Question

multiple choice question
the ______ plexuses give rise to nerves that innervate the upper limbs.

○ cervical
○ thoracic
○ brachial

Explanation:

1. Recall the function of each plexus:

• Cervical plexuses innervate neck, shoulder, and parts of head/chest.
• Thoracic plexuses (intercostal nerves) innervate thoracic wall/abdomen.
• Brachial plexuses form nerves that supply the upper limbs (arms, hands, etc.).

1. Match the description (nerves for upper limbs) to the correct plexus. The brachial plexus is responsible for innervating the upper limbs.

Answer:

C. brachial