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Hair, Nails, Infections. Do Now. 3 in 3 3 things from last class in 3 minutes Homework Review. Homework. Answer questions from the text book Pages and number to be determined. Where does hair come from?. Produced by a hair follicle Daughter cells are created and pushed away Die - PowerPoint PPT Presentation
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Hair, Nails, Infections
Do Now
3 in 3 3 things from last class in 3 minutes
Homework Review
Homework
Answer questions from the text book Pages and number to be determined
Where does hair come from?
Produced by a hair follicle
Daughter cells are created and pushed away Die
Due to death, almost entirely protein
Function
Minor protective functions Guard against bumps
Keeps sweat out of eyes
Shields eyes
Keeps foreign particles out of respiratory tract
Nail
Modification of the epidermis
Comparable to a hoof or claw of other animals
Transparent/colorless Pink color is from large blood supply
Blue color signifies lack of blood supply
Infections
Athlete’s foot Itchy, red, peeling between toes
Fungus
Infections
Boils Inflammation of the hair follicle
Bacterial infection
Form of staph infection
Infections
Cold Sore (fever blisters) Itch and sting
Herpes Simplex infection
Remains dormant until activated by emotional upset, fever or UV radiation
Infections
Contact Dermatitis Itching, redness and swelling of skin
Caused by an exposure to chemicals
Infections
Impetigo Pink, water filled lesions
Develop to yellow crust
Caused by highly contagious staph infection
Infections
Psoriasis Chronic
Overproduction of skin cells Red lesions
Cover with dry, silvery scales
Believed to be caused by body’s own immune system attacking a person’s tissues
Triggered by trauma, stress or infection
Infections
Methicillin-Resistant Staphylococcus Aureus (MRSA)
Resistant to most antibiotics
Open wounds or sores that become infected
Bill Nye!
http://www.youtube.com/watch?v=hUcyEhukn1M
Homework
Answer questions from the book Pages and numbers to be determined
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