1. Human integumentary system
Block 1
1/13/15

2. Introduction
Throughout this presentation, the audience will develop a better understanding of the human integumentary system as I explain the location of the integumentary system, functions of the system, parts of the system, and diseases that affect this system. I will also use pictures as a visual representation.

3. What is it?
The human integumentary system is the biggest organ of humans, and it is made up of the skin, hair, nails, glands, and nerve receptors. It is located on the outside of the body as skin and serves as a protective layer.

4. Functions
The human integumentary system’s main role is to defend your body from the external world. The functions of the integumentary system include:
Preserving body liquids
Guarding against diseases, infections, bacterium, and viruses
Removing waste products
Controlling body temperature
Protecting living tissues and organs in the body
Protecting the body from rapid temperature changes and UV radiation
Acting as a sensor for touch, pressure, pain, and cold and hot temperatures
Storing water, fat, glucose, and vitamin D
Preventing dehydration

5. Parts of the integumentary System
Skin
Hair
Nails
Glands
Nerve Receptors

6. Skin Epidermis: Uppermost layer of skin Mostly waterproof
Responsible for skin pigmentation
Protects the skin from UV radiation
Assists the immune system in
fighting off pathogens

7. Skin Dermis: Layer beneath the epidermis
Consists of the papillary and reticular layers
Allows for stretching
Works to prevent wrinkling and sagging
Fights off infections and unknown substances
Contains glands

8. Skin Hypodermis: Third layer of skin
Responsible for protecting the body
Cushions the bodies’ organs
Made of tissues that store extra energy as fat

9. Hair Covers most of the body Shields the body from UV radiation
Insulates the body by trapping in heat
Made up of the follicle, root, and shaft

10. Nails Located on the tips of fingers and toes
Protects the ends of the fingers and toes
Used as tools
Consists of the root, body and free edge

11. glands Sudoriferous Glands (Sweat Glands)
Located in the dermis of the skin
Eccrine sweat glands:
Located in most every part of the body
Let off water and sodium chloride to cool the body down
Apocrine Sweat Glands:
Found in pubic areas of the body
Emit oils near the hair shaft that produce a body odor

12. glands Sebaceous Glands Located in the dermis of the skin
Located everywhere on the body except the insides of the hands and the soles of the feet
Produce a discharge called sebum that is waterproof and allows the skin to stretch
Lubricate hair cuticles

13. glands Ceruminous Glands Located in the dermis of ear canals
Create a waxy discharge to shield the ear canal from dust particles and pathogens
Lubricate the eardrum

14. Nerve receptors
Responsible for sensing touch (pain, pressure, and temperature)
Communicate with the nervous system about the external environment

15. Diseases and conditions
Melanoma: Skin cancer that appears as a dark, varying, bleeding spot. It is the most dangerous type of skin cancer and can be fatal.
Basal Cell Carcinoma: Skin cancer where the skin becomes the color of a pearl. This is the most common type of skin cancer, and it destroys skin tissues and bones. It seldom spreads to other areas of the body. However, if it is not taken care of, it can cause problems.
Acne: A very common disorder of the hair and oil glands that causes pimples on the face, chest, and back.
Warts: Bumps on the skin (normally on the hands and feet) caused by viral infections.
Eczema (Dermatitis):This is dry, red, irritated, and scaly skin that can occur on any part of the body.
Vitiligo: A condition in which the skin does not produce melanin, and spots of white skin appear on the body.
Psoriasis: Inflamed, red, irritated patches that appear on the knees and elbows.

16. Conclusion
This project greatly expanded my knowledge on the human integumentary system. I learned about the location of the integumentary system, the functions of the system, the parts of the system, and the diseases that affect the system. The information I have collected will be beneficial in future classes that focus on the human body. It will also help me better understand how I am made and the importance of keeping my body and its systems healthy.

17. Works Cited
Pictures:
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