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*Epithelial tissue
Question | Answer |
---|---|
Epithelial tissue covers and lines? | Covers and lines all spaces (cavities)NOT Joints.--Cells are closely packed together with very little extracelluar fluid. |
Epithelial tissue cells are attatched to? | Underlying Connective Tissue.via basement membrane. --Avascular?= No Blood vessels. |
Epithelial Tissue has? | Good nerve supply and a high mitotic rate.- Some form glands and lines ducts. |
Exocrine and Indocrine Glands are made up of? | Epithelial Tissue. |
General Structure of Epitelial Tissue | 1.Apical Surface- Lines the space---2.Epithelial cells may be single or multiple layers---3.Basement Membranes hold the Epithelial cells to the underlying Connective Tissue. |
Basemnet membrane is made up of two Layers? | Basal Lamina and below Reticular Lamina. |
General types of Epithelium ---Covering and lining Epithelium ? | -Epidermis of skin-Lining of blood vessels and ducts (glands)Lining of respirtory, reproductive, Urinary and GI tract. |
General types of Epithelium ---Glandular Epithelium ? | -Cells secrete a product-Ex. Thyroid, Adrenal, and Sweat Glands. |
Papanicolaou Smear (Pap smear) | Collect sloughed off cells of uterus and the vaginal walls.Cells stained and studied by Pathologist.detect cellular changes (Pre-Cancerous cellsAnnually for women over 18 or if sexually active. |
Glandular Epithelium-Glands are derived from Epithelial cells that develop below the surface during development.Two types? #1? | Exocrine Glands-cells secrete a product into a Duct or into a body cavity or to the outside of the skin.Ex Sweat, Saliva, Digestive Enzymes.exist as unicellular glands or Multicellular Glands. |
Glandular Epithelium-Glands are derived from Epithelial cells that develop below the surface during development.Two types? #2? | Endocrine Glands- Cells secrete hormones.Hormones are chemicals that are secreted into the blood stream and affect the growth and metabolic activity of "Target Cells" to maintain Homeostasis.Ex. Pituitary Gland, Ovaries and Testes |