What is Life? A Guide to Biology with Physiology
3rd Edition
ISBN: 9781464157745
Author: Jay Phelan
Publisher: W. H. Freeman
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Chapter 21, Problem 3SA
Summary Introduction
To review:
- The difference between single and double-circuit circulatory systems.
- Which of these would be more suitable for higher energy demands.
- The reason for this choice.
Introduction:
Circuit refers to the number of times the heart pumps the blood for it to travel once all around the body.
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Students have asked these similar questions
Leaky Na+ channels in the cells of the SA Node do which of the following?
a-allow a slow repolarization which causes the delay in the AV Node
b-allow a slow depolarization which causes the atria to contract for a longer time and fill the ventricles more completely
c-allow a slow repolarization which brings the membrane potential back to a resting state
d-allow a slow depolarization that eventually reaches the threshold for voltage-gated Ca2+ channels
An artificial heart works in closed loop by varying
its pumping rate according to changes in signals
from the recipient's nervous system. For feedback
compensation design it is important to know the
heart's open-loop transfer function. To identify this
transfer function, an artificial heart is implanted in a
calf while the main parts of the original heart are left
in place. Then the atrial pumping rate in the original
heart is measured while step input changes are
effected on the artificial heart. It has been found
that. in general, the obtained response closely
resembles that of a second-order system. In one
such experiment it was found that the step response
has a %OS = 30% and a time of first peak 7,
127 sec (Nakamura, 2002). Find the corresponding
transfer function.
Aside from the corresponding transfer function, determine
the following as well: delay time, rise time, settling time and
steady state error if input is a step response.
CO
M
Name three mechanisms that can increase cardiacoutput.
Chapter 21 Solutions
What is Life? A Guide to Biology with Physiology
Ch. 21 - Prob. 1SACh. 21 - Prob. 2SACh. 21 - Prob. 3SACh. 21 - Prob. 4SACh. 21 - Prob. 5SACh. 21 - Prob. 6SACh. 21 - Prob. 7SACh. 21 - Prob. 8SACh. 21 - Prob. 9SACh. 21 - Prob. 10SA
Ch. 21 - Prob. 11SACh. 21 - Prob. 12SACh. 21 - Prob. 13SACh. 21 - Prob. 14SACh. 21 - Prob. 15SACh. 21 - Prob. 16SACh. 21 - Prob. 17SACh. 21 - Prob. 18SACh. 21 - Prob. 1MCCh. 21 - Prob. 2MCCh. 21 - Prob. 3MCCh. 21 - Prob. 4MCCh. 21 - Prob. 5MCCh. 21 - Prob. 6MCCh. 21 - Prob. 7MCCh. 21 - Prob. 8MCCh. 21 - Prob. 9MCCh. 21 - Prob. 10MCCh. 21 - Prob. 11MCCh. 21 - Prob. 12MCCh. 21 - Prob. 13MCCh. 21 - Prob. 14MCCh. 21 - Prob. 15MCCh. 21 - Prob. 16MCCh. 21 - Prob. 17MCCh. 21 - Prob. 18MC
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