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Epithelial Tissue
Epithelial tissue is one of four major tissue types in the body. The body is covered with this tissue and it also lines body cavities and major organs.
Functions of epithelial tissue
Protection, absorption, filtration, excretion, secretion, and sensory reception.
Special characteristics of epithelium
Cellularity: Made almost entirely from cells. Specialized contacts: Cell junctions. Polarity: free upper (apical) surface and lower (basal) surface. Support by connective tissue. Avascular (without bl
Two types of epithelial tissue
Epithelium that covers or lines: epithelium covers the outside surfaces of the body and lines internal organs. Glandular epithelium: secretes hormones or other products
Connective Tissue
It supports and binds other tissues.
Types of connective tissue
Loose connective tissue; dense connective tissue; cartilage; bone (osseous tissue); and blood and lymph (vascular tissue).
Epithelial Membrane
A combination of epithelial and connective tissues working together to perform a specific function.
Four types of epithelial membranes
Serous Membrane: Line interior organ and cavities; Mucous Membranes: Line the body cavities that open to the outside of the body; Synovial Membranes: Lines the cavities at bone joints; Cutaneous Membr
Nervous Tissue
Two main functions: sensing stimuli and sending impulses to different parts of the body as a response. This tissue is what makes up the body's nervous system.
Neurons
The basic structural unit of the nervous system.
Glial Cells
Provide neurons of the nervous tissue with support, nutrition and protection against bacteria. They hold the neurons together.
Muscle Tissue
The main function of the muscle tissue is to relax and contrast so as to bring about movement and mechanical work in various parts of the body.
Three kinds of muscle tissues
Skeletal Muscle; Cardiac Muscle; and Smooth Muscle