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Animal Tissue

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Published in: Biology
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As we know that Cell is the smallest unit of our body.When the group of cell get together and responsible for a particular function of body than that group of cell is known as tissue.

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  1. Epithelial Squamous Animal Tissue Connective Areolar Adipose Skeletal Muscular Striated Smooth Cardiac Blood Lymph Nervous Fluid Cuboidal Tendon Columnar Ligament Ciliated Glandular Classification of Animal Tissue 1. Epithelial Tissue: Bone Cartilage Epithelial tissue is made up of epithelial cells which form the protective cover of the body in the form of skin. These tissues act as a barrier between different organs so that they can function individually without any interruption. They play a significant role in the protection, secretion, filtration and adsorption process of the body. The lining of the mouth, blood vessels, lung alveoli, kidney tubules all are made up of epithelial tissue. Epithelial tissues can be divided into different categories by: a) b) Squamous Epithelial Tissue: This name is derived from a Latin word 'squama' which means the scale of a fish. As the name suggests, it looks like a scale or a single thin line. They are soft in nature. Squamous Cuboidal Epithelial Tissue: It is a type of epithelial tissue which consists of cuboidal cells.
  2. c) 2. Cuboidal Columnar epithelium tissue: It is a uni-layer epithelial tissue comprised of columnar cells. Columnar Muscular tissue: Muscular tissue is one of the four kinds of animal tissues found in the animal body. It is soft in nature and contains contractile protein which can contract and relax, due to which there is movement in various parts of the body. These muscles can be broadly divided into two types: A) B) C) D) Voluntary muscles: These muscles help in voluntary actions. They are the most abundantly found tissue in the body. One of the interesting facts is that about 200 muscles of a human body are used to make a step. These are long, unbranched, cylindrical and multinucleated. When we look into the muscles through the microscope, we observe a band like structure. Hence, it is also known as striated tissue. Involuntary muscles: These are the muscles which help in the spontaneous actions. For example : Iris movement in the eye and bronchi movement in the lungs. Smooth muscles: These tissues have non-striated structure. Hence called unstriated These are small sized, tapered, uni-nucleated tissues. Cardiac muscles: These muscles are striated in structure and are branched cylindrical and uni- nucleated tissue. They are found in the heart of living organism 3) Connective Tissue: It is another type of animal tissues. It connects, binds and supports various organs in the body. They include bones, blood, and fats.
  3. a) Blood: Blood is the fluid that transports nutrients and oxygen to the cells of the body. It has two components namely: Plasma: Blood consists of colorless fluid called plasma (contains water, proteins, salts, and hormones). Blood cells: Three types of blood cells are Red blood cell (RBC) or erythrocytes, white blood cell (WBC) or leukocytes and platelets or thrombocytes. b) Bones: Bones are the living tissues that provide support and protection to various organs. c) Fats: Fats are connective tissues specialized in insulation against cold and storage. 4) Nervous Tissues: Nervous tissue is the fundamental component of the peripheral nervous system and central nervous system. They consist of specialized cells called neurons and glial cells. Nervous tissues are specialized to transmit electrical impulses rapidly throughout the body. Hence, these animal tissues help us to react to stimuli like touch, sight, smell, and hearing d rites Body Structure Of

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