Tissues Flashcards
(30 cards)
Tissues
Cells, Extra Cellular Matrix,
Epithelial Tissue
Covers Surfaces Separates Compartments Thin - Diffusion Thick - Wear and Tear Cilium from Apical (top) Surface - Movement Microvillus - Absorption
Connective Tissue
Blood, Bone, Adipose
How does Epithelial Tissue maintain coverage?
No Contact Inhibition
Cell - Cell Junctions
Cell - ECM Junctions
Desmosomes
Cell - Cell Junctions
Adhering Junction
Function. Firm Anchorage
Eg. Absorptive Endothelium
Tight Junctions
Occluding Junctions
Function. Seals Intercellular spaces
Eg. Intestinal Endothelium
Gap Junctions
Cell - Cell Junctions
Communicating Junctions
Function. Cell to Cell Communication
Eg. Cardiac Muscle Intercalated Disks
Basement Membrane
Basal Lamina (Type 4 Collagen
Reticular Lamina
Cell to ECM Junction - Hemidesmosomes (Attach Epithilial Cells to BM)
Simple Epithelial
Consists of one layer of cells but not one type
Stratified Epithelial
Have more than one layer of cells
Epithelial
Squamous, Cuboidal, Columnar, Transitional - Stretch Pseudosratified
Glands
Collection of secretory epithelial cells
Single celled or multicellular
Exocrine
Secrete into tubes
Tubular, Acinar
Endocrine
Secrete into blood
Eg. Pancreatic Islets
Mucus Glands
Proteoglycans
Eg. Trachea
Serous Gland
Protein Rich
Eg. Exocrine Pancreas
Myoepithelial Cells
Glandular epithelium cells above basement membrane
Epithelial Components of Liver
Parenchyma - Hepatocytes (liver epithelial cell)
Supported by: Line Blood Vessels, Bile Ducts
Parenchyma
Functional epithelial tissue of an organ
Supported by: Line Blood Vessels, Bile Ducts
Epithelial Components of Kidney
Parenchyma - epithelial cells organised into Nephrons
Function: Filter Blood, Release Urine
Supported by: Line Blood Vessels, Bile Ducts
Lymph Fibre
Reticular Collagen Fibre
Connective Tissue
Aorta
Elastic Fibres
Connective Tissue
Tendon
Type 1 Collagen Fibres
Connective Tissue
Fibroblasts
Form Collagen
