are groups of cells that are similar in structure and function.
Four Types of Tissues
The four types of tissue are epithelium, connective tissue, nervous tissue, and muscle tissue. The epithelium covers, the connective supports, the nervous controls, and the muscle moves.
The epithelial tissue functions include protection, absorption, filtration, and secretion.
The connective tissue is primarily involved in protecting, supporting, and binding together other body tissues.
The nervous tissue have two major functions, which are irritability and conductivity.
The muscle tissue function to contract, shorten, and to produce movement.
Epithelium fit closely together, the membranes always have one free surface or edge, lower surface rests on a basement membrane, have no blood supply of their own, and they can regenerate easily if they're well nourished.
Connective tissues vary in blood supply and they have extracellular matrix.
Nervous tissues have supporting cells that insulate, support, and protect the neurons and they make up the structures of the nervous system.
Muscle tissues consist of skeletal muscles, cardiac muscles, and smooth muscles.
Specializations of Epithelia
Epithelia can be classified into simple, simple squamous, simple cuboidal, simple columnar, pseudostratified columnar, stratified, stratified squamous, stratified cuboidal, stratified columnar, transitional, and glandular.
Where The 4 Types of Tissues Can Be Found
The epithelial tissue can be found in kidney tubules, stomach lining, human trachea, esophagus, and in the bladder lining.
The connective tissue can be found in bones, trachea, cartilage, tendons, areolar, human blood, and beneath the skin.
The nervous tissue can be found in neurons and they support the forming of the brain, spinal cord, and nerves.
The muscle tissue can be found in skeletal muscle, cardiac muscle, and smooth muscle.