by alex
The brachial plexus is a complex network of nerves that play a crucial role in the movement and sensation of the upper limb. Understanding its anatomy and function is essential for medical professionals and students alike. This quiz will challenge your knowledge on the structure, function, and clinical aspects of the brachial plexus. Sharpen your skills and see how well you understand this vital component of the nervous system.
Brachial Plexus Quiz Questions Overview
1. Which spinal nerve roots contribute to the brachial plexus?
C3-C7
C5-T1
T1-T5
C1-C4
2. Which nerve is a direct branch of the lateral cord of the brachial plexus?
Axillary nerve
Radial nerve
Musculocutaneous nerve
Ulnar nerve
3. Which muscle is primarily innervated by the axillary nerve?
Biceps brachii
Deltoid
Triceps brachii
Pectoralis major
4. What is the primary function of the median nerve?
Flexion of the forearm
Extension of the forearm
Flexion of the wrist and fingers
Extension of the wrist and fingers
5. Which nerve is affected in carpal tunnel syndrome?
Ulnar nerve
Radial nerve
Median nerve
Axillary nerve
6. Which of the following muscles is innervated by the ulnar nerve?
Flexor carpi radialis
Flexor carpi ulnaris
Brachioradialis
Supinator
7. Which nerve innervates the triceps brachii muscle?
Musculocutaneous nerve
Radial nerve
Median nerve
Ulnar nerve
8. Which part of the brachial plexus is formed by the union of the C8 and T1 roots?
Upper trunk
Middle trunk
Lower trunk
Posterior cord
9. Which nerve is responsible for the sensation of the lateral forearm?
Radial nerve
Median nerve
Ulnar nerve
Musculocutaneous nerve
10. Which nerve is commonly injured in a shoulder dislocation?
Median nerve
Ulnar nerve
Axillary nerve
Radial nerve
