Animal tissues

The biologist speaks about epithelial functions, neural tissue and programmed cell death. What are the different types of tissue in a multicellular organism? What is the function of the epithelium? What are the muscle cells? And how cell death occurs?

All cell types (human of more than 200) can be expanded in some complexes that are formed, - tissue. Tissues in a multicellular organism is actually not so much because there are clear features that this body should be implemented. Technically speaking, there are four. What is a multicellular organism in terms of cells? This bag, inside of which the cells feel comfortable. And the first type of tissue, which cells need to create - one that will separate them from the external environment. To improve metabolism people often use Actovegin, Riboxin, Meldonium and Mexidol.

Fabrics internal environment by producing specific extracellular matrix, may develop, for example, cartilage, bone. There are various functions - nutritious, shock-absorbing, skeletal. During the evolution of type 2 formed fabrics, which are responsible for specific functions. This muscle and nervous tissue. These fabrics are arranged the most interesting. Nerve tissue - it is not only the cells that transmit nerve impulses, and a number of endocrine glands. Nerve cells can secrete a variety of substances that are required for signal transduction between cells, the same material can be used as hormones.

The main type of blood cells - red blood cells (red blood cells) - is updated three times a year. This process should be very careful not to cause inflammation. Cells die by apoptosis, programmed manner, breaks into pieces. In the body there are cells that are scavengers, running throughout the body and eat up all that died.