Which is referred to as the pacemaker of the heart?
a. bundle of His b. Purkinje fibers
c. AV node d. sinoatrial node
d
Health Professions
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The failure of the bone marrow to produce the components of the red blood cells is called:
A) Rheumatoid arthritis. B) Osteoarthritis. C) Gout. D) Anemia.
Health Professions
Which of the following activities would present no risk of contracting HIV from an infected individual?
a. conversation in close proximity b. pregnancy and childbirth c. sharing used hypodermic needles d. unprotected sexual relations
Health Professions