Term
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Definition
T
15-25x
Increased Cardiac Output and Redistribution of Blood Flow |
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Term
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Definition
Transport O2
Transport nutrients
Temp.. regulation |
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Term
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Definition
Heart - pups blood
Arteries - carry oxygenated blood away from the heart to the tissues
Arterioles - smaller arteries
Capillaries - smallest vessels, where the actual exchange of gas an nutrients takes place |
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Term
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Definition
Pulmonary vein carries oxygenated blood to the heart from the lungs
Pulmonary artery carries deoxygenated blood from the heart to the lungs |
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Term
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Definition
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Term
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Definition
| Right ventricle - Right atria via. the tricuspid valve - pulmonary artery through the pulmonary valve - lungs - pulmonary vein -left ventricle - left atria via bicuspid valve - aorta via aortic valve - arteires - arterolis - capilaries - venules - veins - vina cava - right atria |
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Term
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Definition
1. epicardium - lubricates outside of heart
2. myocardium - contraction
3. Endocardium - protects inside of heart |
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Term
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Definition
Ischemia -low blood flow
Hypoxia - low O2
Ischemia leads to hypoxia |
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Term
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Definition
| Blockage of Coronary Artery |
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Term
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Definition
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Term
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Definition
Rater pressure product or Double product
RPP = (HR x SBP)/100 |
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Term
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Definition
Slow twitch
Oxidative
Aerobic
more mitochondria |
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Term
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Definition
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Term
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Definition
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Term
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Definition
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Term
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Definition
More heat shock proteins
Increased ability to remove free radicals |
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Term
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Definition
Differences: Shorter branched Fibers, involuntary contraction, intercalated disc (fuctional syncytium)
Similarities: actin and myosin, require ca++, sliding filament, fiber length impacts force of contraction (Frank Starlings law of the heart) |
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Term
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Definition
| Heart muscle cells connected via intercalated discs (leaky membrane) |
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Term
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Definition
systoli is the contraction phase, diastoli is the relaxation phase
At rest diastoli is about twice as long as systoli
During exercise diasolic phase shortens more than systoli |
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Term
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Definition
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Term
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Definition
| Pressure exerted against the walls of the arteries |
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Term
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Definition
normal = <120/80
HTN = Grater than or equal to 140/90 |
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Term
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Definition
90% primary
10% secondary (secondary to a disease) |
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Term
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Definition
PP = SBP-DBP
MAP = DBP + 1/3(PP) |
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Term
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Definition
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Term
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Definition
Map = Flow x TPR
a. Pressure is a function of flow x resistance
b.the amount of blood forced out of the heart per minute
c. HR x SV
d. Number of times the heart beats per minute
e. Amount of blood forced out of the heart per beat
f. HR = 72, SV 70ml, Q = 5l
g. MAP increases, Q increases, TPR decreases
h. TPR directly proportional MAP and Q, and indirectly related to vessel diamiter |
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Term
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Definition
| ANS, baro receptors located in the corotid artery and the aortic arch, Long term regulation is via the kidneys which contorls blood volume |
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Term
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Definition
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Term
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Definition
Intercalated discs
Syncytium
Fibrilation |
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Term
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Definition
SA
AV
Atrioventricular bundle
Right and left bundle branches
Purkinje fibers |
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Term
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Definition
HR Rest TR lower, max TR higher
SV rest TR same, max TR higher
Q rest TR same, max TR higher |
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Term
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Definition
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Term
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Definition
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Term
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Definition
SNS, PNS via vagus nerve
SNS NT = NE
PNS NT = ACH
PNS is the brake causes hyperpolerization, SNS is the excellerator |
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Term
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Definition
withdrawl of PNS stimulation
Increased SNS inervation |
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Term
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Definition
EDV(preload)
ESV (afterload)
contractility |
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Term
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Definition
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Term
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Definition
| EDV determined by venous return |
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Term
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Definition
Muscle pump increased
Respiratory pump increased
veins constrict increased |
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Term
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Definition
Circulation epinephrine and norepinephrine
Increased sympathetic stimulation |
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Term
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Definition
| liquid, proteins, hormones |
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Term
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Definition
Eurethrocyes transportation O2
Luckocytes immune response |
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Term
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Definition
The percent of blood composed of redblood cells
males 42%
females 38% |
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Definition
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