PMS Blood Cells, Immunity, and Blood Coagulation Exam

PMS Blood Cells, Immunity, and Blood Coagulation Exam



1. What is blood?: - a connective tissue composed of a liquid portion called plasma and a cellular portion


consisting of various cells and cell fragments

2. What are the components of blood?: 55% plasma


45% RBCs

Small percentage of WBCs and platelets in buffy coat

3. What does plasma consist of?: - plasma proteins, including:


- albumins
- globulins (immunoglobulins/antibodies)
- fibrinogen


- waste moelcules
- nutrient molecules
- enzymes
- hormones
- gas
- electrolytes

4. What are the formed elements of blood?: - Erythrocytes (RBCs)


,- Leukocytes (WBCs)
- Platelets (thrombocytes)

5. What are the granular leukocytes?: Have granules in cytoplasm


- neutrophils
- basophils
- eosinophils

6. What are the agranular leukocytes?: - Lymphocytes (T cells and B cells)


- Monocytes

7. Does serum have proteins?: NO


8. What are the main components of RBCs and their function?: HEMOGLOBIN


- RBCs transport hemoglobin, which carry oxygen


ENZYMES
- contain carbonic anhydrase, which converts CO2 to bicarbonate
- serves as an acid-base buffer






, 9. What is the shape and relevance of RBCs?: Biconcave discs


- help RBCs pass through capillaries

10. What are the key RBC indices?: Hemoglobin concentration


- up to 34 g/dL in cells and about 15 g/dL in blood
- NO FREE hemoglobin plasma (only during hemolysis)


RBC count
- number of RBCs in a mcL


Hematocrit
- % of blood made up of RBCs


Mean Corpuscular Volume (MCV)
- average size of RBCs


Mean Corpuscular Hemoglobin (MCH)
- average concentration (weight) of hemoglobin in each RBC


Mean Corpuscular Hemoglobin Concentration (MCHC)
- average concentration (weight) of hemoglobin in a certain amount of blood