Elbow Muscles and ligaments

Question 1

Brachialis O & I / A

Answer 1

O - Anterior aspect of medial and lateral surfaces of humerus

I - Ulna tuberosity

A - Elbow flexion

Question 2

Brachioradialis O & I / A

Answer 2

O - Proximal part of lateral supracondylar ridge of humerus

I - Lateral surface of distal end of radius

A - Elbow flexion
Pronation of forearm
Supination of forearm

Question 3

Anconeus O & I / A

Answer 3

O - Lateral Epicondyle of humerus

I - Olecranon
- Proximal posterior surface of ulna

A - Elbow extension

Question 4

Supinator O & I / A

Answer 4

O - Superficial - Lateral epicondyle of humerus
- Radial collateral & Annular ligaments
Deep - Supinator crest of ulna

I - Lateral surface of radius

A - Supination of forearm

Question 5

Pronator Teres - O & I / A

Answer 5

O - Humeral head - Medial epicondyle
- Adjacent supracondylar ridge
Ulna Head - Medial side of coronoid process

I - Lateral surface - Midshaft of radius

A - Pronation of forearm

Question 6

Elbow flexion muscles

Answer 6

Brachialis
Biceps brachii
Brachioradialis

Question 7

Elbow extension muscles

Answer 7

Triceps brachii
Anconeus

Question 8

Medial (Ulna) Collateral Ligament attachments

Answer 8

Medial epicondyle of humerus

Coronoid process of ulna
Alecranon process

Question 9

Lateral (Radial) Collateral Ligament

Answer 9

Lateral epicondyle of humerus

Annular Ligament

Question 10

Annular Ligament

Answer 10

Posterior & Anterior margins of radial notch of ulna

Wraps around head and neck of radius

Question 11

Pronator Quadratus O & I / A

Answer 11

O - Lower 1/4 of the anterior surface of ulna

I - Lower 1/4 Of the anterior surface of radius

A - Forearm Pronation

Question 12

Forearm pronation muscles

Answer 12

Pronator Teres
Pronator Quadratus
Flexor carpi Radialis

Question 13

Forearm Supination Muscles

Answer 13

Supinator
Biceps Brachii