University:
Coventry University
Course:
B940 | Biomedical Science
Academic year:

2024
Views:

190

Pages:

2
Author:

Badusha S

Cellular Adaptations Types of adaptations; Hypertrophy:- Increase in the size of the tissue os organ due to increase in the size of cells. Causes: physiological: Hypertrophy of skeletal muscle. pathological: Hypertrophy of cardiac muscle. Morphology: Carross: Organ is enlarged Microscopy: Ase in size of cells as well as much as. 2. Hyperplasia The in the no. of cells in an organs os fissue, resulting in Tired size /mass of the organ's cause. Canver: physiological: Nyperplasia adue las hormones. pathological: Excessing hormonal stimulation Atrophy:-1 It is the reduced size of an Organ cas tissue resulting from a dise in cell size & number. 4. Metaplasia It is a reversible change in which another adult cell type replaces one adult cell type. Causes: Metaplesia is wually fully reversible adoptive response to chronic persistent injury. Mainly seen in association wits tissue damage, repair & regeneration. The replacing cell lype is usually more suited to a chang is environment. Types of neoplasia: 1. Gpithelial metaplasia: It is the most common type. 2. Squamous metaplasia: Original epithelium is replaced by Squamous epithelium. •Respiralary bact: due to tobacco smoke, the normal Ciliated calumnies epithelial cells of the trachea and bronchi undergo squamous metaplasia. •Cervixs squamous metaplasia in cervix is associated withs chronic infection. 3. Columnae metaplasia:- Columnar epitheliums replace original epithelium. Squamous to columnas. Intestinal metaplasia. 4. Connective Tissue metaplasia. Oseom metaplasia: formation of new bone at sites of tissue injury is known as osseous metaplasia