Why is body temperature sometimes reduced during heart surgery?
A. To increase the oxygen content of blood
B. To slow respiration
C. To decrease heart rate
D. To increase heart rate
Answer: C
You might also like to view...
The spleen and thymus are part of the
A. cardiovascular system. B. respiratory system. C. lymphatic and immune systems. D. digestive system.
The bicuspid or mitral valve is located
A) in the opening of the aorta. B) in the opening of the pulmonary trunk. C) where the venae cavae join the right atrium. D) between the right atrium and right ventricle. E) between the left atrium and left ventricle.
Color vision has much greater resolution than night vision (vision that is mostly in shades of gray). Which of the following is the best explanation for why this is so?
A) A single cone photoreceptor often connects to a single bipolar cell and a single ganglion cell while as many as 100 rods will converge to a single ganglion cell. B) There are many more cone photoreceptors in the eye than rod photoreceptors. C) There are several types of cone photoreceptors, each of which enrich the clarity and resolution of vision. D) A larger proportion of the brain's visual cortex is active during the day when our cone photo receptors are most active.
The vessels supplying blood to the inner (diaphyseal) surface of each epiphyseal plate, where bone is replacing cartilage, are called ________ vessels.
A) periosteal B) epiphyseal C) metaphyseal D) endochondral E) endosteal