Muscles Of The Posterior Forearm

Muscles Of The Posterior Forearm

Question 1. Give the origin and insertion of superficial muscles on the back of forearm.
Answer.

Question 2. Give the origin, insertion, nerve supply and actions of the brachioradialis.
Answer.

Brachioradialis Origin

Upper two-third of the lateral supracondylar ridge of the humerus.

Brachioradialis Insertion

Lateral aspect of lower end of radius just above its styloid process.

posterior forearm muscles

Brachioradialis Nerve supply

Radial nerve (C5, C6).

Brachioradialis Actions

• Flexion of the elbow in the midprone position as required when carrying the apron over the shoulder.
• Actively involved in alternate movements of flexion and extension of elbow, acting like a shunt muscle.
• It also helps in both supination and pronation.