BIOL 2221 Lecture Notes - Lecture 4: Basal Lamina, Parathyroid Gland, Adrenal Gland
Document Summary
Functions: protection, absorption, filtration, excretion, secretion, sensory reception. Polarity- they have separate sides *apical side (exposed to the outside of the body or inside hollow organ on the inside) *basal surface (basement membrane- area where epithelial tissue and connective tissue meet {basal lamina and reticular lamina}) Avascular (no rich supply of blood) but innervated (have nervous supply) 4. 3a simple squamous epithelium- single layer of flattened cells. Location: kidney glomeruli; air sac of lungs, lining of heart, blood vessels, and lymphatic vessels; lining of ventral body cavity. 4. 3b simple cuboidal epithelium- single layer of cubelike cells. Secretion (making a production) and absorption (movement) Location: kidney tubules; ducts and secretory portions of small glands; ovary surfaces. 4. 3c simple columnar epithelium- single layer of tail cells with round oval nuclei. (goblet cells) Location: digestive tract (stomach to rectum), gallbladder, and excretory ducts of some glands; ciliated variety lines small bronchi, uterine tubes, and some regions of the uterus.
