This is an example of an epithelial tissue called pseudo stratified columnar. As you can see it appears as stratified, which is multiple layers, but is really only a single layer of columnar. The function of this tissue is to line air passages, such as the trachea, and reproductive tubes.
This tissue type is best for its location and function in the body because the pseudo stratified columnar tissue it is ciliated. Ciliated tissue means it contains cilia which is short hairlike process that keeps movement throughout the area and keeps out harmful items from entering by a barrier. This tissue type is needed in the air passage ways to keep fluid and mucus flowing and not cause build up. It is also needed in the nasal cavity so harmful agents floating in the air are not sucked up into the nose and stopped by the brushlike barrier.
This is an example of connective tissue called adipose. Adipose insulates and stores fat. Adipose is an connective tissue because it has the function to protect and cushion organs and other tissue from harm and bear weight, stretch, and abuse in daily activities from harming internal functions and body parts. It also is a storehouse for energy that the body can access.
This is an example of muscular tissue called cardiac muscle. The cardiac muscle can be found in heart walls and is an involuntary muscle and works on its own. This cardiac muscle is a necessity in the body for the reason that is synchronizes the contractions of the heart beat.
This is an example of a nervous tissue. The nervous tissue is located in the brain, along the spinal cord, and in nerves. Its functions is to generate and transmit nerve impulses to and from body organs by neurons as you can see in the above picture. Neuroglial cells, also seen above, support, insulate, and protects neurons so the messages transmitting are not harmed.