Hematopoiesis refers only to the production of those blood cells which respond to infectious organisms in the body
a. true
b. false
Answer: b. false
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The carotid arteries
A. are medial to the SCM. B. are medial to veins. C. supply the face, scalp, and anterior and middle portions of the brain with oxygenated blood. D. All of the above
Drugs used to reduce the tissue rejection reaction following the transplantation of tissue from one person to another
A. suppress the immune response in the recipient. B. reduce the differences between donor proteins and recipient proteins. C. stimulate the formation of antibodies by the immune cells of the recipient. D. reduce the chance of infection in the recipient.
The hyperpolarization that occurs at the end of an action potential is due to the prolonged
A. open state of chemically gated sodium channels. B. open state of voltage-gated sodium channels. C. closure of chemically gated sodium channels. D. closure of voltage-gated potassium channels. E. open state of voltage-gated potassium channels.
Each of the following is a characteristic of whole blood except
A) the ability to absorb heat from active skeletal muscles. B) viscosity about the same as water. C) the ability to neutralize acids. D) a built-in system for clotting. E) deep red color.