Muscle Attachment Of Ulna

Question 1

What is the insertion point for the Triceps muscle?

Answer 1

Posterior part of superior surface of olecranon process

The Triceps muscle acts as an extensor.

Question 2

What is the role of the Brachialis muscle?

Answer 2

Flexor

It inserts on the anterior surface of the coronoid process.

Question 3

Where does the Anconeus muscle insert?

Answer 3

Lateral surface of olecranon process

The Anconeus acts as an extensor.

Question 4

How many muscles originate from the ulna?

Answer 4

8 muscles

This includes 1 supinator, 2 pronators, 3 for fingers, and 2 for thumb.

Question 5

What is the origin of the Supinator muscle?

Answer 5

Lateral surface of coronoid process and from supinator crest

It originates from the ulna and inserts to the radius.

Question 6

Where does the Pronator teres originate?

Answer 6

Medial aspect of anterior surface of coronoid process

This muscle assists in pronation.

Question 7

What is the relationship between the FDS and the Pronator teres?

Answer 7

FDS is just above Pronator teres

FDS stands for Flexor Digitorum Superficialis.

Question 8

Where does the FDP originate?

Answer 8

Upper 3/4th of anterior surface of ulna and medial surface of ulna

FDP stands for Flexor Digitorum Profundus.

Question 9

What is the insertion point for the Abductor pollicis longus?

Answer 9

Posterior surface of ulna

This muscle is involved in thumb abduction.

Question 10

Where does the Extensor pollicis longus insert?

Answer 10

Posterior surface of ulna

This muscle extends the thumb.

Question 11

What is the location of the Extensor indicis?

Answer 11

Lowermost part of posterior surface of ulna

This muscle extends the index finger.