Tissue slides refers to the treatment of biological tissue into thin slices, which are applied to glass slides for microscopic observation. This is an important tool and method for the development of histology. It is often developed with the development of microscope technology and the improvement of glass slide making technology. Tissue slides are widely used in biology, medicine (pathology, infectious diseases, etc.), agronomy (Plant Pathology), etc.
People have four basic organizations:
Epithelial tissue, connective tissue, muscle tissue, nerve tissue.
Epithelial tissue:
Distribution: body surface, inner surface of digestive tract and respiratory tract, outer surface of various organs.
Function: protection, secretion.
Features: the cells are closely arranged with less intercellular stroma.
Muscle tissue:
Distribution: bone, heart, digestive tract.
Function: it has systolic and diastolic functions.
Features: mainly composed of muscle cells. There are three main types: myocardium, skeletal muscle and smooth muscle.
Connective tissue:
Distribution: bone tissue and blood belong to connective tissue.
Function: connective tissue has the functions of support, connection, protection and nutrition.
Features: developed intercellular matrix.
Nerve tissue:
Distribution: in the brain and spinal cord.
Function: can accept stimulation and produce and transmit excitement.
Features: mainly composed of nerve cells.
