Intro to Blood Flashcards
1
Q
Functions of blood
A
- transportation of dissolved gases, nutrients, hormones, metabolic wastes
- defending against toxins and pathogens
- stabilizing body temp
2
Q
Characteristics of blood
A
- 38 degrees celsius
- 5x more viscous than water
- pH 7.35-7.45
- about 7% of body weight
3
Q
Components of blood
A
plasma and formed elements
4
Q
What is in plasma and formed elements?
A
formed elements - erythrocytes, leukocytes, platelets
5
Q
How much of blood volumes constitutes plasma and formed elements?
A
plasma - 55%
formed elements 45%
6
Q
Proteins found in blood plasma
A
albumin, globulin, fibrinogen
7
Q
Hematocrit definition
A
aka packed cell volume; percentage of whole blood volume composed of erythrocytes
8
Q
Blood osmolarity definition
A
amount of dissolved material in blood that cannot pass through the blood vessels
9
Q
What is hematopoiesis
A
blood cell production
