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Multiple Choice
Which type of nerves carries signals from the brain or spinal cord to skeletal muscles?
A
Motor nerves
B
Interneurons
C
Autonomic nerves
D
Sensory nerves
Verified step by step guidance
1
Begin by understanding the basic function of each type of nerve mentioned in the problem. Motor nerves are responsible for transmitting signals from the central nervous system (CNS) to muscles, causing them to contract.
Interneurons are primarily involved in communication within the CNS, connecting sensory and motor pathways, but they do not directly carry signals to muscles.
Autonomic nerves control involuntary functions such as heart rate and digestion, and they primarily target smooth muscles and glands, not skeletal muscles.
Sensory nerves carry signals from sensory receptors to the CNS, allowing the brain to process information about the environment, but they do not send signals to muscles.
Conclude by identifying that motor nerves are the ones that carry signals from the brain or spinal cord to skeletal muscles, enabling voluntary movement.