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Cardiovascular System
Functions of Cardiovascular System
21
Physiology
11th Grade
03/14/2014

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Term
Blood
Definition
The only fluid tissue in the human body
*5-6 liters of blood (8 percent of body weight)
Term
Characteristics of Blood
Definition
Color: Oxygen rich- scarlet red
Oxygen poor- dull red PH must remain between 7.35-7.45. Blood temp is higher than body temp.
Term
Blood Plasma
Definition
55% of blood. Composed of 90& of water.
Term
Albumin
Definition
regulates osmotic pressure
Term
Clotting Proteins
Definition
Helps to stem blood loss when a blood vessel is injured. Fibrinogen
Term
Antibodies
Definition
Helps protect the body from antigens
Globulins
Term
How much percent of blood is formed elements?
Definition
45%
Term
Erythrocytes
Definition
-Red blood cells
-Hematocrit
Term
What is a Buffy Coat?
Definition
-the white layer between the plasma and formed elements
Term
Leukocytes? What percent?
Definition
-White blood cells
-1%
Term
What are platelets?
Definition
-Cell fragments
Term
Erythrocytes (RBC)
Definition
-the main function is to carry oxygen
-Outnumber WBC 1000:1
Term
What is Hemoglobin?
Definition
-Iron-containing protein
-binds strongly to oxygen
Term
What are leukocytes crucial for?
Definition
-body's defense against disease
Term
Describe the anatomy of Leukocytes(WBC)
Definition
- they are complete cells with a nucleus and organelles
Term
How do Leukocytes move?
Definition
-move by ameboid motion
Term
What can Leukocytes respond to?
Definition
-chemicals released by damaged tissue
Term
Norman leukocytes level in blood
Definition
4,000-11,000 cell per mm
Term
Leukocytes- abnormal level (Leukocytosis)
Definition
above 11,000 leuk/mm
generally indicates infection
Term
Leukopenia
Definition
Abnormally low leukocyte level
commonly caused by certain drugs
Term
What does blood plasma include?
Definition
nutrients, salts, respiratory gases, hormones, proteins, waste products
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