Explain how the central nervous system and peripheral nervous system differ structurally
What will be an ideal response?
Structurally, the central and peripheral nervous systems include different parts. The central nervous system (CNS) consists of the brain and spinal cord. The peripheral nervous system (PNS) includes all parts of the nervous system outside of the CNS. It consists mainly of the nerves that extend from the spinal cord and brain, called spinal nerves and cranial nerves.
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Adenine and guanine are ________ and cytosine and thymine are ______
Fill in the blank(s) with correct word
How does PTH stimulate absorption of calcium from the intestines?
A. Activates osteoclasts B. Increases peristalsis C. Stimulates intestinal enzymes D. Activates calcitriol
In a normal person at rest, the part of the respiratory cycle in which no air is flowing through the airways and the respiratory muscles are relaxed is at the end of inhalation/inspiration, prior to exhalation/expiration.
Answer the following statement true (T) or false (F)
A stimulus traveling toward a synapse appears to open calcium ion channels at the presynaptic end, which in turn promotes fusion of synaptic vesicles to the axonal membrane
Indicate whether the statement is true or false