Involuntary Muscles Are Controlled by the ________ Nervous System

question 260

Multiple Choice

Involuntary muscles are controlled by the ________ nervous system.

• A) somatic
• B) autonomic
• C) sympathetic
• D) parasympathetic

---

Definitions:

Ectoderm

Cells of the inner cell mass of the embryo that develop into the outer surface of the skin, the nails, part of the teeth, the lens of the eye, the inner ear, and the central nervous system.

Embryonic Period

The period that extends from the time the organism becomes attached to the uterus until the end of the 8th week of pregnancy, when all the major organs have taken primitive shape.

Cell's Environment

The surrounding conditions and factors that interact with and influence a cell's function and survival.

Genes

The segments on a DNA molecule that act as hereditary blueprints for the organism’s development.