Essential Questions: What are the functions of the integumentary system? What are some disorders of the integumentary system? How are integumentary system disorders treated? How do you relate the integumentary system to the body’s communication systems? 3.06: Understand the functions and disorders of the integumentary system2

Functions of the integumentary system What are the functions of the skin? What structures are involved in these functions? 3.06: Understand the functions and disorders of the integumentary system

Functions of the integumentary system Epidermis What is the function of the epidermis? What do melanocytes do? What is a major function of intact skin? The epidermis is composed of dead and living cells. What in their relevance to health? 3.06: Understand the functions and disorders of the integumentary system4

Functions of the integumentary system Epidermis Why are some people dark and others fair? Can that be changed? 3.06: Understand the functions and disorders of the integumentary system 5

Functions of the integumentary system Dermis How is the dermis different from the epidermis in its function? Why is this important to your health? 3.06: Understand the functions and disorders of the integumentary system6

Functions of the integumentary system Subcutaneous layer Hypodermal layer Hypo- dermal What are the benefits of the subcutaneous layer of skin? 3.06: Understand the functions and disorders of the integumentary system7

Functions of the integumentary system Hair What is the function of hair? What factors influence hair type and color? What happens to your hair when you are cold? Why? 3.06: Understand the functions and disorders of the integumentary system8

Functions of the integumentary system Nails Not just a pretty color! What does the condition of a person’s nails tell about their general health? 3.06: Understand the functions and disorders of the integumentary system9

Functions of the integumentary system Glands Sudoriferous glands Why does sweat smell bad? Sebaceous glands What role do sebaceous glands have in relation to pimples? 3.06: Understand the functions and disorders of the integumentary system10 Pimple

Functions of the integumentary system What are the functions of the skin? What structures are involved in these functions? 3.06: Understand the functions and disorders of the integumentary system review

Functions of the integumentary system The skin has remarkable ability to heal itself. How does this happen? 3.06: Understand the functions and disorders of the integumentary system12

Disorders of the integumentary system Acne vulgaris: What is acne vulgaris? How is it treated? Can it be prevented ? 3.06: Understand the functions and disorders of the integumentary system13

Acne Acne Vulgaris - sebaceous glands secrete excessive oils which becomes keratinized and plugs opening preventing oils from escaping. Leukocytes fill area and create pus. Common and chronic disease. 3.06: Understand the functions and disorders of the integumentary system14

Disorders of the integumentary system Athlete’s foot What causes athlete’s foot? Does everyone have the same symptoms? How is it treated? 3.06: Understand the functions and disorders of the integumentary system15

Athletes Foot- Contagious fungal infection, blisters, cracking, scaling between toes or fingers; Rx: clean, dry, antifungal agents 3.06: Understand the functions and disorders of the integumentary system16

Disorders of the integumentary system Burns: First-degree Second-degree Third-degree 3.06: Understand the functions and disorders of the integumentary system17

Disorders of the integumentary system Burns: First-degree 3.06: Understand the functions and disorders of the integumentary system18 superficial

Disorders of the integumentary system Burns: Second degree- blistering 3.06: Understand the functions and disorders of the integumentary system19 Partial thickness

Disorders of the integumentary system Burns: Third-degree 3.06: Understand the functions and disorders of the integumentary system20 Full thickness

Disorders of the integumentary system Burns: Compare the different degrees of burns. 3.06: Understand the functions and disorders of the integumentary system21

Disorders of the integumentary system Burns: Rule of Nines Used to quickly assess percentage of body surface burned. Can be used to determine extent of treatment needed. 3.06: Understand the functions and disorders of the integumentary system22

Disorders of the integumentary system Dermatitis/Eczema dermat- -itis Skin- inflammation What is dermatitis? usually caused by an allergen- dry, itchy skin How are dermatitis and eczema similar? both dry itchy skin, but eczema can be chronic, whereas dermatitis usually goes away after irritant removed What is the treatment? Wash area, moisturizers, steroids 3.06: Understand the functions and disorders of the integumentary system23

Disorders of the integumentary system Herpes Herpes simplex virus Two types of HSV: HSV type 1- cold sores- caused by virus What are the symptoms? painful blisters on lips, nose, no cure, treat symptoms Type 2- genital How is it spread? Sexual contact, can cause sores on genital or rectal area, thighs What is the prognosis? Can spread even without symptoms, no cure but medication can help lessen symptoms, decrease outbreaks 3.06: Understand the functions and disorders of the integumentary system24

Disorders of the integumentary system Impetigo What two bacteria cause impetigo? Staph and strep What are some risk factors in contracting impetigo? Insect bites, scrapes, scratches on skin bacteria can enter, can also be spread by contact with sores or nasal drainage How is it treated? antibiotics 3.06: Understand the functions and disorders of the integumentary system25

