PLN 103 Lecture Notes - Lecture 4: Basal Lamina, Cell Junction, Greater Omentum
16 Nov 2015
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Document Summary
Tissues: structures with discrete structural and functional properties, collections of cells and cell products that perform specific and limited functions. Limited: genetics, what the code is doing to drive the cells functionality. Greater omentum: stores nutrients to supply energy to surrounding tissues, it will alter composition with changes in body weight but never go back to its natural weight after a dramatic shift in weight. Muscle tissue: specialized for contraction, skeletal + heart muscle, and walls of hollow organs. Neural tissue: carries electrical signals from one part of the body to another. Epithelia: layers of cells covering internal/external surfaces, lines cavities, has the same tissue type that forms glands (endocrine/exocrine). Epithelial cells can regenerate due to formation of stem cells, receive nutrients from the basement membrane. Connective: ligaments: protect and provide nutrition for the organ systems they intervene with, transports materials, stores energy, fills internal spaces and supports other tissues.
