Animal Tissues

In Glogpedia

by ammujesus99
Last updated 7 years ago

Discipline:
Science
Subject:
Biology
Grade:
9

Toggle fullscreen Print glog
Animal Tissues

Cells of the nervous tissue are highly specialised for being stimulated and then transmitting the stimulus veryrapidly from one place to another within the body. The brain, spinal cord and nerves are all composed of the nervous tissue. The cells of this tissue are called nerve cells or neurons.An individual nerve cell may be up to a metre long. Many nerve fibres bound together by connective tissue make up a nerve.

Types Animal Tissues

The cells of connective tissue are loosely spaced and embedded in an intercellular matrix. The matrix may be jelly-like, fluid, dense or rigid. Connective tissues present in our body are:-(1)BLOOD-has fluid matrix called plasma(2)BONE-bone cells are embedded in a hard matrix composed of calcium and phosphorus compounds.(3)LIGAMENT-it is elastic,contain little matrix and has considerable strength.(4)TENDON-fibrous tissue, has great strength but limited flexibility.(5)CARTILAGE-smoothens bone joints ,present in the nose,ear,trachea and larynax.(6)AREOLAR-found between the skin and muscles, around blood vessels and nerves and in the bone marrow. It fills the space inside the organs, supports internal organs and helps in repair of tissues

(1)SIMPLE SQUAMOUS EPITHELIUM-Simple squamouS epithelial cells are extremely thin and flat and form a delicate lining. The oesophagus and the lining of the mouth are also covered with squamous epithelium.(2)STRATIFIED SQUAMOUS EPITHELIUM-Skin epithelial cells are arranged in many layers to prevent wear and tear. Since they are arranged in a pattern of layers, the epithelium is called stratified squamous epithelium.(3)COLUMNAR EPITHELIUM-columnar (meaning ‘pillar-like’) epithelium facilitates movement across the epithelial barrier. In the respiratory tract, the columnar epithelial tissue also has cilia, which are hair-like projections on the outer surfaces of epithelial cells. These cilia can move, and their movement pushes the mucus forward to clear it. This type of epithelium is thus ciliated.(4)CUBOIDAL EPITHELIUM-Cuboidal epithelium (with cube-shapedcells) forms the lining of kidney tubules and ducts of salivary glands, where it provides mechanical support.

Muscular Tissue

Epithelial Tissue

Muscular tissue consists of elongated cells, also called muscle fibres. This tissue is responsible for movement in our body.Muscles contain special proteins calledcontractile proteins, which contract and relax to cause movement.The muscles of the heart show rhythmiccontraction and relaxation throughout life.These involuntary muscles are called cardiacmuscles . Heart muscle cells arecylindrical, branched and uninucleate.

TEJIDOS CONJUNTIVOS LAXOS.

Fats storing adipose tissue is found below the skin and between the internal organs. The cells of this tissue are filled with fat globules. Storage of fats also lets it act as an insulator.

Connective Tissues

Nevrous Tissue


Comments

    There are no comments for this Glog.