TISSUES

Tissues- is a collection of similar cells acting together to form a function.

tissue has 4 types according to their function

1. epithelial
2. connective
3. muscle
4. nervous

Epithelial tissues cover organ surfaces such as the surface of the skin.
It is also packed together.
We can classify Epithelial tissue through their shape and arrangement.
It has 4 shapes namely Squamous, Cuboidal, Columnar and Transitional

Squamous- is flat and scalelike

Cuboidal- is a tissue w/c is cube-shaped. Their width is approximately equal to their height.




Columnar- are tissue w/c are columnlike



Transitional - tissues w/c are variably shaped

Epithelial tissues are arranged into two kinds ; Simple and Stratified
In simple they are arranged in single layer while in stratified they are arranges in several layers.

Connective tissue- is the most common among the tissues. They are found throughout the body. They provide structure and support.

Connective tissues are divided into three;
Areolar tissue-w/c holds organs together
Adipose tissue-also known as fat
Dense connective tissue-they are densely packed and have cordlike structure.

Muscle tissue- are tissue that has the ability to shorten/contract.

it has 3 types

Skeletal muscle-tissues that causes movement by contracting and relaxing.
Cardiac Muscle- are tissues w/c are mostly found on the heart. It is involuntary which means it can't be controlled.
Smooth Muscle- are tissues which are found on the hollow tissues.

the last type of tissue is known as Nervous tissue. Nervous tissues acts as a rapid messenger service for the body.