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the hapatic portal vein carries blood to the ... |
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3 layers of the hear and describe |
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epicardium/ parietal pericardium - outside layer -connective tissure myocardium -middle layer -cardiac muscle endocardium -inner layer -endothelium |
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three layers of a blood vessel |
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Tunice intima - endothelium ""media- smooth muscle -controled by sypmathetic nervous system "" external - fibrus connective tissue |
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(heart rate)*( stroke volume) |
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Tell what umbilical arteries and veins carry and where |
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umbilical veins carry oxygenated blood to the fetus "" arteries- low oxygenated blood to the placenta |
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compare walls of ta vein to those of a artery |
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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 |
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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 |
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list and describe the semil lunar valves |
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Definition
-pulmonary -aortic base of 2 large arteries and 3 cusps |
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the brachiocephalic veins join to form the ... |
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place in the proper blood flow order capillaries arteries veins venules arterioles |
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Definition
arteries arterioles capillaries venules veins |
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vein that carry oxygenated blood |
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Durring ventricular diastole, what valves are open and what calves are shut |
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Definition
semilunar valves- closed av valves- open |
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Term
path of transmission of an impulse in the intrinsic conduction system of the heart |
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Definition
sa node atria av node av bundle bundle branches purkinje fiber ventricals |
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During ventricular systole, what valves are open and what valves are shut |
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Definition
Av valves - closed semilunar valves- open |
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occur when venous valves weaken and turn purple and snake like |
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internal-serves brain External- serves skin, muscles, neck |
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septum that divides the heart lonitudinally |
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flap like opening in the interatrial septum where some blood is shunted through in to the left atrium |
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internal- drains dural sinuses of the brain external- vein that delivers blood to the skin, muscles, and head |
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any of a number of proliferate and degeerative changes in the arteries leading to dereased elasticity |
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amount of friction encountered by the blood as it flows through the blood vessels |
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pressure when ventricals are relaxd |
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The pressure generated by the left ventrical during systole pressure in the arteries at peak of ventricular contraction |
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pointed directed toward the left hip rests on the diaphram |
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the sybstance that encloses the heart with a double sac of serous membrane |
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bicuspid valve and description aka_______ |
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mitral valve, 2 cusps of endocardium |
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white cords, heart strings, anchor the cusps to the walls of the ventricals |
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" heart attack" or " coronary" |
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a period of relaxation of the heart during which it fills with blood |
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contraction phase of heart activity |
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volume of blood pumped out by each ventrical with each heart beat |
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amount of blood pumped out by each side of the heart in one min |
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a heart rate that is substantially slower than normal (<60 beats/min) |
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drain tissues and return blood to the heart |
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a vessel that carries blood away from the heart |
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