Basic Histology Flashcards
Formalin is best fixative for
Nervous Tissue
Organ/ tissue smaller than normal ; change happen at the start
Retrogressive changes
Incomplete/defective development of tissue/organ
Aplasia
non-appearance of an organ; failure of an organ to developed
Agnesia
failure of an organ to reach its full mature size
Hypoplasia
failure of an organ to form an opening
Atresia
Decrease in cell size of the normally mature/tissue/organ
Atrophy
wasting or shrinkage of tissues, particularly muscles, due to inactivity or reduced mechanical load.
Atrophy of Disuse
refers to the shrinking or degeneration of tissues or organs due to prolonged stress, overuse, or chronic stimulation, leading to cellular exhaustion and metabolic dysfunction
Exhaustion atrophy
refers to the shrinking or degeneration of tissues or organs due to prolonged stress, overuse, or chronic stimulation, leading to cellular exhaustion and metabolic dysfunction
Exhaustion atrophy
Tissue size increase bec size of individual cell; uterus during pregnancy
Hypertrophy
tissue size increase bec of INCREASE NUMBER of cells; there is CELL DIVISION/REPLICATION
Hyperplasia
reversible change involving transformation in one type of adult cell to another; chronic smoker
Metaplasia
reversible change involving transformation in one type of adult cell to another; chronic smoker
Metaplasia
a pathological condition characterized by abnormal growth and differentiation of cells within a tissue. It often represents a precancerous change; can go back to normal if the cause (like smoking or infection) is removed, but if ignored, it might turn into cancer.
Dysplasia
cells are undifferentiated, meaning they do not resemble the normal cells of the tissue from which they originated. This is a hallmark of malignant tumors
Anaplasia
continuous abnormal proliferation of the cells without control
Neoplasia
best typf of fixative for EXFOLIATIVE CYTOLOGY
equal parts of ETHANOL and ETHER
What type of cell comprises ducts of glands and walls of thyroid follicles?
Simple Cuboidal tissues
A type of cells comprises in Bowman’s capsule, endothelium of blood vessels, loop of henle, lung alveoli
Simple Squamous tissue
Cells comprises in Gallbladder (non-ciliated) Uterine tube (ciliated)
Simple Columnar tissues
Cells comprises in Skin epidermis (Keratinized) Vagina, Cervix, Esophagus(non-keratinized); Fish scale look like
Stratified Squamous Tissue
Ducts of Sweat Glands comprises of
Stratified Cuboidal
A type of cell that comprises male Urethra
Stratified Columnar
A tyoe of cell that comprises Urinary Tract
Transitional
A type of cell that comprises female reproductive tract (non-ciliated) Trachea (ciliated
Pseudosratified Columnar
