Multiple Choice
In human anatomy, what structures make up the central nervous system (CNS)?
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12. The Central Nervous System
Introduction to the Central Nervous System
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Which structure is a major organ of the central nervous system (CNS)?
A
Brain
B
Thyroid gland
C
Skeletal muscle
D
Heart
Verified step by step guidance1
Step 1: Understand the central nervous system (CNS) components. The CNS consists primarily of the brain and spinal cord, which are responsible for processing and transmitting neural information.
Step 2: Identify the options given: Brain, Thyroid gland, Skeletal muscle, and Heart.
Step 3: Recognize that the brain is a major organ of the CNS, as it controls most functions of the body and mind.
Step 4: Note that the thyroid gland is part of the endocrine system, skeletal muscle is part of the muscular system, and the heart is part of the cardiovascular system, so none of these are CNS organs.
Step 5: Conclude that the brain is the correct answer because it is a primary organ within the central nervous system.
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