Tissues
1) Based on the shape and function of its cells, epithelial tissue is subdivided further into squamous, cuboidal, columnar, ciliated and glandular.
Epithelium type | Shape of cells | Function |
Squamous | Thin and flat | Protection |
Cuboidal | Cubical | Absorption, secretion and mechanical support |
Columnar | Elongated | Absorption and secretion |
Ciliated | Cubical or columnar cells with cilia. | Moving materials, like mucus, forward. |
Glandular | Glands formed from cuboidal or columnar cells. | Secretion |
2) Connective tissue is the binding and supporting tissue of the animal body. Matrix forms the main bulk of this tissue, whereas the cells are loosely spaced and less in number.
3) Blood, bone, ligament, tendon, cartilage, areolar tissue and adipose tissue are important connective tissues present in our body.
4) Blood is a fluid connective tissue, composed of plasma and cells, and plays a significant role in the process of transportation.
5) Functions of protection, providing skeletal framework and anchoring are carried out by the strong and hard bone tissue.
6) Ligaments connect bones to bones whereas tendons connect bones to muscles.
7) Cartilage provides support and flexibility to the body parts.
8) Areolar tissue repairs the injured tissues and fills spaces within organs.
9) Adipose tissue serves as a fat reservoir and also carries out the function of insulation.
10) All movements in our body are brought about by the muscular tissue through the contraction and relaxation of their contractile proteins.
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