Which statement about malnutrition-induced night blindness is most accurate?
A) The impaired vision is caused by reduced cone function.
B) Visual pigment content is reduced in cones more than rods.
C) Vitamin supplements can reverse degenerative changes.
D) The most common cause is vitamin D deficiency.
C
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In a patient with an abnormally leaky aortic valve, what would you expect?
A. Some backflow of blood into the aorta during ventricular diastole B. Some backflow of blood into the aorta during ventricular ejection C. Some backflow of blood into the left atrium during ventricular systole D. Some backflow of blood into the left ventricle during ventricular diastole E. Some backflow of blood into the left ventricle during ventricular ejection
Sitting sheep on their hind ends for restraint is called the __________________________
Fill in the blank(s) with correct word
Which of the following is not a requirement for measurement of the basal metabolic rate (BMR)?
a. the person must not have exercised for at least 30 minutes. b. the person must not have eaten any food within 12 hours. c. the person must have slept at least 7 hours the previous night. d. the person should be at mental rest during the measurement. e. the measurement should take place at a comfortable room temperature.
Which of the following statements is true?
A) Skeletal muscle cells are long and cylindrical with many nuclei. B) Cardiac muscle cells have many nuclei. C) Smooth muscle cells have many nuclei. D) Cardiac muscle is found in the heart and large blood vessels.