Circulatory, Lymphatic, and Immune Systems

Composed of cardiac muscle; cells make contact with other cells to allow electrical activity to spread easily from one cell to the next

Innermost layer; made up of endothelial cells

4 Chambers of the heart

Divides the two atria

4 valves of the heart

Another word for heart attack

Contraction; develops pressure and forces blood through the system

Relaxation; allows the chamber to fill again

What is blood pressure measured by?

The measure of the force of blood on the arterial walls

(Blood Vessels) Outer layer; composed of connective tissue

Middle layer; made of smooth muscle

Inner layer; composed of a single layer of endothelial cells

Located deeper than veins; can be found by feeling for the pules

Arteries branch into smaller vessels called...

Occurs when the heart receives inadequate blood supply through the coronary arteries

Resulting lack of oxygen from MI which causes damage to the muscle

Tests used to diagnose an MI are testing for what?

CK total, CK-MB fraction, Myoglobin, Troponin 1, Troponin

The smallest veins

The area just distal to the elbow joint where blood is usually drawn

Most prominent veins on the anterior surface

An average adult has how many liters of Blood?

Blood is composed of ... (the fluid portion) and cellular components called the ... ...

Constitutes 55% of the volume of blood; 90% water

Responsible for blood clotting

A plasma sample is collected in a tube containing an ..., a chemical that keeps blood from clotting

Constitutes 45% of blood volume

An RBC without a nucleus

An RBC remains in the peripheral circulation about ... days before being removed by the liver, spleen, or bone marrow

... or ... protects the body against infection

Role is to attack and digest bacteria, and their numbers increase during a bacterial infection

Created in the bone marrow from megakaryocytes; membrane-bound packets of cytoplasm

Refers to the processes by which blood vessels are repaired after injury

Rupture of a vein or artery causes this; contraction of the smooth muscle lining the vessel

AV=

A chamber of the heart

Thick muscular walled vessels which carry blood away from the heart

Smaller arteriole branches leading to capillaries

The largest artery of the body

Carry blood from the heart to capillaries

Accumulation of interstitial fluid

A coordinated, nonspecific defense against infection or irritation

An inappropriately sever immune reaction to an otherwise harmless substance

An attack by the immune system on the body's own tissues

Carries blood between the heart and the rest of the body's tissues

Carries blood between the heart and the lungs

Which blood vessels are the smallest, composed of a single layer of endothelial cells?

Most blood tests are performed on venous blood. Why?

What does the circulatory system do?

Organs of the lymphatic system

The wall of a terminal lymphatic vessel is an endothelial layer that is ... thick

Lymphatic fluid is derived from the fluid between cells, called...

A tumor of a lymph gland

Blood transports ... and ...

How does blood flow?

Plasma without its clotting factors

A bulge in a vessel, usually an artery, caused by weakening of the wall or hypertension

Does not allow blood to clot

Return blood to the heart

Heart is surrounded by this membranous sac; supports and lubricates the heart during contraction