The Elbow and Radio-Ulnar Joints

Question 1

what type of joint is the elbow joint?

Answer 1

synovial hinge

Question 2

label features of the elbow joint

Answer 2

Question 3

which ligament holds the ulnar in place?

Answer 3

ulnar collateral ligament

Question 4

which ligament holds the head of the radius?

Answer 4

annular ligamnet

Question 5

which muscles cause flexion of the elbow joint?

Answer 5

1. biceps brachii
2. bradchioradialis
3. brachialis

Question 6

which muscles cause extension of the elbow joint?

Answer 6

1. triceps brachii
2. anconeus

Question 7

what causes Students elbow (olecranon bursitis)?

Answer 7

• the subcutaneous olecranon bursa can be damaged through repeated excessive pressure and friction.
• this inflammation (commonly occuring when you’re leaning on them studying) is called olecranon bursitis.

Question 8

what causes tennis elbow (lateral epicondylitis)?

Answer 8

• repetitive overuse of the muscles in the forearm causes inflammation of the muscle tendons attached to the lateral epicondyle of the elbow > lateral epicondylitis

Question 9

what causes golfers elbow (medial epicondylitis)?

Answer 9

• repetitive overuse of forearm muscle causes inflammation of the muscle tendons attached to the medial epicondyle of the elbow > medial epicondylitis.

Question 10

what type of joints are the proximal and distal radio-ulnar joints?

Answer 10

synovial pivot > allows both supination and pronation of the forearm

Question 11

The proximal radio-ulnar joint is supported by another ligament arising at the elbow – this keeps the head of the radius in place.
What is the name of this ligament?

Answer 11

annular ligament

Question 12

what are the muscles involved with supination at the radio-ulnar joint?

Answer 12

1. biceps brachii
2. supinator muscle

Question 13

what are the muscles involved with pronation at the elbow joint?

Answer 13

1. pronator teres
2. pronator quadratus