Tissue Types

Anatomy and Physiology- Henry Cox

Epithelial Tissue

In this image we are able to see how the form of the skin helps it perform one of its primary functions. One of the most important functions of the skin is protection from outside contaminants. The close-knit surface of the skin helps to form a protective barrier against the outside.

Picture Credit: http://www.pennmedicine.org/encyclopedia/em_PrintImage.aspx?gcid=8912&ptid=2
This picture helps to illustrate the way that glands are designed to do their job. Exocrine glands are located so that they are able to send their hormones to the outside of the body, via ducts. Endocrine glands send their products directly into their bloodstream, which allows their signal to be sent around the body.

Picture Credit: http://www.tutorvista.com/content/biology/biology-ii/control-and-coordination/endocrine-system.php

Muscle Tissue

Cardiac muscle is designed with a very specific job in mind, to facilitate the movement of blood around the body. Not only is the muscle designed for this purpose, the organ that it makes up, the heart, is designed specifically for the pumping of blood around the body.

Picture Credit: https://www.pinterest.com/tajohnston/school/

This picture helps to illustrate the form and function of skeletal muscle tissue. By contracting and relaxing, muscles perform our voluntary movements. These muscles are designed and placed on the bones in such a way that the movement of the muscles incites the movement of our body.

Picture Credit: http://www.hubres.info/skeletal-muscles-diagram-2/tendon-epimysium-microscopic-anatomy-of-skeletal-muscle/

Connective Tissue

Ligaments are connective tissues that connect bone to bone and help to form joints. This picture shows the ligaments of the knee and clearly demonstrate the connection from bone to bone. Also, ligaments are designed to limit or prevent movements altogether, which once again is shown clearly in this picture. The ligaments on the side prevents excess movement, which could potentially cause injury.

Picture Credit: http://sportskneetherapy.com/knee-ligaments/

Research Credit: http://study.com/academy/lesson/what-are-ligaments-definition-types-quiz.html

These ligaments in the elbow perform a very similar function to the ligaments in the knee. They connect the bones in the elbow, forming a joint, and they prevent the excess movement of the joint in potentially damaging directions.

Picture Credit: http://www.newhealthadvisor.com/Ligaments-of-the-Elbow.html

Nervous Tissue

The brain is the source of most of the signals moving around our body. The brain controls all the functions of the body and this is made possible by its design and the rest of the nervous system.

Picture Credit: https://en.wikipedia.org/wiki/Human_brain

The nervous system is powered by the brain and allows the extremities of our body to communicate with the brain, which allows us to feel and send signals to every part of the body.

Picture Credit: https://en.wikipedia.org/wiki/Peripheral_nervous_system

Defense of My Opinion on Tissue Effectiveness

In my opinion, the most obvious choice to say that the tissue is the best for its location and function is epithelial tissue. The clearest example of this is skin. Skin forms a layer that allows sweat to come out, allowing us to cool down and regulate our body temperature, while it also does not allow water to enter. Also, as mentioned above, one of skin's main function is protecting the body from outside contaminants. Without skin, outside pollutants would be able to enter almost directly into the body. Another function of the skin, that is provided by the location and design of skin within the body, is touch. So, my argument is that epithelial tissue is the best fit for its location and function in the body, based on the arguments presented here for the essential design and function of skin, a type of epithelial tissue.