Campbell Biology In Focus, Loose-leaf Edition (3rd Edition)
3rd Edition
ISBN: 9780134895727
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky
Publisher: PEARSON
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Textbook Question
Chapter 34, Problem 3TYU
Pulse is a direct measure of
- A. blood pressure.
- B. stroke volume.
- C. cardiac output.
- D. heart rate.
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During emergency situations, even if the
nerves to the heart have been severed, the
heart rate will:
Select one:
a. stay the same.
b. decrease.
c. increase.
d. lead to hypotension.
which of the following factors will increase the cardiac output?
a. decreased heart rateb. increased stroke volumec. increased end-systolic volume d. decreased sympathetic activitye. decreased venous return
A patient has been in a serious car accident and is hemorrhaging. Which of the following changes would be seen in this patient? a. a decrease in stroke volume b. an increase in heart rate c. a possible decrease in cardiac output d. All of these are correct.
Chapter 34 Solutions
Campbell Biology In Focus, Loose-leaf Edition (3rd Edition)
Ch. 34.1 - How is the now of hemolymph through an open...Ch. 34.1 - Three-chambered hearts with incomplete septa were...Ch. 34.1 - Prob. 3CCCh. 34.2 - Prob. 1CCCh. 34.2 - Why is it important that the AV node delay the...Ch. 34.2 - Prob. 3CCCh. 34.3 - What is the primary cause of the low velocity of...Ch. 34.3 - Prob. 2CCCh. 34.3 - Prob. 3CCCh. 34.4 - Prob. 1CC
Ch. 34.4 - Prob. 2CCCh. 34.4 - Prob. 3CCCh. 34.4 - Prob. 4CCCh. 34.5 - Why is an internal location for gas exchange...Ch. 34.5 - After a heavy rain, earthworms come to the...Ch. 34.5 - MAKE CONNECTIONS Describe similarities in the...Ch. 34.6 - Prob. 1CCCh. 34.6 - Prob. 2CCCh. 34.6 - WHAT IF? If an injury tore a small hole in the...Ch. 34.7 - What determines whether O2, or CO2, undergoes net...Ch. 34.7 - How does the Bohr shift help deliver O2, to very...Ch. 34.7 - Prob. 3CCCh. 34 - Which of the following respiratory systems is not...Ch. 34 - Blood returning to the mammalian heart in a...Ch. 34 - Pulse is a direct measure of A. blood pressure. B....Ch. 34 - Prob. 4TYUCh. 34 - One feature that amphibians and humans have in...Ch. 34 - If a molecule of CO2 released into the blood in...Ch. 34 - Prob. 7TYUCh. 34 - DRAW IT Plot blood pressure against time for one...Ch. 34 - Prob. 9TYUCh. 34 - Prob. 10TYUCh. 34 - Prob. 11TYUCh. 34 - SYNTHESIZE YOUR KNOWLEDGE The diving bell spider...
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- The QRS wave of an ECG (or EKG) represents: a. depolarization of the ventricles. b. Depolarization and repolarization of the ventricles. c. Depolarization of the atria and ventricles. d. depolarization of the atria.arrow_forwardCardiac output is determined by: A. Return of blood to the heart and the heart rate B. Strength of contraction of the left ventricle C. Stroke volume and heart rate D. Systolic discharge and stroke volumearrow_forwardThe effects of the sympathetic and parasympathetic neurons on the heart can best be described as a. antagonistic b. identical c. cooperative d. adrenergicarrow_forward
- a calcium channel blocker or an antagonist drug will produce a. vasoconstriction b. increase in blood pressure c. increase in total peripheral resistance d. reduction in cardiac muscle contractilityarrow_forwardWhich of the following is/are involved in regulating blood pressure? a. heart b. baroreceptors c. cardiovascular center in medulla oblongata d. all of the abovearrow_forwardparasympathetic nerve stimulation in the heartt will result in A.decreased heart rate B.increased vescular resistence . C. decrease venous tone D. both a and barrow_forward
- Which cell types are associated with spontaneous action potential generation in the absence of an external stimulus from other tissues. A. Sino-Atrial node cells (SA node). B. Atrial cells C. Ventricular cells. D. Endothelial cells. E. A and D.arrow_forwardAll of the following are true except A. Pause is defined as heartbeats per minute B. The carotid pulse is felt at the angle of the mandible C. The femoral pulse is felt in the groin D. The radial pulse is felt at the pinky side of the wristarrow_forwardcardiac output will increase by a. decreased blood volume and decrease of heart contractility b. decreased heart rate and contractility c. increased venous return and increased heart contractility d. decreased peripheral resistance and decreased venous returnarrow_forward
- Increased parasympathetic stimulation of the hearta. increases the force of ventricular contraction.b. increases the rate of depolarization in the SA node.c. decreases heart rate.d. increases cardiac outputarrow_forwardThe cardiovascular centers are located in which area ofthe brain?a. medulla oblongatab. ponsc. mesencephalon (midbrain)d. cerebrumarrow_forwardChanges in the cardiac rate primarily reflect changes in the duration of a. systole. b. diastole.arrow_forward
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