+Action

Answer 4

Its two parts
-Medial part Musclocutanoeus nerve
-Lateral part Radial nerve

Question 5

Describe Triceps
Nerve+Action

Answer 5

-Radial nerve
-Powerful extensor of elbow

Question 6

what is powerful(main) flexor of elbow?

Answer 6

brachialis

Question 7

what is biceps antagonist ?

Answer 7

Triceps