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Multiple Choice
The autonomic division of the peripheral nervous system (PNS) regulates the activity of which of these?
A
Skeletal muscles
B
Smooth muscles
C
Central nervous system
D
Bone tissue
Verified step by step guidance
1
Understand the role of the autonomic division of the peripheral nervous system (PNS). It is responsible for regulating involuntary functions in the body, such as heart rate, digestion, and respiratory rate.
Identify the types of muscles in the human body: skeletal muscles, smooth muscles, and cardiac muscles. Skeletal muscles are under voluntary control, while smooth and cardiac muscles are under involuntary control.
Recognize that the autonomic nervous system (ANS) is part of the PNS and specifically controls involuntary actions, which include the regulation of smooth muscles found in organs like the intestines and blood vessels.
Differentiate between the central nervous system (CNS) and the peripheral nervous system (PNS). The CNS consists of the brain and spinal cord, while the PNS includes all the nerves outside the CNS, including the autonomic division.
Conclude that the autonomic division of the PNS does not regulate skeletal muscles or bone tissue, as these are not involved in involuntary control. Instead, it regulates smooth muscles, which are responsible for involuntary movements in various organs.