Question | Answer |
Tissue | a group of cells and cell products that perform specific functions |
What are the four types of tissues? | Epithelial, Connective, Muscular, Nervous |
Explain Epithelial Tissue | Consists almost entirely of cells
Covers body surfaces
Locations Heart and blood vessels |
Epithelial Tissue Cell connections | Form permeable layer, Binds cells together,
Types Desmosomes, Tight Junctions |
Desmosomes | Found in areas that are subjected to stress
Striated squamous epithelium of the skin |
Tight Junctions | join the cell tightly to the neighboring cells, form permeability
Simple epithelium, stomach and urinary bladder |
Gap Junctions | Allows ions and small molecules to pass through
Coordinates function of cardiac and smooth muscle |
Simple Squamous | Single layer
Rapid transportation
Mesothelium and endothelium |
Simple Cuboidal | single layer square or round cells
absorption and secretion
Liver and glands |
Simple Columnar | single layer tall narrow cells
absorption and secretion
stomach and intestines |
Psuedostratified columnar | single layer
secretes propels mucus
resritory tract and portions of male urethra |