Animal tissues are classified in six groups examined:
1. Epithelial tissue
Covering the surface of the body and the body in a continuous layer and cover the gaps that limit the cells occurs. Protection, absorption, secretion, and feeling like they see assignments. Epithelial layer of the body, the lower mechanical damages cells, harmful chemicals, bacteria and protect dry. The inside of the digestive tract into the body producing epithelial function in the absorption of nutrients and water acts. Other products are now a wide variety of epithelia secrete substances or other body secretions in a place that is used.
According to the form and function of epithelial tissues are divided into six sub-classes:
a. squamous : squamous cells lined up side by side occurs. Surface of the skin, mouth, esophagus, vagina is the inner cover.
b.
see. epithelial tissue
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Cubic epithelium : the cube-shaped cells made. Cover, such as kidney tubules.
c.
see. Epithelial tissue
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Columnar epithelium : Pillow or column-like cells occurs. Columnar epithelium surrounded by the stomach and intestine.
d. Sill epithelium : columnar cells, the so-called free surfaces of the delete thumb may be small extensions. They vibrate rhythmically in one direction and carry items. In the ciliated epithelium is surrounded by many of the respiratory system.
e. The sensory epithelium : cells specialized for Etkimeleri occurs. For instance epithelial cells surrounding the inner wall of the nose can be given.
f. Fabric epithelium: Milk, özelleşmişlerdir to secrete substances such as wax or sweat.
2. Connective tissue: bone, cartilage, tendons, fibrous connective tissue containing connective tissue holding together the body's other cells serve as supports. These tissues, cells typically secrete large amounts of inanimate matter, it is called a matrix. Each connective tissue from the nature and functioning of these cells largely determined by the matrix. Fibrous connective tissue found throughout the body and skin safe ignites, the amount glands and many other parts of the structures of their own bonds. Tendons are specialized in the type of fibrous connective tissue. Cable that connects your muscles to the bone, or similar to each other cords.
Carry a protein called collagen fibers of connective tissue. This fiber is treated with hot water soluble collagen, gelatin protein, which are transformed.
Cartilage or bone, occurs in vertebrates support frames. Cartilage is the support of almost all vertebrates embiriyonik iskelettir circuits. Between the support structure of the human body, cartilage, ear nose and the tip bucket and felt.
Live bone cells die, for the life of a person secrete bony matrix. Bony matrix of calcium salts in bone engendering a very hard situation, to break quickly prevents collagen. Many bones in the center of a large cavity, has a bone marrow cavity. Here, the majority of bone marrow fat-containing yellow, or red and white blood cells, the tissue is located in the red bone marrow. Havers channels extending channels in the bone matrix is called. Among them, bone cells, blood vessels and nerves are to control and to help them. Bone cells to each other and havers channels, small channels within the matrix of the raw materials through the oxygen and takes waste out of the shoot. The bones, bony matter who may also have other cells.
3. Muscle tissue
Most of the animal movement, a long, cylindrical or spindle-shaped cells is achieved by contraction of the muscle cells. Each of these, many small, elongated features parallel to the grain. Muscle cells, mechanical work, alone strut, that is shorter and can thicken, can not push. Are three different types of muscle in the human body: skeletal, smooth and cardiac muscles. The walls of the heart muscle of the heart, smooth muscle walls of the digestive tract and is located in certain internal organs. Bones of the skeletal muscle adjacent to the large muscle masses of the body will bring about. Skeletal muscle, sometimes called voluntary muscle because it can be controlled optionally. However, cardiac muscle and smooth muscle işletilemezler optional.
4. Blood tissue
Blood red and white blood cells and blood, non-cellular portion of the liquid gets into. This liquid "plasma" is called. Sometimes it is classified in this tissue in connective tissue cells are derived from similar.
5. Nerve tissue
Made of cells called neurons. These electrochemical nerve impulslarını özelleşmişlerdir to convey. Each cell nucleus from a cell containing an enlarged cell body and the hair is similar to the one or more very thin nerve fibers. Nerve fibers cytoplasm (cell plasma) made from the plasma membrane is covered. The membrane thickness of 30-40 microns, 1-2 millimeters in length can vary up to 1 meter lengths. In humans, spinal cord, arm or leg can uzananlar 1 m or more long.
There are two types of nerve fibers. These axon and dendrites. These are normally transmits nerve impulses are distinguished from the basis of direction. Impulslarını nerve axons away from the cell body, dendrites towards the cell body transmit. The other with the intersection of dendritic synapse location in a neuron called the axon. Serves as a valve to prevent back flow of impulse synapse.
6. Reproductive tissue
Egg cells in females and males to produce sperm cells in the tissue is altered. Egg cells are round or oval and inert majority. Egg cells, sperm cells are smaller. That it has lost much of Stoplazmalarının developed a tail action is provided