As Isaac Reads His Textbook,he Gets More and More Drowsy

question 57

Multiple Choice

As Isaac reads his textbook,he gets more and more drowsy and is just about to fall asleep.His brain activity will most likely be characterized by ________ waves.

• A) alpha
• B) beta
• C) theta
• D) delta

---

Definitions:

Brachial Plexus

A network of nerve fibers that runs from the spine through the neck, shoulder, arm, and hand, controlling muscle movements and sensations in these areas.

Phrenic Nerve

A nerve that originates in the neck (C3-C5) and innervates the diaphragm, crucial for breathing.

Meninges

Protective membranes covering the brain and spinal cord.

Dura Mater

The outermost and toughest of the three membranes covering the brain and spinal cord.