Varicose veins increase the risk of
A. atrial fibrillation.
B. thromboembolism.
C. hypertension.
D. hypovolemia.
Answer: B
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Which structure of the eye is the most sensitive but contains no blood vessels?
A) iris B) choroid C) retina D) sclera E) cornea
Which of the following structures produces a hormone responsible for stimulating red blood cell production?
A. Stomach B. Heart C. Kidney D. Skin
What is the definition of functional residual capacity?
A. The maximum amount of air that can be moved B. The maximum amount of air that can be inspired after the expiration of a normal breath at rest C. The amount of air remaining in the lungs after the expiration of a normal breath at rest D. The maximum amount of air the lung can hold
Neurotransmitters involved in the reward pathways include enkephalin, dopamine, and epinephrine.
Answer the following statement true (T) or false (F)