BIOLOGY (LL)
5th Edition
ISBN: 9781264115495
Author: BROOKER
Publisher: MCG
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Chapter 53.2, Problem 3EQ
Summary Introduction
To explain:
The procedure of testing the hypothesis that the most important contribution to the baroreceptor reflex arose specifically from the carotid artery baroreceptors.
Introduction:
The pressure of the blood has to be maintained to supply enough blood to the heart for the supply of oxygen and to remove carbon dioxide from the bloodstream. The removal of baroreceptors can disturb the pressure by maintaining the homeostasis mechanism of the body. The baroreceptors present in the blood vessels help to determine the blood pressure as well.
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Question 22
The corresponding mechanical events of P wave and the QRS complex are
oo
O Depolarization of the ventricles; repolarization of the atria
O
O
O
Depolarization of the ventricles; polarization of the SA Node
contraction of the atria; contraction of the ventricle
Contraction of the AV node; relaxation of the SA node
Repolarization of the ventricles; polarization of the atria and ventricles
and
respectively?
Fill in the following blanks (a - f) regarding the Baroreceptor Reflex Control:
The baroreceptor reflex control is a negative feedback loop.
If the patient is hypotensive, they are experiencing a decrease in blood pressure detected by
(a.)_
located in the aortic and carotid bodies.
The afferent pathways include the (b.)_
nerve and the (c.)__
nerve.
These synapse at the cardioregulatory and vasomotor integration centers located in the
(d.)_
These centers will cause the heart rate to (e.)(increase/decrease) and blood vessels to (f.)
(vasodilate/vasocontrict).
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BIOLOGY (LL)
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