Match the response with the type of chemical.
1. pupil dilation
2. salivation
3. decreased activity in digestive tract
4. fat breakdown
A. sympathetic agonist
B. parasympathetic agonist
1. A. sympathetic agonist
2. B. parasympathetic agonist
3. A. sympathetic agonist
4. A. sympathetic agonist
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The oropharynx contains lymphoid tissue called the palatine tonsils.
Answer the following statement true (T) or false (F)
Which of the following is true of the adrenal medulla?
A) It releases epinephrine. B) It responds to stimuli from the sympathetic nervous system. C) It helps produce the "fight-or-flight" response. D) All of the above are true of the adrenal medulla.
Beta-globulins transport ________, whereas gamma-globulins are ________.
A. antibodies; lipids B. lipids; heavy metals C. iron ions; antibodies D. oxygen; clotting proteins E. clotting factors; hormones
Precapillary sphincters
A. serve as valves in veins. B. are found in the tunica media. C. carry blood under high pressure. D. control the blood flow into capillary beds. E. are voluntary structures.