Organization of the Hematological System and Whole blood Flashcards
(40 cards)
____________ is a liquid connective tissue that consists of cells surrounded by extracellular matrix.
Blood
three general functions of blood
Transportation, regulation, and protection
What function of blood?
1) Blood transports oxygen from the lungs to cells throughout the body and
carbon dioxide (a waste product of cellular respiration; see Chapter 20
Figure 20.3) from the cells to the lungs.
2) It also carries nutrients from the gastrointestinal tract to body cells, heat
and waste products away from cells, and hormones from endocrine
glands to other body cells.
Transportation
What Function of Blood?
-Blood helps regulate the pH of body fluids. The heat-absorbing and coolant properties of the water in blood plasma.
-Blood osmotic pressure also influences the water content of cells.
Regulation.
What Function of blood?
1) Blood clots (becomes gel-like) in response to an injury, which protects
against its excessive loss from the Cardiovascular System.
2) white blood cells protect against disease by
carrying on phagocytosis and producing proteins called antibodies.
3) Blood contains additional proteins, called interferons and complement,
that also help protect against disease.
Protection
True/False
Blood is denser and more viscous (thicker) than water
True
Blood temperature is about what?
38°C (100.4°F).
PH range for blood
7.35 to 7.45
Blood constitutes about what % of the total body weight?
8%
Average blood volume in an adult male
5-6 L
Avg blood volume in an adult female
4 to 5 L
The two portions of blood
Blood Plasma
Formed Elements
What portion of blood is the cells and cell fragments
Formed elements
What portion of blood is the liquid extracellular matrix that contains dissolved substances?
Blood plasma
Blood is about __% formed elements.
1) More than __% of formed elements are red blood cells, the rest consist
of white blood cells and platelets.
2) Pale, colorless white blood cells (WBCs) and platelets occupy less than
__% of total blood volume.
45%
99%
1%
The remaining 55% of the blood volume is the liquid portion of the blood known as ____
Plasma
_____ is the percentage of total blood volume occupied by red blood cells.
Hematocrit (HCT)
HCT is expressed as a percentage
Normal range for males ____
Normal Range for females _____
M: 42%- 52%
F: 37%-47%
What is this ?
Made up of the WBCs and platelets which are <1% of
total blood volume.
very thin layer, lies between the packed RBCs
and blood plasma in centrifuged blood.
Buffy coat
______ is about 91.5% water, 7% proteins, and 1.5% solutes other than proteins
Blood Plasma
The most plentiful plasma proteins are the ___________, which account for about 54% of all plasma proteins
albumins
Proteins in the blood are synthesized mainly by what organ?
Liver
Hemoglobin transports about ___% of Carbon dioxide in the blood
23%
A healthy adult male has about ____ RBC per uL of blood
5.4 M