A group of neuron cell bodies in the CNS that has a descrete boundary is called a
A) nucleus.
B) ganglion.
C) center.
D) soma.
E) column.
A) nucleus.
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Bones that have complex shapes are
A) long bones. B) flat bones. C) sesamoid bones. D) short bones. E) irregular bones.
Osmoreceptors detect changes in the concentration of solutes in the extracellular fluid
a. True b. False Indicate whether the statement is true or false
During the cardiac cycle,
A. all four chambers of the heart are in systole at the same time. B. the right atrium and the right ventricle contract simultaneously. C. the left atrium contracts before the right atrium. D. the two atria relax while the two ventricles contract. E. all four chambers of the heart contract at the same time.
Aldosterone regulates __________.
A.)blood iodide ion levels B.)blood glucose levels C.)extracellular sodium and potassium ion levels D.)blood calcium ion levels