Lap 5: Histology Flashcards
Histology
study of tissue structures
Transitional Epithelium is ___ (stratified/simple) found in____
stratified; urinary tract, bladder and urethra and changes shape to contract (ex. dome shaped to flat when stretched.
Simple Epithelial Tissue have ___ layer (s) and include ___
one layer
- simple squamous
- simple cubiodal
- simple columnar
4 types of Tissue
- connective tissue
- muscle tissue
- epithelial Tissue
- nervous tissue
Each tissue has 2 components of ___ and ___
unique tissue type cells; ECM (produced by the cells)
ECM (extra cellular matrix) consists of ___ and ___
ground substance; protein fibers
Epithelial Tissue
cover and line body surfaces, lining body passageways, body cavities, and forming glands
Epithelia contains cells called ___ and ECM in layer called ___
epithelial; basal lamina
Basement membrane is made up of
Basal lamina and lamina reticularis
Epithelia are vascular or avascular?
Avascular (rely on diffusion from deeper tissues
Simple squamous
- flat cells with a flattened nucleus
- found in air sacs of lungs
Simple cuboidal
- as wide as they are tall with a round nucleus
- lines glands, kidneys and respiratory tract
Simple columnar
- taller than they are wider
- line respiratory passages, digestive tract, and genitourinary tract
Stratified epithelium
two or more layers
Stratified Keratinized squamous (what are they made up of and found where)
- are keratinized epithelial cells
- well made to resist mechanical stress
- found in outer layer of skin