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1. QUIZ Observe the 3 serial transfer functions on the board 1, 2, 3. The overall transfer function 4 will have the approximate form (shape) of transfer function A. 1 +B. 2 C. 3 D. None of these 2. Circulating norepinephrine (adrenaline) or increased sympathetic nerve activity causes _________ SVR, _________ heart rate, and _________ heart contractility. +A. increased, increased, increased B. increased, increased, decreased C. decreased, increased, decreased D. decreased, increased, increased E. none of the above 3. All of the following are capable of increasing body temperature EXCEPT A. decreased sweat production +B. diarrhea C. very low urine excretion D. shivering 4. When the feedback signal from the carotid baroreceptors (pressure receptors) in a normal person DECREASES rapidly the heart rate will probably A. decrease and might oscillate around a new level +B. increase and might oscillate around a new level C. increase to a stable new level D. remain fixed in spite of this change in feedback
5. When making an analogy between simple diffusion and Ohm's Law, the diffusion coefficient/constant corresponds to which one of the following quantities? A. current +B. conductance C. voltage D. 1/conductance 6. The closed loop control system of Thyroid gland function involves the _____ and there are ____ feedback loop(s). A. thyroid isthmus, 1 +B. hypothalamus, 2 C. pituitary, 3 D. parathyroid, 1 7. Alpha-1 receptors cause_______ while Beta-1 receptors cause _____ A. arteriolar dilation, heart rate decrease B. vein dilation, heart rate increase +C. arteriolar constriction, heart rate increase D. bronchiolar dilation, vein dilation 8. Select the TRUE statement: (for our purpose here "gradient" means from high to low concentration) +A. In facilitated diffusion, species transport can occur in the direction of the diffusion gradient. B. The major types of diffusion are Simple, Complex, and Facilitated. C. Active transport sometimes requires ATP. D. Facilitated diffusion sometimes requires ATP. 9. The formula for blood output from the heart (cardiac output) is A. heart rate / blood pressure B. contractility / stroke volume +C. stroke volume x heart rate D. heart rate / vascular resistance 10. In the blood pressure control system presented in class of all the following are "manipulated variables" EXCEPT A. stroke volume +B. blood pressure C. heart contractility D. vascular resistance 11. The sympathetic nervous system activates ___ receptors in skin and muscle arterioles and causes +A. Alpha-1, vasoconstriction B. Beta-4, vasoconstriction C. Dopaminergic, vasodilation D. Cholinergic, no effect 12. The vagus nerve releases _____ in the heart and causes release of_____ A. norepinephrine, heart slowing +B. acetycholine, heart slowing C. norepinephrine, heart speeding D. epinephrine, heart slowing
13. Including the terminal organ synapse, the sympathetic nervous system has _____ synapses outside the CNS while the parasympathetic NS has _____ synapses outside the CNS A. 1, 2 B. 1, 3 +C. 2, 2 D. 2, 1 E. 3, 1 14. You would WORSEN an ongoing asthma attack if you gave a ________ drug. A. alpha1 blocker B. beta1 blocker +C. beta2 blocker D. M1 blocker 15. If you were to have a severe injury to, or complete anesthesia of, the nerves coming out of the thoracic and lumbar section of the spinal cord there would probably be a(n)__________. A. increase in heart rate +B. decrease in heart rate C. increase in heart contractility D. increase in heart conduction speed 16. Plasma sodium concentration is about _____ and intracellular sodium is about _____ with units of +A. 145, 10, milliequivalents/liter B. 10, 145, milligrams C. 65, 10, milliequivalents D. 145, 120, millimoles 17. Considering cell membrane transports when a person's blood becomes acid (H+ increases) the critical ion, K+, in the blood will _______ and this can cause the heart to _______ A. decrease, increase contractility +B. increase, stop C. Increase, increase heart rate D. decrease, decrease contractility 18. In the small piece of the cardiovascular blood pressure control system developed in class it was seen that increased Beta-1 activity caused ______ to increase that, in turn, caused increased contractility (stroke volume) A. epinephrine B. adrenaline +C. calcium D. Potassium 19. The ion that is directly responsible for maintaining nerve and muscle resting potential is A. Na+ +B. K+ C. Ca++ D. Mg++
20. The cardiac output of a newborn is controlled primarily by A. stroke volume +B. heart rate C. contractility D. blood return to the heart