Lecture 18- Blood Flashcards
0
Q
Blood fibers
A
Fibrinogen (clothing fibers), albumin (import for osmotic pressure)
1
Q
Blood
A
•Connective tissue
•2 types of cells
1. RBCs
2. WBCs
2
Q
Blood ground substance
A
Plasma= 90% H2O
ions= Na, Cl-, K+
3
Q
RBCs
A
- Contain hemoglobin
- Biconcave disks to maximize surface area
- 7.5M~Same size diameter of capillary(to max diffusion)
4
Q
Name the levels of a tube and %
A
- Plasma= 55%
- Buffy Coat= WBCs & Platelets= 1%
- Hematocrit= % of RBCs by volume= 45%
5
Q
The 2 types of WBCs
A
- Agranulocytes
* Granulocytes
6
Q
2 types of Agranulocytes & define.
A
- Lymphocytes= T-direct a specific immune response ➡️ T4 (T-helper cells)➡️ attacked by HIV virus
- Monocytes= Leave circulation (diapedesis) & become macrophages.
7
Q
3 types of Granulocytes & define.
A
- Basophils= Contain histamine granules (Cause capillary leakage)
- Eosinophils= Terminate allergic reactions, help kill parasites.
- Neutrophils= 1. PMNS (Many lobes to nucleus) 2. Phagocytose bacteria (eat them).
8
Q
Name the WBCs starting from greatest in # to least in #.
A
Never Let Monkeys Eat Bananas •Neutrophils •Lymphocytes •Monocytes •Eosinophils •Basophils
9
Q
Define platelets
A
Sacs of clothing factors that bud off megakaryocytes in bone marrow.
10
Q
Define hemopoiesis
A
Production of blood cells in bone marrow.
11
Q
Define anemia
A
Decreased oxygen carrying capacity:
•Low cells (or)
•Low hemoglobin
12
Q
Define diapedesis
A
Moving of white blood cells from blood to tissues.
