Chapter 10.txt

In the thoracic cavity cradled between the lungs.

the area of the chest covering the heart

The thin double walled membranous sac that surrounds the heart

The outer covering of the sac.

The inner layer of the sac. The thin tight covering over the heart surface.

The small space betweent eh two layers.

• Epicardium- Outer layer
• Myocardium- Middle muscular layer
• Endocardium- Inner layer

Left and Right Atria-Receiving chambers

Left and Right Ventricles- The pumping chambers

Wall betweent the left and right side of the heart

Dividing the Atria

Dividing the ventricles

Brings blood from the head, thorax, and upper limbs.

Brings blood from the trunk, abdominal viscera, and lower limbs.

A valve that deoxygenated blood passes through.

Carries oxygen poor blood to the capilary network of the lungs.

The circulation of the blood from the heart to the lungs for oxygenation and back to the heart 

The veins that return oxygenated blood to the heart.

The circulation of the blood from the heart to all parts of the body and back to the heart

Supply blood to the heart muscle

Methodically generates and conducts electrical impulses throughout the myocardium, and creates the rhythmic contraction of the heart.

Large thick walled vessels that carry blood away from the heart

Thin walled arteries composed of smooth muscle carry blood to the capillaries

Allow for the exchange of material between the blood and the tissue fluid surounding the body cells

The smallest veins which collect deoxygenated blood from the cells for transport back to the heart

One cardiac cycle is equivalent to one complete heart beat

Phase of the cardiac cycle forcing blood out of the heart

Phase of the cardiac cycle allowing the heart to refill with blood

Carries blood back to the lungs for oxygenation

The pressure exerted by the blood on the walls of the arteries

Maximum Pressure

Minimum Pressure

Any deviation from the normal pattern of the heartbeat