Do Now How is vitamin D produced? Who has more melanin: people whose ancestors lived close to the north pole or people whose ancestors lived close to the equator? Why?

Cover up: Integumentary Diseases

Outline for the Unit Week One Week Two The purpose of skin, membranes and layers Diagram location of layers of skin and organs Explain how the epidermis grows, keratinizes and is lost Explain hair, nails, skin color and melanocytes Week Two Explain the importance of the hypodermis, inflammation and thermoregulation Explain diseases of integumentary system Explain treatment of diseases Diagnose and prescribe treatments for the diseases

To be on track to get an A… Leave this class knowing (or prepared to learn) the descriptions and causes of… Know these important dates Quiz on skin 11/9 (Friday!!!) Skin, Muscle and Bone Test 12/13 Acne Vitaligo Eczema Psoriasis Baldness Athlete’s Foot Albinism

Pathology Path- = disease -logy = study of

First… A note on professionalism Respect Patient-Doctor Confidentiality

Acne Cause Occurs when the openings of hair cells are blocked by dead epidermal cells.  The oil from the sebaceous glands gets trapped and a bacterium that lives on your skin starts to eat it-the product is something that causes irritation in our skin and leads to inflammation. Genetic component, diet, hormone changes, exposure to oils or some cosmetics Treatments  Acne treatments work by reducing oil production, speeding up skin cell turnover, fighting bacterial infection, reducing the inflammation or doing all four.

Acne

Acne

Acne

Acne

Baldness Description Loss of hair on the head Causes Genetic The condition is thought to be an autoimmune disorder which means that your own body’s immune system attacks and destroys something else in your body. In this case, your antibodies attack your hair follicles.

Baldness

Baldness

Vitiligo Description  A condition in which your skin loses melanin causing slowly enlarging white patches of irregular shapes to appear on your skin. Causes Vitiligo occurs when the cells that produce melanin die or no longer form melanin. It may be due to an immune system disorder.

Vitiligo

Vitiligo

Vilitigo

Psoriasis Description: A chronic (reoccurring) condition where the skin inflames and becomes covered in silvery scales Cause: The epidermis continues to replicate uncontrollably (possibly because of antibodies stimulating the growth-but we really don’t know how or why). Large genetic component

Psoriasis

Psoriasis

Eczema Description A reoccurring epidermal condition that causes dryness, flaking, redness, inflammation, and sometimes blistering and bleeding Cause Usually caused by an irritant you touch, an allergen you touch or consume, or hormone imbalances although there are many more causes. Either way, they cause an inflammation of the skin and irritation of the nerves.

Eczema

Eczema

Athlete’s foot Description: Scaling, flaking, and itching of the infected area-can blister and crack the skin May spread to the groin (Jock itch) Cause Caused by a fungal infection (living off the epidermal tissue)

Athlete’s foot

Athlete’s foot

Albinism Description Large patch of white skin, or the entire body is white, hair is white and irises of eyes are red This lack of melanin leads to no protection from the UV of the sun. They are easily sun burned. Cause Genetic disorder. Their bodies do not produce an enzyme needed in the production of melanin.

Albinism

Albinism

Albinism

Treatment Practice Key words/abbreviations Steps: Pt = patient y/o = year old CC = Chief Complaint Steps: Gather symptoms (observe) Match symptoms to known diseases (evidence) Draw conclusions (analysis)

Practice Diagnosis 16 y/o female presents with a CC of spots on her face. They are red and sometimes painful to touch. She cannot say when they started popping up, but does mention that she has been spending more and more time working and less time having fun with her friends. She is constantly checking her phone for updates about her boyfriend, who she is deciding whether or not to break up with.

Practice Diagnosis 16 y/o female presents with a CC of spots on her face. They are red and sometimes painful to touch. She cannot say when they started popping up, but does mention that she has been spending more and more time working and less time having fun with her friends. She is constantly checking her phone for updates about her boyfriend, who she is deciding whether or not to break up with.

You Try! Practice Diagnosis A 27 y/o male arrives at your office with a CC of what he refers to as “patches of skin that don’t match” the rest of his body. Upon further examination, you find lighter pigmented patched on his hands and feet. No other patches are present on his body. Pt states that the patches are not painful, itchy or irregular in any way except for their color.

Worksheet You will be using this worksheet today AND tomorrow Today you are diagnosing the conditions of your patients Tomorrow you are treating those conditions Hint: Make sure to leave space on your sheet for treatments tomorrow!