Chapter 11, Problem 1RAC

The part of the nervous system that controls smooth muscle, cardiac muscle, and glands is the

1. Somatic nervous system.
2. Autonomic nervous system.
3. Skeletal division.
4. Sensory division.

Summary Introduction

Introduction:

The nervous system is separated into two parts: the central nervous system (CNS) and the peripheral nervous system (PNS). The peripheral nervous system (PNS) has two divisions: the sensory division and the motor division.

Answer to Problem 1RAC

The correct answer is option (b) autonomic nervous system.

Explanation of Solution

Explanation/justification for the correct answer:

Option (b) autonomic nervous system. The autonomic nervous system is the unconscious branch of the motor division. It controls activities such as contractions of smooth muscle, cardiac muscle, and secretion by particular glands in an unconscious manner. So, the correct answer is option (b).

Explanation for incorrect answer:

Option (a) somatic nervous system. The somatic nervous system refers to the voluntary branch of the motor division. It controls the contraction of skeletal muscle. So, this is an incorrect answer.

Option (c) skeletal division. The skeletal division is not part of the nervous system. It separates the skeletal system into two parts: axial skeleton and appendicular skeleton. So, this is an incorrect answer.

Option (d) sensory division. The sensory division is part of the peripheral nervous system. It conveys electrical signals from specific receptors in the body to the central nervous system. So, this is an incorrect answer

Conclusion

The autonomic nervous system controls smooth muscle, cardiac muscle, and glands. Hence, the correct answer is option (b) autonomic nervous system.