Chapter 19 Flashcards
Heart
The muscular organ in the chest cavity that pumps the blood
Atrium
Either of the two upper chambers of the heart that receive blood from the veins and pump it into the ventricles
Ventricle
Either of the two lower, muscular chambers of the heart that pump blood into the arteries
Aorta
The main artery of the body; exits the left ventricle
Artery
A thick, muscular blood vessel that carries blood away from the heart
Capillary
A microscopic blood vessel that connects arteries to veins
Vein
A thick-walled blood vessel with valves that carries blood back to the heart
Superior Vena Cava
The major vein from the upper part of the body that enters the right atrium
Inferior Vena Cava
The major vein from the lower part of the body that enters the right atrium
Septum
The wall of cardiac muscle that separates the left and right sides of the heart
Systemic Circulation
The path of blood vessels from the heart to the systems of the body and back
Pulmonary Artery
Either of the two arteries that carry oxygen-poor blood from the heart to the lungs
Pulmonary Veins
Any of the veins that carry oxygen-rich blood back to the heart from the lungs
Pulmonary Circulation
The path of blood vessels from the heart to the lungs and back
Plasma
The liquid part of the blood
Red Blood Cell
A disc-shaped cell in the blood which contains hemoglobin for carrying oxygen
Hemoglobin
An iron-containing protein in red blood cells that carries oxygen
White Blood Cell
An amoeboid cell in the blood that engulfs and destroys pathogens
Platelet
A colorless cell fragment in the blood that begins the clotting process
Fibrinogen
A protein in the blood that forms fibers to help platelets form a clot
