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The cardio Vascular system
3-13-07 Cardiovascular system test
38
Anatomy
10th Grade
03/12/2007

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Term
the hapatic portal vein carries blood to the ...
Definition
liver
Term
3 layers of the hear and describe
Definition
epicardium/ parietal pericardium
- outside layer
-connective tissure
myocardium
-middle layer
-cardiac muscle
endocardium
-inner layer
-endothelium
Term
three layers of a blood vessel
Definition
Tunice intima - endothelium
""media- smooth muscle
-controled by sypmathetic nervous system
"" external - fibrus connective tissue
Term
calculate cardiac output
Definition
(heart rate)*( stroke volume)
Term
Tell what umbilical arteries and veins carry and where
Definition
umbilical veins carry oxygenated blood to the fetus
"" arteries- low oxygenated blood to the placenta
Term
compare walls of ta vein to those of a artery
Definition
Artery walls are thicker beceause they have to hold more pressure
veins are thinner because they hold more volume vein lumens are also bigger
Term
Path of blood in a adult
Definition
From the right atrium through the tricuspid valve to the right ventrical through the pulminary semilunar valves to the pulminary trunk to tht right and left pulminary arteries, to the capillary beds of the lungs to the right and left pulminary viens and to the left atrium of the heart through the bicuspid valve to the left ventrical through the aortiv semilunar valve tot he aorta, to the systemic arteries tot he capillary beds of the body tissure to the systemic veins to the superior vena cava and inferior vena cava which enter the right atrium of the heart
Term
list and describe the semil lunar valves
Definition
-pulmonary
-aortic
base of 2 large arteries and 3 cusps
Term
pace maker of the heart
Definition
sa node
Term
the brachiocephalic veins join to form the ...
Definition
superior vena cava
Term
place in the proper blood flow order
capillaries
arteries
veins
venules
arterioles
Definition
arteries
arterioles
capillaries
venules
veins
Term
vein that carry oxygenated blood
Definition
umbilical vein
Term
Durring ventricular diastole, what valves are open and what calves are shut
Definition
semilunar valves- closed
av valves- open
Term
path of transmission of an impulse in the intrinsic conduction system of the heart
Definition
sa node
atria
av node
av bundle
bundle branches
purkinje fiber ventricals
Term
During ventricular systole, what valves are open and what valves are shut
Definition
Av valves - closed
semilunar valves- open
Term
varicose veins
Definition
occur when venous valves weaken and turn purple and snake like
Term
carotid artery
Definition
internal-serves brain
External- serves skin, muscles, neck
Term
interatrial septum
Definition
septum that divides the heart lonitudinally
Term
Foramen ovale
Definition
flap like opening in the interatrial septum where some blood is shunted through in to the left atrium
Term
jugular vein
Definition
internal- drains dural sinuses of the brain
external- vein that delivers blood to the skin, muscles, and head
Term
artheroscierosis
Definition
any of a number of proliferate and degeerative changes in the arteries leading to dereased elasticity
Term
peripheral resistence
Definition
amount of friction encountered by the blood as it flows through the blood vessels
Term
diastolic pressure
Definition
pressure when ventricals are relaxd
Term
systolic pressure
Definition
The pressure generated by the left ventrical during systole pressure in the arteries at peak of ventricular contraction
Term
apex
Definition
pointed directed toward the left hip rests on the diaphram
Term
pericardium
Definition
the sybstance that encloses the heart with a double sac of serous membrane
Term
tricuspid valve
Definition
3 cusps right AV valve
Term
bicuspid valve and description aka_______
Definition
mitral valve, 2 cusps of endocardium
Term
chordae tendineae
Definition
white cords, heart strings, anchor the cusps to the walls of the ventricals
Term
myocardial infraction
Definition
" heart attack" or " coronary"
Term
diastole
Definition
a period of relaxation of the heart during which it fills with blood
Term
systole
Definition
contraction phase of heart activity
Term
stroke volume
Definition
volume of blood pumped out by each ventrical with each heart beat
Term
cardiac output
Definition
amount of blood pumped out by each side of the heart in one min
Term
bradycardia
Definition
a heart rate that is substantially slower than normal (<60 beats/min)
Term
vein
Definition
drain tissues and return blood to the heart
Term
artery
Definition
a vessel that carries blood away from the heart
Term
tachycardia
Definition
a rapid heart rate
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