Tissues Flashcards
what are the 4 main tissue types?
1: Epithelial tissue
2: Connective tissue
3: Muscle tissue
4: Nervous tissue
This tissue forms sheets that cover or line the body
Epithelial tissue
This tissue provides structural and functional support
Connective tissue
This tissue contracts to produce movement or maintain stability
muscle tissue
This tissue senses, conducts and processes information
Nervous tissue
what is ECM (extracellular matrix)
internal fluid environment of the body, mostly water but often contains fibers and other substances that gives it jelly like consistency
Example of ECM (extracellular matrix) proteins are?
collagen, elastin, polysaccharides and proteoglycans
This protein forms twisted, ropelike fibers that provide flexible strength to tissue
Collagen
This protein is rubbery and provides elastic stretch and recoil in tissues
Elastin
This protein helps link cells, absorb shock, regulate function and lubricate
polysaccharides and proteoglycans
flat and scalelike
squamous
cube shaped
Cuboidal
Taller than they are wide
Columnar
varying shapes that can stretch
Transitional
This tissue
1: covers body and lines body cavities, forms tubes and ducts
2: strongly connected cells are packed closely together
Epithelial Tissue
Single layer of scalelike cells adapted for transport, as during absorption
Squamous epethelium
Several layers of closely packed cells, specializing in surface of skin
Stratified squamous epithilium
Single layer of cube like cells, often specialized for secretory activity , may secrete into ducts, blood, and on body surface
Simple cuboidal epithelium
Two or more layers of cube like cells , sometimes found in sweat glands
Stratified cuboidal epithelium
Tall column like cells arranged ina single layer with nucleinear basement membrane, contain mucus producing goblet cells, specialized for absorption
Simple columnar epithelium
Very rare in body, few cells in layer, function as extra protection at body surface
Startified columnar epithelium
Single layer of variably shaped cells, some distorted columnar, scattered nuclei, contain goblet cells, each cell touches basement membrane, function in moving mucus trapped particles
pseudostratified epithelium