Circulatory System Outline

I. The circulatory system is one of the most important function in our body. It provides nutrients and oxygen to the tissues and cells and removes waste products produced by the cells. As the blood travels throughout the body, it picks up nutrients from the small intestine, oxygen from the lungs and hormones from the endocrine gland and delivers these materials to the cells. Once delivered, the blood picks up the waste products and carbon dioxide produced by the cells and transfers it back to the lungs. If this system stops functioning, the cells won’t get enough materials and soon they would start to die off. The circulatory system is an important system in the body that helps serve basic nutrients to cells, removes waste products, and

Hemoglobin is an important factor that make up the red blood cell

b. The hemoglobin in red cells is mixed with oxygen in our lungs.

B. White blood cells are the most important part of the body’s defense system.

1. Unlike the red blood cells theses cells contain a nucleus (a brain that helps a cell function) and are also much bigger.

2. The most common white blood cells are called neutrophil, they attack and destroy harmful bacteria that enter the body

a. These cells make up 60% of of the white blood cells in the blood stream.

C. Broken parts of the cells also help the blood circulation.

1. Platelets are small disk-shaped pieces of cells that are broken off from other cells in the bone marrow

2. Platelets help control bleeding in an interesting process call hemostasis

3. In this process when an injury occurs to a blood vessel, causing bleeding the platelets start to stick to the injured blood vessel and release chemicals to attract other platelets.

4. Then as more platelets start sticking together they soon form a temporary clot

V. The blood vessels guide blood and help the blood travels through our body.

A. Each vessel has a essential job that it has to do in order for the system to form

Blood clotting occurs during an injury to a blood vessel, the blood and platelets bind together to from a jelly like substance called clot.

C. Platelet, that play a fundamental role in this process also have deadly disorders.

1. Thrombocytopenia is the over production of platelets

2. This disorder leads to too much blood clotting

3. Clotting in this process can then cause the clots to travels to the brain, causing a stroke.

a. If clot travels to the heart is can cause a heart stroke

D. “Silent Stroke”

1. This stroke has a pretty accurate name “silent” because this a a symptomless stroke.

2. This stroke is caused by hypertension or high blood pressure.

3. Another reason on why someone might get this stroke might be the apparent increase of blood pumped by our heart.

VII. Examination of blood and other ways blood can be put into our body

A. Transfusion if one way that blood can be transported to us.

1. Transfusion; some people who lack in blood or have lost sever about of blood my need a transfusion.

2. It is a process of transferring blood that has been donated by other people with the same blood type

B. We can use our pulse to measure of blood