Glial Cells Have Many Functions and Scientists Are Beginning to Understand

question 262

Multiple Choice

Glial cells have many functions and scientists are beginning to understand that these cells are responsible for more than just "custodial" tasks. According to your textbook, one of the most recent discoveries about glial cells is that

• A)they collect messages from other neurons and send them on to the cell body
• B)there are over 200 types
• C)there are less glial cells than previously thought
• D)they can help modulate the amount of neurotransmitter that is released
• E)they are more important than neurons

---

Definitions:

Autonomic Nervous System

The section of the nervous system responsible for regulating automatic body functions such as heartbeat, digestive processes, and breathing rate.

Autonomic Arousal

Autonomic arousal refers to the physical responses of the autonomic nervous system to stimuli, including changes in heart rate, breathing, and sweating.

Parasympathetic Arousal

The activation of the parasympathetic nervous system, leading to relaxation and decreased heart rate.

Polygraph

A polygraph, or lie detector test, measures physiological responses to questions to determine truthfulness.