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103 - Heart, Lungs, Blood
Theme 1: Cardiovascular System
T1 L1: intro to circulation
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Cards (18)
Shock?
insufficient
perfusion
Pulmonary circulation is in
series.
Systemic circulation is in
parallel.
Blood pressure equation?
blood
pressure
=
cardiac
output
x
peripheral
resistance
Korotkoff sounds?
artery open:
no sound
artery opening and closing:
sound heard
(due to
turbulence
)
artery closed:
no sound
What type of blood vessel regulates capillaries, resistance, set blood pressure and total peripheral resistance?
arterioles
Majority of the blood is stored where?
veins
Which type of circulation has low pressure, low resistance and high flow?
pulmonary circulation
Which type of circulation has high pressure, variable flow and resistance?
systemic circulation
Which side of heart has crescent x-section?
right
side (
pulmonary
circulation)
Which side of heart has circular X-section?
left
side (
systemic
circulation)
Apex beat?
at
systole
,
apex
of heart moves
forward
and strikes the
chest wall
What is the first heart sound (lub)?
closing of
mitral
and
tricuspid
valves
What is the second heart sound (dub)?
closing of
aortic
and
pulmonary
(
semilunar
) valves
Hypoxaemia?
low
O2 content generally through
arterial
blood
Angina pectoris?
chest pain
due to
ischaemia
of
heart tissue
or
coronary artery disease
/
embolism
treat:
nitrates
(
immediate
relief)
Treatment of myocardial infarction?
immediate
reperfusion
:
morphine
,
oxygen
,
nitrates
,
aspirin
Loss of consciousness due to heart malfunction?
syncope