Blood Flashcards
(22 cards)
Cardiovascular system contains
A pump—heart
A conducting system—blood vessels
A fluid medium—blood
Functions of blood
Transport dissolved substances Regulate ph and ions Restrict fluid loss at injury sight Defense against toxins and pathogens Stabilize body temp
Components of whole blood
Plasma and formed elements
WBC, RBC, and platelets
Hemopoiesis
Process of producing formed elements by myeloid and lymphoid stem cells
3 characteristics of blood
38 degrees Celsius
High viscosity
Slightly alkaline 7.35-7.45
What percent of body weight is blood volume
7%
How many liters of blood volume do males and females have
Adult male 5-6
Adult female 4-5
Plasma proteins are made up of
Albumins—majority
Globulins
Fibrinogen
RBC count in 1 microliter of whole blood
Males 4.5-6.3 million
Females 4.2-5.5 million
Hematocrit PCV amount of RBC in whole blood
Males 40-54 PCV
Females 37-47
Life span of RBC and what do they lack
120 days
No nuclei, mitochondria, or ribosomes
Hemoglobin structure
Quarternary
4 globular proteins
Each one has a molecule of heme
Each heme has 1 iron
Normal hemoglobin in males and females
Males 14-18 g/dL
Females 12-16 g/dL
Plasma protein concentration
7.6g of protein per 100 ml of plasma
Types of white blood cells
Neutrophils Eosinophils Basophils Monocytes Lymphocytes
Neutrophils
50-70 percent Of WBC’s
First to attack bacteria
Eosinophils
Attack large parasites
And are sensitive to allergens
Basophils
Release heparin and histimine
Least numerous WBC
Monocytes
Engulf large particles and pathogens
Become macrophages
Produced by myeloid stem cells and divide to create progenitor cells
Lymphocytes
Primary cells of lymphatic system
T and B cells
Body’s defense system
T cells
Enter peripheral tissue and attack foreign cells
B cells
Produce antibodies
