3100:201 Lecture Notes - Lecture 4: Tight Junction, Extracellular Fluid, Epithelium
Document Summary
1: multicellular structure - contains cells of similar type, cells and matrix, matrix extracellular material, proteins, mineral salts, fluid surrounding cells interstitial fluid (part of ecf, cell membranes form tight seal, prevents fluid from moving between cells. 2: leukocytes, migrate into connective tissue in response to trauma, extracellular matrix, protein fibers, collagen, elastic, reticular, ground substance. 5: epithelial membranes, epithelium, connective tissue, mucous membranes, water and organic molecules; ex. 1. movement, generate heat: contractile, excitable cells - membrane potential, skeletal, cardiac, smooth. Nervous tissue: glia, neurons, neurons produce action potentials, glia supportive to neurons, rapid signaling in response to stimuli, excitable cells - membrane potential. Gastric juice is very acidic and if it contacts underlying connective tissue, it will damage the tissue. Muscle tissue, subjected to mechanical stress, contains this type of junction. Checkpt questions: 1-3, 5, 7, 10 (first part), 11, 12, 16, 18, 20.