Disorders of the integumentary system Psoriasis Describe this picture. Thick red skin with silvery patches Who is likely to have psoriasis? Psoriasis usually occurs in adults. It sometimes runs in families What is the treatment? Treatments include creams, medications and light therapy. 3.06: Understand the functions and disorders of the integumentary system26

Disorders of the integumentary system Ringworm How is it spread? You can get them by touching an infected person, from damp surfaces such as shower floors, or even from a pet. What causes ringworm? fungus What is the medical term? Tinea How is it treated? Over-the-counter creams and powders will get rid of many tinea infections, particularly athlete's foot and jock itch. Other cases require prescription medicine. 3.06: Understand the functions and disorders of the integumentary system27 Two examples of ringworm How would this be diagnosed?

Disorders of the integumentary system Scabies What is the cause of scabies? Scabies is an itchy skin condition caused by the microscopic mite Is it contagious? spreads quickly in crowded conditions where there is frequent skin-to-skin contact between people. Hospitals, child-care centers and nursing homes are examples. Scabies can easily infect sex partners and other household members. Sharing clothes, towels, and bedding can also spread scabies. You cannot get scabies from a pet. Pets get a different mite infection called mange. How is it treated? Several lotions are available to treat scabies How is it prevented ? The infected person's clothes, bedding and towels should be washed in hot water and dried in a hot dryer. 3.06: Understand the functions and disorders of the integumentary system28

Disorders of the integumentary system Shingles What is the cause of shingles? varicella-zoster virus - the same virus that causes chicken pox Is it contagious? Unlike chickenpox, you can't catch shingles from someone who has it Who is most at risk? As you get older, the virus may reappear as shingles How is it prevented? There is no cure for shingles. Early treatment with medicines that fight the virus may help. These medicines may also help prevent lingering pain. A vaccine may prevent shingles or lessen its effects. The vaccine is for people 60 or over. 3.06: Understand the functions and disorders of the integumentary system29

Disorders of the integumentary system Skin cancer What are the risk factors for developing skin cancer? How can it be prevented? Three types: Basal cell carcinoma Squamous cell carcinoma Malignant melanoma 3.06: Understand the functions and disorders of the integumentary system30

Disorders of the integumentary system Skin cancer Basal cell carcinoma. Basal Cell Carcinoma- usually on face, 99% cure rate, least malignant Most often caused by sun exposure Treatment is determined by where and size 3.06: Understand the functions and disorders of the integumentary system31

Disorders of the integumentary system Skin Cancer Squamous cell carcinoma. Squamous Cell Carcinoma- usually on scalp & lip- /skin-cancer- information/squamous- cell-carcinoma /skin-cancer- information/squamous- cell-carcinoma Woman battling skin cancer shares graphic photo to motivate people to stop tanning 3.06: Understand the functions and disorders of the integumentary system32

Disorders of the integumentary system Skin cancer Malignant melanoma. noticeable through black, irregular patches or changes in mole or wart. Metastasizes quickly. the most serious type of skin cancer, develops in the cells (melanocytes) that produce melanin the pigment that gives your skin its color. 3.06: Understand the functions and disorders of the integumentary system33 Mohs Surgery

Disorders of the integumentary system Skin lesions: Discuss the characteristics of the different skin lesions. 3.06: Understand the functions and disorders of the integumentary system34

Disorders of the integumentary system Skin lesions: Compare these types of skin lesions. Macule Papule Pustule 3.06: Understand the functions and disorders of the integumentary system35 Vesicle Ulcer

Disorders of the integumentary system Skin lesion: Decubitus ulcer What is an ulcer? What are decubitus ulcers? How can they be prevented? How are they treated? 3.06: Understand the functions and disorders of the integumentary system36

Disorders of the integumentary system warts What causes warts? Warts are growths on your skin caused by an infection with human papilloma virus, or HPV. Are they contagious? Yes! These wart growths are indeed contagious, but not so severely as to affect several parts of the body all at the same time. Most often than not, they are localized within one area such as the neck, hands, or feet. Can they be prevented? wash hands, do not go barefoot in public areas, don’t share towels, take care of skin 3.06: Understand the functions and disorders of the integumentary system37 There are many different types!

Tree Man 3.06: Understand the functions and disorders of the integumentary system38

3.06: Understand the functions and disorders of the integumentary system39

Essential Questions: What are the functions of the integumentary system? What are some disorders of the integumentary system? How are integumentary system disorders treated? How do you relate the integumentary system to the body’s communication systems? 3.06: Understand the functions and disorders of the integumentary system40