Arm and elbow

Question 1

How many joints is the elbow made up of? and what are they

Answer 1

3 joints: Humero-ulnar, radio-humeral, proximal radio ulnar joint

Question 2

How many compartments does the arm have and what are they?

Answer 2

2: posterior and anterior

Question 3

What is the posterior compartment innervated by?

Answer 3

Radial Nerve

Question 4

What is the anterior compartment innervated by?

Answer 4

Musculotaneous nerve

Question 5

2 anterior muscles

Answer 5

Biceps brachii and brachiallis

Question 6

posterior muscle

Answer 6

Triceps brachii

Question 7

What type of joint is humero-ulnar joint and what movements

Answer 7

Hinge:Flex/Extend

Question 8

What type of joint is radio- humeral joint: what movements

Answer 8

Hinge: Flex/Extend

Question 9

What type of joint is proximal radio ulnar joint and movements

Answer 9

pivot joint- pronation/ supination

Question 10

What type of joint is distal radio unar joint and what movements

Answer 10

pivot, pronation/ supination

Question 11

O, I, INN, F of Biceps Brachii

Answer 11

O: L head: supraglenoid tubercle of scapula.
S. Head: Coracoid process
I: Radial tuberosity
Inn: anterior compartment of arm
F: elbow flexion, supination of forearm

Question 12

O (2), I, INN, F of Brachialis

Answer 12

O: Anterior aspect of humerus
I: Tuberosity of ulna
INN: anterior compartment of arm
F: elbow flexion

Question 13

O (3), I, INN, F of Triceps Brachii

Answer 13

O: L head: infraglenoid tubercle of scapula
Medial Head: Posterior surfaceof humerus
Lateral head: Posterior surface of humerus
I: olecranon
Inn: posterior compartment of arm
F: elbow extension