The Sympathetic Nervous System

question 91

Multiple Choice

The sympathetic nervous system

• A) is always excitatory.
• B) innervates only tissues concerned with protecting the body against challenges from the outside environment.
• C) dominates in fight-or-fight situations.
• D) is part of the somatic nervous system.
• E) is part of the afferent division of the peripheral nervous system.

---

Definitions:

Cell Membrane

The cell membrane is a biological membrane that separates the interior of all cells from the outside environment, providing structural support and regulating the movement of substances in and out of the cell.

Nutrients

Substances obtained from food that are essential for the body to function and maintain health.

Oxygen

A chemical element (O) essential for cellular respiration in living organisms and a component of the earth's atmosphere.

Maternal Blood

Blood circulating in a pregnant woman that provides nutrients and oxygen to both the mother and the fetus.