Cardiovascular System - ANSC 222

The s1-s2 “Lub-Dub” sounds heard with a stethoscope happen when the heart valves: _____

close

The only artery that carries de-oxygenated blood:

Pulmonary

The valves separating the ventricles from the arteries:

Semilunar

The portion of the cardiac cycle when the heart forces blood out:

Systole

This system aids blood flow back to the heart:

Venous Return

The structure within the heart that allows blood to flow forwards but not backwards:

Valve

The largest vein in the body:

Vena Cava

The part of the nervous system that controls heart beat:

Autonomous

The node where the cardiac electrical conduction system begins:

Sinoatrial

The self-beating cells that make up heart muscle:

Cardiomyocytes

This layer of the vessel controls vasoconstriction and vasodilation:

Tunicarmedia

The largest cells in the heart, part of the cardiac electrical conduction system:

Perkinje Fibers

The portion of the cardiac cycle when the heart refills with blood:

Diastole

The medical term for a heart rhythm that is too slow:

Bradycardia

The thickest tissue layer of the heart:

Myocardium

The largest artery in the body:

Aorta

These vessels bring blood TOWARDS the heart:

Veins

These vessels bring blood AWAY from the heart:

Arteries

This vessel is the smallest:

Capillary

The valves separating the atria from the ventricles:

Atrioventricular

The medical term for a heart rhythm that is too fast:

Tachycardia

The most abundant type of cell in the blood:

Erythrocyte

In blood flow mechanics, this factor is a measure of impediment to flow:

Resistance

Thrombocytes are also called:

Platelets

______ volume = the volume of blood pumped per heart beat:

Stroke

Red blood cell antigen recognized by agglutinins:

Agglutonigen

The scientific term for clumping of red blood cells:

Agglutination

This forms during the second stage of hemostasis:

Platelet Plug

This term means “blood halting”:

Hemostasis

The opposite of hemostasis:

Hemorrhage

The cell that changes shape when it becomes active:

Thrombocyte

In blood flow mechanics, this factor is the change in pressure:

Pressure Gradient

Condition where vessels narrow due to plague buildup:

Atherosclerosis

The term indicating a vessel is blocked by a blood clot:

Thrombosis

Number of heart beats per minute:

Heart Rate

The proper scientific term for white blood cells

Keukocytes

The term for peak blood pressure, produced by contracting ventricles:

Systolic

Stretch-sensitive mechanoreceptor neuron:

Baroreceptor

Two words indicating flow rate, or the volume of blood pumped through the heart in 1 min:

Cardiac Output

This human erythrocyte antigen was named after monkeys:

RH Factor

This heart ventricle thickens as a result of chronic high blood pressure:

Left

The lysing of red blood cells:

Hemolysis

The term describing cells that do not have a nucleus:

Anucleate

Stiffened, narrowed vessels:

Arteriosclerosis

The first stage of hemostasis:

Vasoconstriction

The scientific term for blood clot:

Thrombus

This molecule, which contains iron, gives red blood cells their red color:

Heme

The term for blood pressure in arteries, when ventricles are relaxed:

Diastolic

A bulge in a vessel:

Aneurysm

The term for chronic high blood pressure:

Hypertension

How many blood group types are there in the ABO blood group system?

Two

The last stage of hemostasis:

Coagulation