BIOL 1202 Lecture Notes - Lecture 2: Loose Connective Tissue, Epithelium, Muscle Tissue
7 Dec 2016
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Document Summary
Entire plasma membrane is exposed to medium. Body wall is only 2 cell-layers thick. Animal form and function are correlated at all levels of organization. Physical laws, especially physics of exchanging materials with environment, limits range of animal forms. The basic scheme of organization involves cells organized into tissues organized into organs organized into organ systems. Composed of cells with similar structure and function. Non-cellular components made by the cells (i. e. , bone and cartilage). There are four general types of tissue (see 40. 5): Large, complex animals have highly folded or branched internal surfaces. Cell in these surfaces are specialized for exchanging materials. Includes the layer beneath the skin called the loose connective tissue, fibrous connective tissue, cartilage, bone, adipose, blood and lymph. Because of this the epithelial tissue has no blood vessels. Membranes cover the body and line all body cavities. The main function of the epithelial tissue is to form a barrier and the cells are closely joined.
