V - Blood Flashcards
Blood: no nucleus/mitochondria, anaerobic glycolysis
erythrocytes
Protein that maintains the biconcave shape of the RBC
spectrin
Life span of adult RBCs
120 days
Life span of fetal RBCs
90 days
Life span of reticulocytes
1-2 days
Point mutation in the gene for the beta hemoglobin chain in RBCs
Sickle Cell Anemia
Multilobulated nucleus (2-5 lobes) connected by thin strand of nuclear materials (chromatin) with light staining very fine granules, phagocytic
neutrophils
Most abundant type of leukocyte (70%)
neutrophils
Has small golgi apparatus, sparse mitochondria and ribosomes, absent RER
neutrophils
Lifespan of neutrophils
1-4 days, half-life of 6-8 hours in blood
Hereditary immune system disorder that affects neutrophils
Chronic Granulomatous Disease
Shows the average level of blood glucose over the past 3 months
HbA1c
Bilobulated nucleus with numerous pink-orange granules, 1-3% of leukocytes
eosinophils
Highly involved in immune response against parasites especially helminths
eosinophils
Granulocyte that controls mechanisms in anaphylaxis and asthma
eosinophils
Allergic inflammatory condition of the esophagus that presents as heartburn and food impaction
Eosinphilic Esophagitis
Least common leukocyte (0.01-0.3%)
basophils
Contains large cytoplasmic granules which obscure the nucleus under light microscopy
basophils
Granulocyte that is important in immediate hypersensitivity reactions (type I) and anaphylaxis
basophils
Releases histamine, proteoglycans (heparin, chondroitin) and proteolytic enzymes (elastase, lysophospholipase)
basophils
Basophils in tissues
mast cells
Hematologic indicator of lead poisoning
basophilic stippling
Smallest leukocytes
lymphocytes
3 Main Types of Lymphocytes
T-cell, B-cell, Natural Killer Cells
Lymphocytes involved in cell-mediated immunity
T-cells
Lymphocytes responsible for humoral immunity
B-cells
Recognize non-self antigens during antigen presentation
T-cells and B-cells
Defends the host from tumors and virus infected cells
Natural Killer Cells
Natural Killer cells distinguish infected and cancerous cells from normal cells by recognizing changes in a surface molecule
MHC (major histocompatibility complex) Class I
Lymphocytes: lysis of virally infected cells and tumor cells
NK cells