Neurons in the ________ control motor reflexes.
a. thalamus
b. spinal cord
c. parietal lobe
d. hippocampus
The central nervous system and the peripheral nervous system are the two main components of the nervous system. The brain and spinal cord of the organism make up the central nervous system. Nerve terminals that branch out from the spinal cord and go to other parts of the body make up the peripheral nervous system. A nerve cell is the fundamental anatomical and functional unit of the nervous system. The cell body, axon, and dendrites are the three components of this cell. The nerve cell's nucleus and cytoplasm are found in the cell body. The axon serves as a channel for impulse transmission, while the dendrites serve as a collection point for information from other nerve cells.
The spinal cord connects the brain stem to the spinal column and extends down the body. The spinal cord is a dense web of nerve tissue that transmits signals from the body to the brain and vice versa. The spinal cord is housed within the vertebral column's bones, yet it can send and receive information from the body due to its connections with spinal nerves. Motor reflexes are also controlled by the spinal cord. Such reflexes are spontaneous motions, such as withdrawing one's hand from a hot item. Because local synaptic connections are involved, reflexes are extremely quick.
Hence the correct option is b.
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