A tissue is an ensemble of similar cells from the same origin that together carry out a specific function.
The four types of tissues are muscular, nervous, epithelial, and connective.
Muscular- movement, maintenance of posture, joint stabilization, and heat generation.
Nervous- reacts to stimuli and conducts impulses
Epithelial- secretion, selective absorption, protection, transcellular transport and detection of sensation
Connective- supports and binds other tissues
Muscular- skeletal, smooth, and cardiac
Nervous- neurons and neurogila
Epithelial- squamous epithelium, cuboidal epithelium, columnar epithelium, and transitional epithelium
Connective- connective tissue proper, special connective tissue, and supportive connective tissue
Specializations of Epithelia
Columnar- found at the base of a cell
Transitional- found in the urinary bladder, ureters, urethra, and prostate
Cuboidal- found in ovaries, nephrons, renal tubules, parts of the eye and thyroid
Squamos - found where rapid diffusion or filtration take place
Where is it found?
Connective- found in cartilage and bone
Muscular- found in the walls of the orans
Epithelial- found on surfaces of external and internal body
Nervous- found in nerve cells, which are all over the body