Integumentary System Overview

http://www.youtube.com/watch?v=jNr5PGASs7k

I tried to upload the video itself but I couldn't find it when I tried.

Summary:
          This video is a quick overview of the Integumentary system. The integumentary system is made of skin, fingernails, and hair. This video focuses on the skin. The skin helps excrete water, salts, and urea, helps regulate temperature, produces Vitamin D (which is important in calcium absorption, which is in turn important in nerve and muscle function), and is an important sensory organ. Skin is made up of epithelial, nerve, muscle, and connective tissue. It can be broken down into several layers. The epidermis is the thin, outer layer of mostly dead cells. It contains keratin, which helps waterproof the skin and protect the cells underneath. The epidermis also produces a pigment called melanin, which protects the cells beneath it from the sun's ultraviolet rays. The dermis is the thick middle layer. It contains sweat glands, hair follicles, nerves, and blood vessels. The innermost layer of the skin is the hypodermis, which is also called the subcutaneous layer. The hypodermis consists of connective tissue that stores fat and insulates the body from the cold.

Relevance to Class:
          In class, we talked about the structure and function of the integumentary system. We learned about the different parts of the system, and mainly focused on the skin. We learned the functions of the skin, the different tissues, and the different layers. Altogether, everything we learned in class was talked about in this video.

Video Information:
Link: http://www.youtube.com/watch?v=jNr5PGASs7k
Author: ramana reddy
Date: September 26, 2012