Multiple Choice
Which part of the body is primarily controlled by the primary motor cortex of the right cerebral hemisphere?
12. The Central Nervous System
Introduction to the Central Nervous System
Multiple Choice
In human anatomy, the central nervous system (CNS) consists of which structures?
A
The brain and spinal cord
B
The heart and blood vessels
C
The sympathetic and parasympathetic divisions
D
Cranial nerves and spinal nerves
Verified step by step guidance1
Step 1: Understand the definition of the central nervous system (CNS). The CNS is the part of the nervous system responsible for processing and integrating information received from the body and coordinating activity.
Step 2: Recall the two main anatomical structures that make up the CNS. These are the brain, which is the control center for the body, and the spinal cord, which transmits signals between the brain and the rest of the body.
Step 3: Differentiate the CNS from the peripheral nervous system (PNS). The PNS includes nerves outside the brain and spinal cord, such as cranial nerves and spinal nerves, which are not part of the CNS.
Step 4: Recognize that the heart and blood vessels are components of the cardiovascular system, not the nervous system, so they are not part of the CNS.
Step 5: Understand that the sympathetic and parasympathetic divisions are subdivisions of the autonomic nervous system, which is part of the PNS, and thus not included in the CNS.
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