Part 2 - Principal Tissues Of The Body Flashcards
Functions of epithelial tissue
1 Protection 2 Transcellular transport 3 Secretion 4 Absorption 5 Selective permeability 6 Detection of sensation
Forms of epithelial tissue
1 Epithelia
2 Glands
Sheets of contiguous cells
Epithelia
Which originates from invaginated epithelial cells
Glands
Embryonic germ layers
1 Ectoderm
2 Endoderm
3 Mesoderm
Tubules of the kidney, lining of the male and female reproductive system
Mesoderm
Classification of epithelia
1 Squamous
2 Cuboidal
3 Columnar
4 Pseudo-stratified
Flattened surface for lubrication
Squamous epithelia
Cubodial in surface and for secretion, absorption and protection
Cuboidal epithelia
Columnar in surface, for transportation, absorptions, secretion and protection
Columnar epithelia
All cells rest on basal lamina but not all reach epithelial surface, SHAPE
Pseudo-stratified epithelia
Composed of cells and extracellular matrix
Connective tissue
Ground substance and fibers
Extracellular matrix
2 important things for connective tissue
1 Cells
2 Fibers
Function of connective tissue
1 Support
2 Medium for exchange
3 Protection
4 Storage of fat
2 cellular components in connective tissue
1 Fixed cells
2 Transient cells
Resident population of cells, stable and long-lived population
Fixed cells