Chapter 18: Blood Flashcards
Cardiovascular system refers to?
Just the heart and blood vessels
What is the circulatory system?
The heart blood vessels and blood
Hematology is the study of what?
Blood
What are the main functions of blood?
Transport - nutrients hormones gasses
Protection- inflammation destroy invading organisms neutralize toxins
Regulation- fluid distribution ph body temperature
What is plasma?
Liquid portion of blood including albumins globulins fibrinogen
What is serum ?
Plasma munis the fibrinogen
What precursor cell produced erythrocytes?
Pluripotent stem cell
Nitric acid does what in the blood?
Vasodilates and increases blood flow
What is polycythemia?
Excess rbc
Either from cancerous rbc or from lack of fluid
What is anemia?
Most common blood disorder.
Inadequate rbc or hemoglobin excessive bleeding or destruction of rbc
Can cause kidney failure iron deficiency lack of vitamin b12
Which type of cell is the least abundant formed element in the blood?
Leukocytes
How is a leukocyte formed?
Cytokines (colony stimulating factor) stimulate other leukocytes and stem cells to make more cells.
Which leukocytes are granulocytes?
Neutrophils eosinophils and basophils
Which leukocytes are agranulocytes?
Lymphocytes and monocytes
What kind of infection would have an increase in neutrophils?
Bacterial infection
Neutrophils phagocytize Bacteria
First to arrive at a wound site