Biology
12th Edition
ISBN: 9780134813448
Author: Audesirk, Teresa, Gerald, Byers, Bruce E.
Publisher: Pearson,
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Chapter 33, Problem 6RQ
Summary Introduction
To explain:
The sequence of events that causes the mammalian heart to beat, including the names of structures involved.
Introduction:
The heart’s pacemaker that generates impulses is present in right atria. Heart’s pacemaker is a tissue which is also known as sinoatrial node and is responsible for the normal beating of the heart. The pacemaker’s tissue comprises of cells termed as cardiomyocytes.
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Chapter 33 Solutions
Biology
Ch. 33.1 - Why doesnt insect hemolymph need hemoglobin?Ch. 33.1 - Prob. 1CYLCh. 33.1 - compare open and closed circulatory systems?Ch. 33.1 - describe the functions of the vertebrate...Ch. 33.2 - Prob. 1CSCCh. 33.2 - Prob. 1TCCh. 33.2 - Prob. 1HYEWCh. 33.2 - describe the three types of vertebrate hearts and...Ch. 33.2 - Prob. 2CYLCh. 33.2 - Prob. 3CYL
Ch. 33.3 - Prob. 1TCCh. 33.3 - Prob. 2TCCh. 33.3 - describe each component of blood and explain its...Ch. 33.3 - Prob. 2CYLCh. 33.3 - explain the sequence of events during blood...Ch. 33.4 - Prob. 1TCCh. 33.4 - Prob. 2TCCh. 33.4 - Prob. 1CYLCh. 33.4 - Prob. 2CYLCh. 33.4 - Prob. 3CYLCh. 33.5 - Prob. 1TCCh. 33.5 - Prob. 1CSCCh. 33.5 - Prob. 1CYLCh. 33.5 - Prob. 2CYLCh. 33.5 - Prob. 3CYLCh. 33 - Prob. 1MCCh. 33 - Which of the following is True? a. Arteriole...Ch. 33 - Prob. 3MCCh. 33 - Prob. 4MCCh. 33 - Which of the following is true of blood pressure?...Ch. 33 - Prob. 1FIBCh. 33 - Prob. 2FIBCh. 33 - The hearts pacemaker is called the (complete term)...Ch. 33 - Prob. 4FIBCh. 33 - Prob. 5FIBCh. 33 - Prob. 6FIBCh. 33 - Lymph is ___________ that has entered lymphatic...Ch. 33 - List the major structures of all circulatory...Ch. 33 - Describe and compare the features of open and...Ch. 33 - Explain how two- and three-chambered vertebrate...Ch. 33 - Prob. 4RQCh. 33 - Prob. 5RQCh. 33 - Prob. 6RQCh. 33 - Prob. 7RQCh. 33 - Prob. 8RQCh. 33 - Describe the cardiac cycle, and relate the...Ch. 33 - Prob. 10RQCh. 33 - Prob. 11RQCh. 33 - Prob. 12RQCh. 33 - In what way do veins and lymphatic vessels...Ch. 33 - Prob. 1ACCh. 33 - Prob. 2AC
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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
- Describe the effect of an increased calcium ion (Ca++) concentration on the frog’s heart rate.arrow_forwardDescrive (in the correct order) the sequence of the blood flow through a four chambered mammalian heart. Be sure to address the following: 1. Begin with the return of oxygen poor blood from the body. 2. Describe the chemical O2/ CO2 and glucose content of the blood in the key locations. 3. Describe the machanisms that regulate the functioning of the system to maintain homeostasis.arrow_forwardExplain the origin and conduction of the excitation that leads to a heart contraction. Why is the vertebrate heart said to be myogenic? If the heart is myogenic, how do you account for alterations in rate of the heartbeat?arrow_forward
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- Describe the action potential of an autorhythmic cell in the heart.a) Indicate how the opening and closing of each ion channel affects the membrane potential of the cell.b) Provide one similarity between the action potential of an autorhythmic cell and the action potential of a neuron.c) Provide one difference between the action potential of an autorhythmic cell and the action potential of a neuron.arrow_forwardhttps://www.hhmi.org/biointeractive/vertebrate-circulatorium Compare and Contrast: Adult to fetal heart in mammals Fetal heart in mammals to diving heart in crocodile. To see the differences in the mammal heart as a fetus vs adult. Go to "Mammal". Click on "Heart Detail". Click "Activate". Toggle between "Fetal Heart" and "Adult Heart" to see the differences in blood flow. To see the differences in the crocodile heart on the surface vs diving. Go to "Crocodile". Click on "Heart Detail". Click "Activate". Toggle between "Surface" and "Dive" to see the differences in blood flow.arrow_forwardExplain in details contraction of the heart on cellular level by describing the contraction of an individual muscle fiber.arrow_forward
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