ANATOMY&PHYSIOLOGY W/CONNECT LL
4th Edition
ISBN: 9781266473982
Author: McKinley
Publisher: MCG
expand_more
expand_more
format_list_bulleted
Textbook Question
Chapter 19, Problem 10DYKB
____10. What occurs during the atrial reflex?
- a. Atria slow their filling rate.
- b. There is a decrease in heart rate due to an increase in blood pressure.
- c. The SA node rhythm decreases.
- d. An increase in heart rate occurs in response to an increase in blood volume within the atria.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
a. Ventricular diastole
b. Throughout the cardiac cycle
c. Between cardiac cycles
d. Ventricular systole
Which of the following conditions might result in the back flow of blood through a weakened mitral valve?
Group of answer choices
a. High pressure in the left ventricle, low pressure in the left atrium
b. High pressure in the left atrium, low pressure in the left ventricle
c. High pressure in the right ventricle, low pressure in the right atrium
d. High pressure in the right atrium, low pressure in the right ventricle
Prolonged pressure on the skin causes reddened areas at the point of contact due to:
Select one:
a.
Tissue damage and inflammation resulting from impaired capillary blood flow
b.
Occlusion of major arteries causing infarction of the tissue
c.
Compression of veins resulting in venous engagement
d.
Arterial vasodilation from smooth muscle relaxation
Chapter 19 Solutions
ANATOMY&PHYSIOLOGY W/CONNECT LL
Ch. 19.1 - Prob. 1WDYLCh. 19.1 - Prob. 2WDYLCh. 19.1 - Prob. 3WDYLCh. 19.1 - Prob. 4WDYLCh. 19.1 - Prob. 5WDYLCh. 19.2 - What is the bony structure that protects both the...Ch. 19.2 - Prob. 7WDYLCh. 19.2 - Prob. 8WDYLCh. 19.3 - Prob. 9WDYLCh. 19.3 - Prob. 10WDYL
Ch. 19.3 - Prob. 11WDYLCh. 19.3 - Prob. 12WDYLCh. 19.3 - Prob. 13WDYLCh. 19.3 - Prob. 14WDYLCh. 19.3 - Prob. 15WDYLCh. 19.3 - Prob. 16WDYLCh. 19.3 - What areas of the heart are deprived of blood when...Ch. 19.3 - Prob. 18WDYLCh. 19.4 - Prob. 19WDYLCh. 19.5 - Prob. 20WDYLCh. 19.5 - Which autonomic division is associated with the...Ch. 19.6 - Prob. 22WDYLCh. 19.6 - What is autorhythmicity? Describe how nodal cells...Ch. 19.6 - What is the path of an action potential through...Ch. 19.6 - What anatomic features slow the conduction rate of...Ch. 19.7 - In which direction does Ca2+ move in response to...Ch. 19.7 - What three electrical events occur at the...Ch. 19.7 - What is the significance of the extended...Ch. 19.7 - What events in the heart are indicated by each of...Ch. 19.8 - Pressure changes that occur during the cardiac...Ch. 19.8 - What is occurring during ventricular ejection?Ch. 19.8 - Prob. 32WDYLCh. 19.8 - Define end-diastolic volume, end-systolic volume,...Ch. 19.9 - What are the two factors that determine cardiac...Ch. 19.9 - What is the cardiac output at rest and during...Ch. 19.9 - Prob. 36WDYLCh. 19.9 - Describe the atrial reflex, which involves...Ch. 19.9 - Prob. 38WDYLCh. 19.9 - Prob. 39WDYLCh. 19.10 - What would be the path of blood flow through the...Ch. 19 - Which of the following is the correct circulatory...Ch. 19 - The pericardial cavity is located between the a....Ch. 19 - How is blood prevented from backflowing from the...Ch. 19 - ____ 4. Venous blood draining from the heart wall...Ch. 19 - _____ 5. Calcium channels in the nodal cells...Ch. 19 - ____6. Action potentials are spread rapidly...Ch. 19 - Why is it necessary to stimulate papillary muscles...Ch. 19 - ____ 8. Preload is a measure of a. stretch of...Ch. 19 - ____ 9. All of the following occur when the...Ch. 19 - ____10. What occurs during the atrial reflex? a....Ch. 19 - Prob. 11DYKBCh. 19 - Compare the structure, location, and function of...Ch. 19 - Prob. 13DYKBCh. 19 - Explain why the walls of the atria are thinner...Ch. 19 - Describe the structure and function of...Ch. 19 - Explain the general location and function of...Ch. 19 - Describe the functional differences in the effects...Ch. 19 - Prob. 18DYKBCh. 19 - List the five events of the cardiac cycle, and...Ch. 19 - Define cardiac output, and explain how it is...Ch. 19 - A young man was doing some vigorous exercise when...Ch. 19 - A young man was doing some vigorous exercise when...Ch. 19 - Prob. 3CALCh. 19 - Prob. 4CALCh. 