4.1.4. The Supinator Muscle

Question 1

Where is the Supinator Muscle located?

Answer 1

In the Floor of the Cubital Fossa

Question 2

How many heads does the Supinator Muscle have?

Answer 2

2

Question 3

What passes between the 2 Heads of the Supinator Muscle?

Answer 3

Deep Branch of the Radial Nerve

Question 4

Where does the Lateral-Most Head of the Supinator Muscle Originate from?

Answer 4

Lateral Epicondyle of the Humerus

Question 5

Where does the Medial-Most Head of the Supinator Muscle Originate from?

Answer 5

Posterior Surface of the Ulna

Question 6

Where does the Supinator Muscle attach distally?

Answer 6

Posterior Surface of the Radius

Question 7

What is the function of the Supinator Muscle?

Answer 7

Supination of the Forearm

Question 8

What is the innervation of the Supinator Muscle?

Answer 8

Deep Branch of the Radial Nerve

Question 9

What does the Supinator Muscle envelope?

Answer 9

1. Neck of the Radius
2. Proximal Part of the Shaft of the Radius

Question 10

What Part of the Radius is not enveloped by the Supinator Muscle?

Answer 10

The Medial Side