Why doesn’t blood volume change during isovolumetric ventricular systole?

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
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Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Looking at the wiggers diagram Why doesn’t blood volume change during isovolumetric ventricular systole?
Time (msec)
600
700
800
300
400
500
100
200
QRS
complex
QRS
complex
Electro-
cardiogram
(ECG)
120 -
B
90
Dicrotic notch
Aorta
Pressure
A
(mm Hg)
Left
ventricular
60-
pressure
30-
Left atrial
D
pressure
Heart
sounds
S1
S2
135
Left
ventricular
volume (mL)
Ventricular
systole
Ventricular
diastole
Atrial
Atrial
systole
systole
Atrial systole
Isovolumic
ventricular contraction
Ventricular systole
Early ventricular
diastole
Late ventricular
diastole
Atrial systele
the Av valves open
MacBook Pro
Q Search or enter website name
@
#
$
%
&
*
3
4
7
8
E
R
Y
U
Transcribed Image Text:Time (msec) 600 700 800 300 400 500 100 200 QRS complex QRS complex Electro- cardiogram (ECG) 120 - B 90 Dicrotic notch Aorta Pressure A (mm Hg) Left ventricular 60- pressure 30- Left atrial D pressure Heart sounds S1 S2 135 Left ventricular volume (mL) Ventricular systole Ventricular diastole Atrial Atrial systole systole Atrial systole Isovolumic ventricular contraction Ventricular systole Early ventricular diastole Late ventricular diastole Atrial systele the Av valves open MacBook Pro Q Search or enter website name @ # $ % & * 3 4 7 8 E R Y U
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