19 - During surgery, the right vagus nerve was...Ch. 19 - Prob. 1CSLCh. 19 - Prob. 2CSLCh. 19 - Your grandfather was told that his SA node...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- SA node is the main pacemaker of the heart. Why is the normal heart rate lower than the intrinsic firing rate of the SA node? A. sympathetic inputs from the hypothalamus are slowing it down B. parasympathetic inputs from medulla oblongata are slowing it down C. there is inertia in heart muscle as it takes time for impulse to spread through all the cells D. centrifugal inputs from the AV node are slowing it downarrow_forwardStanding for a prolonged period of time can cause ... a. Decline in venous return b. A drop in cardiac output c. A drop in mean arterial pressure d. All of these changes can happen from prolonged standingarrow_forwardRefer to the figure of the pressures in the cardiac cycle on the right side. Letters indicate time points and numbers indicate 2 different pressures. The pressure indicated by line #1 (in green) is.... A. Atrial pressure B. Pulmonary trunk/artery pressure C. Aortic pressure D. Ventricular pressurearrow_forward
- 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 returnarrow_forwardSelect the correct one, Which of the following would not increase Cardiac Output? A. increase blood epinephrine concentration B. Increase Atrial Preload C. Increase Cardiac sarcoplasmic calcium concentration D. Increase Arterial Afterloadaarrow_forwardWhich of the following is/are true concerning the opening and closing of the cardiac valves? A. valves operate according to the pressures on either side of the valve B. valve operation is constantly being controlled by the medulla oblongata C. valve operation is determined directly by the cardiac action potential (electrical currents control the opening and closing of the valves.) D. valve operation is directly controlled by the papillary muscles within the ventricular wall. E. None of the above is correct.arrow_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_forwardIdentify the TRUE statement (s). There may be several correct answers. A. An increased cardiac output is reflected in an elevated diastolic pressure.B. An increased cardiac output is reflected in a decreased diastolic pressure.C. An increase in the force of contraction produces an elevated systolic pressure.D. An increase in the force or ventricular contraction produces a decreased diastolic pressure.arrow_forwardAll of the following mechanisms assist in returning venous blood to the heart except: a. an increase in heart rate b. pressure changes in the abdominal and thoracic cavities due to breathing c. contraction of skeletal muscles in the legs d. one-way valves located inside veinsarrow_forward
- All of the following are true of the conduction system of the heart except A. The SA node is known as the pacemaker of the heart B. The AV node has an intrinsic rate between 60 and 100 beats/min C. The AV bundle conduct signals to the bundle branches D. The purkinje fibers connect to the muscle and chordinea tendinea Choose the correct answerarrow_forwardMatch the following: ? Myocardium ? Parietal Pericardium ? Endocardium ? Visceral pericardium A. Heart muscle B. The inner lining of the heart C. Serous layer covering the heart muscle D. The outer layer of the serous pericardiumarrow_forwarda 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_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Essentials of Pharmacology for Health ProfessionsNursingISBN:9781305441620Author:WOODROWPublisher:CengageMedical Terminology for Health Professions, Spira...Health & NutritionISBN:9781305634350Author:Ann Ehrlich, Carol L. Schroeder, Laura Ehrlich, Katrina A. SchroederPublisher:Cengage Learning
Essentials of Pharmacology for Health Professions
Nursing
ISBN:9781305441620
Author:WOODROW
Publisher:Cengage
Medical Terminology for Health Professions, Spira...
Health & Nutrition
ISBN:9781305634350
Author:Ann Ehrlich, Carol L. Schroeder, Laura Ehrlich, Katrina A. Schroeder
Publisher:Cengage Learning
Complications during Labour and Delivery; Author: FirstCry Parenting;https://www.youtube.com/watch?v=QnCviG4GpYg;License: Standard YouTube License, CC-BY