Animal Tissue - Types, Structure. The animal cells are grouped together to form animal tissues. These tissues vary in their structure, function, and origin. The animal tissues are divided into epithelial, connective, muscular and nervous tissues. Let us have a glimpse of each type of animal tissue in detail.
- Tissue.
- Epithelial tissue.
- Connective tissue.
- Muscle tissue.
- Nervous tissue.
Blood is considered a connective tissue because it has a matrix. The living cell types are red blood cells, also called erythrocytes, and white blood cells, also called leukocytes. Erythrocytes (red blood cells), the predominant cell type, are involved in the transport of oxygen and carbon dioxide.
- Cells and fibers of connective tissue.
- Connective tissue proper. Loose connective tissue. Dense connective tissue.
- Specialized connective tissues. Reticular connective tissue. Cartilage. Bone. Blood. Adipose tissue. Embryonic connective tissue.
: plant tissue that has completed its growth and differentiation and is usually incapable of meristematic activity.
Epithelial tissue forms the outer layer of the body and also lines many of the bodies cavities where it has a protective function. Connective tissue assists in support and protection of organs and limbs and depending on the location in the body it may join or separate organs or parts of the body.
The connective tissue cells are freely arranged in a matrix and are widely distributed in the body. Different types of connective tissues include areolar tissue, adipose tissue (fat), blood, bone, and cartilage.
Examples of connective tissues include tendons, ligaments, bones, blood, adipose and areolar tissues. Further, there are three types of connective tissues.
Immunization is a way of protecting against serious diseases. It is the process by which an individual's immune system becomes fortified against the pathogens or Immunization is a way of protecting our body against serious diseases.
Striated muscles fibres are long or elongated,unbranched,have many nuclei. Each muscle cell is enclosed in a thin but distinct plasma membrane called sarcolemma. These muscles are present in limbs,face,neck,tongue,pharynx,diaphragm. It help in smooth contraction and movement.
There are 8 types of epithelial tissues. Simple squamous, Stratified Squamous, Simple Cuboidal, Stratified Cuboidal, Simple Columnar, Stratified Columnar, Pseudostratified Columnar and Transitional epithelia or urothelium.
A vascular bundle is a part of the transport system in vascular plants. Both these tissues are present in a vascular bundle, which in addition will include supporting and protective tissues. The transport itself happens in vascular tissue, which exists in two forms: xylem and phloem.
Areolar connective tissue
→ The various causes of diseases are pathogens (virus, bacteria), lack of nutritious diet/balanced diet and lack of public health services.
Study Material and Notes of Ch 13 Why Do We Fall ill Class 9th Science.
| Infectious Agents | Diseases |
|---|
| Worms | Intestinal infections, elephantiasis |
There are 4 basic types of tissue: connective tissue, epithelial tissue, muscle tissue, and nervous tissue.
Nervous tissue is found in the brain, spinal cord, and nerves. It is responsible for coordinating and controlling many body activities. The cells in nervous tissue that generate and conduct impulses are called neurons or nerve cells. These cells have three principal parts: the dendrites, the cell body, and one axon.
The epidermis and its waxy cuticle provide a protective barrier against mechanical injury, water loss, and infection. Various modified epidermal cells regulate transpiration, increase water absorption, and secrete substances.
Lateral meristems are known as secondary meristems because they are responsible for secondary growth, or increase in stem girth and thickness. Meristems form anew from other cells in injured tissues and are responsible for wound healing.
Tissue, in physiology, a level of organization in multicellular organisms; it consists of a group of structurally and functionally similar cells and their intercellular material.
