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Chapter 22A: Circulatory

Teacher: Snickerfritz
Across
The muscular wall that divides the heart into right and left sides
A thrombus or portion of it that has become dislodged and floats in the blood
A straw-colored liquid that makes up 55% of the blood
The thickest portion of the heart wall; is the cardiac muscle tissue that contracts and pumps blood
The contraction of the heart muscle
Another name for platelets
A condition caused by a lack of dietary iron and a resulting shortage of hemoglobin
AKA cardiac pacemaker; starts each systole
One of the lower chambers of the heart that pushes blood into the arteries
A compound secreted by platelets that constricts smooth muscles in blood vessels
Valves between the atria and ventricles of the heart; AKA AV valves
The heart's relaxation and filling with blood
The name of the artery that brings blood to and the veins that carry blood from the lungs
To cause the clumping together of blood cells when blood types are not matched properly in a transfusion
Liquid carrier of nutrients, hormones, and gases that moves through the circulatory system
Artery in lower arm often used to measure pulse
The vena cava that returns deoxygenated blood from body regions below the heart
One of the upper chambers of the heart that receives blood from different parts of the body
Cell fragments that lack a nucleus; play an important role in formation of blood clots
Tiny vessels that connect arteries to veins; are the functional units of the circulatory system
Down
AKA Red blood cells; Begin life with a nucleus but it is squeezed out on maturation
The vena cava that drains deoxygenated blood from body parts above the heart, including arms and hands
The large vessel that carries blood from the left ventricle out to the body
Blood vessels that carry blood to the heart
Disease resulting from the buildup of plaque on blood vessel walls
Three- flapped AV valve between the right atrium and the right ventricle
AKA White blood cells whose function is immunity
Hollow muscular organ that serves to pump blood throughout the body
Name of the system that transports blood throughout the body
Thin layer of epithelial tissue lining the inner surface of the myocardium
A fibrous sac that loosely covers the heart and prevents it from rubbing against the lungs and inner chest wall
Outermost layer of the heart: is composed of connective tissue that is tightly attached to the muscular tissue of the heart
Insoluble threads of protein that form a microscopic meshwork that in turn entangles blood cells and creates a blood clot
An abnormal clot that forms within a vessel
Blood vessels that carry blood away from the heart
Circulation where the blood flows from the digestive organs to the liver
Short for atrioventricular; Node that sends impulses to the bundle of His and then on to the Purkinje fibers causing the ventricular walls to contract
The number of strokes a first-class golf player should normally require for a particular hole or course
Short for electrocardiogram; a special apparatus that can record on paper the electrical activity of the heart's conduction system