Which of the following sets of terms could be used in a description of the peripheral nervous system?
A. Motor neurons and sensory neurons
B. Brain and spinal cord
C. Motor neurons and brain
D. Sensory neurons and spinal cord
I need help in this
Peripheral does not include brain, or spinal cord. This is too easy.
To determine the correct answer, we need to understand what the peripheral nervous system (PNS) is. The PNS is the part of the nervous system that is outside of the brain and spinal cord. It consists of all the nerves and ganglia (collections of neuron cell bodies) that carry information to and from the central nervous system (CNS).
Now, let's analyze each answer choice to see which terms could be used to describe the peripheral nervous system:
A. Motor neurons and sensory neurons: Motor neurons are responsible for transmitting signals from the CNS to the muscles and organs, while sensory neurons carry signals from sensory receptors to the CNS. Both motor and sensory neurons are part of the PNS, so this answer choice is correct.
B. Brain and spinal cord: The brain and spinal cord are part of the CNS and not part of the PNS, so this answer choice is incorrect.
C. Motor neurons and brain: As mentioned earlier, motor neurons are part of the PNS, but the brain is part of the CNS. Therefore, this answer choice is incorrect.
D. Sensory neurons and spinal cord: Similarly to answer choice A, sensory neurons are part of the PNS, and the spinal cord is part of the CNS. Therefore, this answer choice is correct.
In conclusion, the correct set of terms that could be used in a description of the peripheral nervous system is A) Motor neurons and sensory neurons.