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NEET BIOLOGY Unit21 STRUCTURAL ORGANISATION IN ANIMALS

NEET BIOLOGY  Unit21 STRUCTURAL ORGANISATION IN ANIMALS Animal Tissue Animal tissue term was given by Bichat (Father of Histology). Histology term was given by Mayer. Marcello malpighi (Father of Microscopic Anatomy) – Studied in detail. Tissue is a group of cells which are similar in structure origin and function. KINDS OF TISSUES : On the basis of function and location the tissues are of four types-    EPITHELIAL TISSUE Features : It has no blood supply & cells are closely packed. Intercellular space or matrix is absent. Epithelial Tissue are of two major categories. Types of epithelial tissues - 1. Covering Epithelial Tissues include simple and compound epithelium. A. Simple epithelium- single layer of cell (i) Simple squamous Epithelium : Thinnest epithelium. Simple squamous Epithelium is tiles like, so called pavement epithelium. Example - Alveoli of lungs, Bowman's capsule of Nephron, Loop of Henle (descending limb) and thin segment of ascending li...