Muscle
Pronator teres
Pronates the forearm
High-yield
Median nerve passes between its humeral and ulnar heads - site of pronator teres syndrome.
Overview
A superficial anterior forearm muscle that pronates the forearm; the median nerve passes between its two heads.
Reference facts
- Origin
- Humeral head: medial epicondyle (common flexor origin). Ulnar head: coronoid process of the ulna
- Insertion
- Middle of the lateral surface of the radius
- Action
- Pronates the forearm and assists elbow flexion
- Innervation
- Median nerve (C6, C7)
- Blood supply
- Ulnar and radial arteries
Frequently asked questions
What does the pronator teres do?
The pronator teres pronates the forearm and assists elbow flexion.
What nerve innervates the pronator teres?
The pronator teres is innervated by the median nerve (C6, C7).
Where does the pronator teres attach?
Origin: Humeral head: medial epicondyle (common flexor origin). Ulnar head: coronoid process of the ulna. Insertion: Middle of the lateral surface of the radius.
What is the blood supply of the pronator teres?
The pronator teres is supplied by the ulnar and radial arteries.