Caffeine is a stimulant. This can cause your nervous system to become hyper-aware; which in turn can cause an increase in your stress level. Caffeine causes a rise in both respiration and cardiac function. The hormone adrenaline is secreted by the adrenal glands in response to stimulation of the sympathetic nervous system. It causes what is known as the "fight-or-flight" response.
I would say skeletal, because it is a test to determine the body's sense of positioning , which requires a normal functioning of the spinal cord.
I would go with option B.
Answer:
Explanation:
From the capillaries, blood passes into venules, then into veins to return to the heart. Arteries and arterioles have relatively thick muscular walls because blood pressure in them is high and because they must adjust their diameter to maintain blood pressure and to control blood flow.
