get ready to take notes reminder: integumentary system quiz thurs. / fri. wednesday, september 30,...
TRANSCRIPT
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• GET READY TO TAKE NOTES• REMINDER: INTEGUMENTARY
SYSTEM QUIZ THURS. / FRI.
Wednesday, September 30, 2015
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Skin & the Integumentary System
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Functions of Skin
1. Maintaining homeostasis/protection (mechanical, chemical, thermal, UV, bacteria)
2. Regulate body temperature 3. Retards water loss (keratin)4. Houses sensory receptors5. Synthesizes various chemicals (vitamin
D)6. Excretes waste
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Sebaceous glands
Oil glands all over the skinProduce sebum which is a lubricant that keeps skin/hair soft and moist, also kills bacteria
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Eccrine Glands Apocrine Glands
Small and numerous all over the body
Produce sweatRegulate body heat
Large and confined mainly to axillary and genital areas
Produce fatty acid & protein secretion that when bacteria use as food causes us to have body odor
Sudoriferous glands (sweat glands)
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Y O U J U S T N E E D T O W R I T E T H E N A M E D O W N A N D S O M E T H I N G S H O RT A B O U T I T- Y O U A R E
N O T C O P Y I N G T H E W H O L E S L I D E ! ! !
CAUTIONS O M E O F T H E S E P I C T U R E S A R E G R O SS A N D
S O M E O F T H E M W I L L M A K E Y O U I T C H
Common Skin Disorders (Infection & Allergies pg
123)
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Athlete’s Foot
Causes: mold-like fungi called dermatophytes that thrive in damp environments. It is contagious!!!
Symptoms: Itching, stinging, burning, blisters, dryness, cracking & peeling skin
Types: Ringworm, jock itch, nail fungus
Treatments: Ointments, powders, sprays, creams, pills
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Athlete’s Foot
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Boil/ Carbuncle
Causes: Bacteria or ingrown hairsSymptoms:
A painful, red bump that starts out about the size of a pea Red, swollen skin around the bump An increase in the size of the bump over a few days as it fills
with pus (can sometimes reach the size of a golf ball) Development of a yellow-white tip that eventually ruptures
and allows the pus to drain out. Fever Chills
Treatments: Incision and drainage. Antibiotics.
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Herpes/Cold sores
Cause : virusSymptoms: cluster of small fluid-filled
blisters that break, forming painful sores that crust and heal, itching, tingling, or burning sensation , painful urination
Types: HSV-1 & HSV-2, either can be mild or severe
Treatments: ointments, Antiviral drugs (valtrex)
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Herpes
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Contact dermatitis
Causes: exposure to chemicals that provoke allergic responses.
Symptoms: Itching, redness, swelling, progressing to blistering
Treatments: Various creams, ointments, pills
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Contact dermatitis
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Impetigo
Cause: bacterial skin infection, very contagious
Symptoms: red sores that can break open, ooze fluid, and develop a yellow-brown crust
Types: mild- severeTreatment: ointment, creams, antibiotics
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Impetigo
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Psoriasis
Cause: Unknown, possibly genetic or bad immune system
Symptoms: Bright red areas of raised patches (plaques) on the skin, often covered with loose, silvery scales. Plaques can occur anywhere, but commonly they occur on the knees, elbows, scalp, hands, feet, or lower back.
Tiny areas of bleeding when skin scales are picked or scraped off ,Mild scaling to thick, crusted plaques on the scalp. Itching, Nail disorders
Types: 6 types ranging from mild-severeTreatment: creams, ointments, pills
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Psoriasis
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Just for Educational Fun!!!!
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Acne
Possible Causes: Bacteria, Stress, Hormones, Steroids
Symptoms: Pimples, blackheads, pustules, whiteheads, cysts
Types: mild-severe, cost common in teenagers
Treatment: wide variety of soaps and antibiotics
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Acne
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Eczema
Cause: is unknown, thought to be linked to an overactive response by the body's immune system to unknown triggers, usually in family history
Symptoms: almost always itchy, areas usually appear very dry, thickened, or scaly. Commonly occurs on the face, knees, hands, or feet
Types: mild to severeTreatments: lotions and creams
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Eczema
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Keratosis pilaris
Cause: from the buildup of keratin — a hard protein that protects your skin from harmful substances and infection. Keratin forms a scaly plug that blocks the opening of the hair follicle. Usually many plugs form, causing patches of rough, bumpy skin.
Symptoms: Small, acne-like bumps, Painless, skin-colored bumps that can, at times, be red and inflamed, Dry, rough patches
Treatment: medicated creams & ointments
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Keratosis pilaris
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Pediculosis
Cause: parasitesSymptoms: a tickling feeling of
something moving in the hair; itching (caused by the an allergic reaction to the bites); sores on the head (caused by scratching);
Treatment: Over-the-counter medication, prescription medication, wash EVERYTHING!!!
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Pediculosis