Musculus extensor indicis

The video tutorial provides an overview of the deep forearm extensors, focusing on the extensor indices muscle. It describes the muscle's location, origin, and insertion, as well as its innervation by the radial nerve. The tutorial also explains the muscle's role in extending the index finger and wrist, highlighting its importance in hand and finger joint movements.

How many muscles are there in the deep forearm extensor group?

• 3

• 4

• 6

• 5

Where is the extensor indices muscle located in relation to the extensor pollicis longus?

• Posteriorly

• Laterally

• Medially

• Anteriorly

From which structure does the extensor indices muscle originate?

• Facies medial of the radius

• Facies lateral of the radius

• Facies posterior of the ulna

• Facies anterior of the ulna

Which nerve is responsible for innervating the extensor indices muscle?

• Ulnar nerve

• Median nerve

• Musculocutaneous nerve

• Radial nerve

What movement does the extensor indices muscle facilitate in the wrist?

• Flexion

• Abduction

• Adduction

• Extension