BIOL 1117 Lecture Notes - Lecture 10: Loose Connective Tissue, Basement Membrane, Serous Fluid

• School: Northeastern University
• Department: Biology
• Course: BIOL 1117
• Professor: Christopher Richardson

Document Summary

Anatomy and physiology: histology, the primary tissue classes i. ii. Histology: the study of tissues and how they are arranged to create organs. Glycosaminoglycan (gag) : negatively charged which pulls water towards it. Proteoglycans/glycoproteins : complexes that bind molecules to form tissues: tissue fluid//extracellular fluid, composed of water, minerals, gasses, nutrients, etc, four tissue groups, differ by structure and function, characteristics in the matrix i. Epithelial: consists of a flat sheet of adhering cells, covers bodies surface and lines cavities, basement membrane anchors epithelium to loose connective tissue, functions, protection, secretion, absorption, excretion, filtration and sensations, simple vs stratified, simple i. Every cell touches the basement membrane: stratified, more than one layer ii. Only the deepest cells with make direct contact with the basement membrane: structure // function of epithelial, squamous cells i. ii. Produce serous fluid, which is a lubricant: cuboidal cells i. Tall and narrow with lots of microvilli - increases surface size of molecules.