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
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Question
Chapter 34.4, Problem 2CC
Summary Introduction
To determine:
The importance of delay of electrical impulse by AV node by moving through SA node and atria to ventricles.
Introduction:
The association of organized cardiac muscle cells, which got specialized in their functioning, is called cardiac conduction system. The cardiac excitation originating from sinoatrial node and depolarizing in Purkinje fibers is called cardiac impulse.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Clots in arteries can cause heart attacks and strokes. Why,then, does it make sense to treat people with hemophiliaby introducing clotting factors into their blood?
Several years ago, the deaths of several airline travelers led to the warning about “economic-class syndrome.” The idea is that economic-class passengers do not have as much leg room as passengers in more expensive seats, so they are more likely to sit essentially motionless for long periods of flights-conditions that may allow blood to pool and clots to form in the legs. This condition is called deep-vein thrombosis, or DVT. Given what you know about blood flow in the veins, explain why periodically getting up and moving around in a plane’s cabin during a long flight may lower the risk that a cloth will form.
Why are there so many more erythrocytes than leukocytes in both healthy and sick individuals?
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...
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
- I believe it’s the last option but want to make surearrow_forwardWhile analyzing a blood smear under a microscope, you are able to identify a large multilobed leukocyte with with large nuclei. Which of the following diseases would display this finding? Acute Myelogenous Leukemia (AML) O Idiopathic Thrombocytopenia Chronic Lymphocytic Leukemia (CLL) O Hodgkin Lymphomaarrow_forwardSickle cells are named because of their characteristic shape. What problems can this shape cause? Explain how the absence of a nucleus affects a red blood cell’s life span.arrow_forward
- What happens when a clot occurred in an undamaged blood vessel? 1) You would bleed to death. 2) A scab will form on the skin surface. 3) Platelets stick to the edges of the cut and to one another,forming a plug. 4) The flow of blood to tissues beyond the clot may be cut offarrow_forwardAbnormal bleeding can result from disorders of the coagulation system, of platelets, or of blood vessels. Disorders of the coagulation system can be hereditary or acquired. Of the hereditary disorders of hemostasis, which of the following is the most common?arrow_forwardWhat specific adverse effect is a sickle cell patient at risk for due to blood transfusions, in addition to the typical transfusion reactions? Discuss factors and rationale that put this patient at risk.arrow_forward
- Why are the activated platelets essential in the process of clotting?arrow_forwardWhat do neutrophils look like?arrow_forwardA lack of von Willebrand factor would likely cause: a) lysis of an existing fibrin clot. Ob) increased platelet production. c) a lack of platelet adhesion and aggregation. d) excessive clot formation Previous Page Next Page Pagearrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Human Biology (MindTap Course List)BiologyISBN:9781305112100Author:Cecie Starr, Beverly McMillanPublisher:Cengage Learning
Human Biology (MindTap Course List)
Biology
ISBN:9781305112100
Author:Cecie Starr, Beverly McMillan
Publisher:Cengage Learning
The Cell Cycle and its Regulation; Author: Professor Dave Explains;https://www.youtube.com/watch?v=eqJqhA8HSJ0;License: Standard YouTube License, CC-BY
Cell Division - Mitosis and Meiosis - GCSE Biology (9-1); Author: Mr Exham Biology;https://www.youtube.com/watch?v=w7vp_uRA8kw;License: Standard YouTube License, CC-BY