Lab 8 Cardiovascular Physiology I Flashcards
Atria
Smaller in size with dinner Les muscular walls
Top two chambers
Ventricles
Are larger, thicker and more muscular because they are pumping chambers of the heart
Forces the blood out of the heart to other locations in the body
Vena cavae
Largest been in the body
Deoxygenated blood enters the heart from the body using the vena cavae
Right atrium
Receives blood after the vena cavae dumps it
Right AV valve
Open so that the blood from the right atrium can be pushed into the right ventricle
Pulmonary valve
The Val through which blood leads the right ventricle is close so that the right ventricle will fill with blood
pulmonary arteries
Take blood to the lungs where the carbon will be exchanged for oxygen
Pulmonary veins
Dumps the oxygenated the only been to carry oxygenated blood into the left atrium
Left AV valve
Opens so that the blood from the left atrium can be pushed into the left ventricle
Aortic valve
The Val through which blood leaves the left ventricle
Aorta
Branches into arteries that become smaller arterioles until they become capillaries
Venules
From the capillaries the blood vessels merge into large blood vessels called VENULES that become veins that you eventually all merge into the vena cava
Cardiac cycle
Describes the filling and emptiness of blood from the heart
Systolic phase
Stolid face takes place when the ventricles contract ejecting blood out of the heart well the atria are relaxing (refilling)
Diastolic phase
Takes place during filming of the ventricles as blood leaves the atria
