Anatomy Study Guide

Unit 8 Study Guide

1 How many liters of blood does the average adult have?

About 5 liters.

2 What are the components of blood?

Red blood cells, White blood cells, platelets, and plasma.

3 What does the hematocrit measure?

The percentage of whole blood that is made up of red blood cells.

4 What percentage of blood is cells?

45% blood cells.

5 What percentage of blood is made of plasma?

55%

6 What do erythrocytes look like and what is their function?

They have no nucleus. Transport gases.

7 How do mature erythrocytes differ from immature ones?

Mature ones have no nucleus, immature ones have a nucleus.

8 What is a normal RBC Count?

4,600,000 cubic centimeters is normal.

9 What makes blood red?

Hemoglobin

10 How long does the average RBC live?

100-120 days

11 What hormone controls the rate of rbc synthesis?

Erythropoiesis

12 What element is part of a red blood cell?

Calcium

13 What is sickle-cell anemia and what is its cause?

Too many RBC’s destroyed. It is inherited.

14 What are the causes of Anemia

Iron deficiency, B complex deficiency, and erythropoietin deficiency.

15 What is the difference between sickle cell anemia and sickle trait?

Sickle cell is when you have both genes of sickle cell and you have the symptoms and everything. Sickle Trait is when you just have one gene of sickle cell but you don’t have symptoms, you’re just a carrier.

16 What percentage of white blood cells are eosinophils?

1-3%

17 What is a Lymphocyte?

It is a small, round, long-lived agranulocyte that attacks antigens.

18 What is a chemical that stimulates cells to produce antibodies?

An antigen.

19 What percent of blood is lymphocytes

25-33%

20 What is a normal white Blood Cell Count?

5,000-10,000

21 What does a rise in WBCS indicate? A decrease?

A rise indicates infection-leukocytosis and a decrease indicates viral infections.

22 What...