Which vein carries blood into the liver from the digestive tract structures?
a. inferior vena cava
b. superior vena cava
c. hepatic portal vein
d. hepatic vein
e. aorta
C
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What are the least abundant of the formed elements?
A. Basophils B. Platelets C. Neutrophils D. Eosinophils E. Erythrocytes
In the emergency room you examine a patient experiencing angina pectoris. Which of the following is least likely to be associated with your patient?
A) severe, crushing pain deep to the sternum B) ischemia to a part of his myocardium C) a partial or complete blockage of a coronary artery D) decreased oxygen exchange in the lungs E) pain relief with rest
All of the following will help the skin to fight infection but one. Which of the following will have little effect on the skin's ability to fight infection?
A) Increased secretions of defensins from skin cells. B) Greater production of keratinocytes resulting in more layers of the stratum corneum. C) More tight junctions between keratinocytes of the stratum corneum. D) Greater production of melanin.
Which of the following monitors the composition of the cerebrospinal fluid?
A) sensory neurons on the surface of the medulla oblongata B) sensory neurons found in the carotid bodies C) sensory neurons found in the aortic bodies D) sensory neurons in the walls of the right atrium E) sensory neurons in the walls of the carotid sinus