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

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