Branches of the Ulnar & Median Nerves [in Forearm]

This video tutorial covers the median and ulnar nerves, focusing on their branches and functions. It begins with an overview of the radial nerve, then delves into the ulnar nerve, highlighting its innervation of the flexor carpi ulnaris and flexor digitorum profundus. The tutorial then shifts to the median nerve, discussing its direct motor branches and the anterior interosseous nerve. Key muscles innervated by these nerves are explained, including their roles in wrist flexion, pronation, and digit flexion.

Which nerve is the most lateral among the radial, ulnar, and median nerves?

• Ulnar nerve

• Radial nerve

• Anterior interosseous nerve

• Median nerve

What is the primary function of the flexor carpi ulnaris muscle?

• Forearm pronation

• Thumb flexion

• Wrist flexion and ulnar deviation

• Wrist extension

Which digits are primarily affected by the ulnar nerve's innervation of the flexor digitorum profundus?

• Digits 3 and 4

• Digits 4 and 5

• Digits 2 and 3

• Digits 1 and 2

Which nerve is located between the radial and ulnar nerves?

• Radial nerve

• Median nerve

• Anterior interosseous nerve

• Ulnar nerve

Which muscle is NOT directly innervated by the median nerve?

• Palmaris longus

• Flexor carpi radialis

• Pronator teres

• Flexor pollicis longus

What is the primary function of the flexor pollicis longus muscle?

• Extension of the thumb

• Flexion of the thumb

• Pronation of the forearm

• Flexion of the wrist

Which nerve innervates the pronator quadratus muscle?

• Radial nerve

• Median nerve

• Ulnar nerve

• Anterior interosseous nerve