Flashcards in 14 - The Cardiovascular System Deck (107)
The study of the heart and the circulatory system and it's diseases and disorders.
What are the functions of blood?
Transport gases, nutrients, and hormones throughout the body tissues; remove waste products from the tissues; regulate the body's pH; regulate the amounts of fluid present in the tissues; assist in regulating body temperature; and protect against pathogens.
What percent is the plasma in the blood?
Plasma is composed of what percent of water?
Regulates the blood pressure by functioning like a sponge to keep water in the vascular compartment to maintain plasma volume.
Helps fight infection and transport a variety of substances.
Causes blood to clot.
What percentage of blood is red blood cells?
Another term for red blood cells.
Another term for white blood cells.
Cell fragments that contribute to blood clotting.
The process of blood clotting.
Another term for blood clot.
A blood clot that breaks free and moves through the vessel.
The blood types depend on the presence or absence of what?
The major vein draining the thorax and the head, ending at the right atrium.
Superior vena cava
A large venous trunk draining the lower extremities and the abdominopelvic region.
Inferior vena cava
The only veins that carries oxygenated blood from the lungs to the left atrium.
A measurement of the volume of blood ejected from the heart per minute.
The contraction phase of the cardiac cycle.
A contraction of the atrium.
The pacemaker of the heart; it is the impulse-generating tissue that normally dictates heart rate.
Sinoatrial node (SA)
The largest artery in the body; it originates at the heart and branches into the extremities, the neck, and all the major organs; supplies oxygenated blood throughout the body.
A heart valve that divides the left ventricle from the aorta.
A vessel that carries blood away from the heart.
A structure located between the atria and the ventricles that conducts electrical impulses from the atria to the ventricles.
Atrioventricular node (AV)
One of the two upper (receiving) chambers of the heart.
A pressure receptor on the inside walls of some arteries that is sensitive to stretching of the walls occurring from an increase in pressure.
The heart valve that divides the left atrium from the left ventricle. It has two flaps; also known as the mitral valve.