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Published byHelen Young Modified over 9 years ago
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Integumentary System Diaz, Deliz Harrington, Mikaela Maya, Danna
Soarez, Jenny Urra, John-Paul
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Parts of the System Made up of skin, hair, and nails. Skin is the major organ of the system. It is made up of 3 layers: Epidermis- Outermost layer; 5 sub-layers, no blood vessels or nerves. Dermis- Elastic connective tissue, contains blood vessels, nerves, involuntary muscle, sweat glands, & hair follicles. Subcutaneous fascia (hypodermis)- Innermost layer; made up of elastic & fibrous connective tissue, fatty tissue, and it connects to underlying muscles.
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Parts of the Nail
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Parts of the Hair Follicle
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Functions Protection-
Barrier to the suns ultraviolet rays, pathogens & germs. Holds in moisture. Sensory Perception- The nerves help body to respond to pain, pressure, temperature, and touch sensations. Body temperature regulation- Blood vessels help body retain or lose heat. Storage- Tissues are temporary storage for fats, glucose, water, vitamins, and salts.
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Functions continued… Absorption-
Substances can be absorbed through the skin, called transdermal medication. Excretion- Skin eliminates salt, waste, & excess water Production- Skin helps in the production of Vitamin D using UV rays from the sun.
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Pigmentation Skin color is determined by pigments in the epidermis.
Melanin, a pigment, is produced in the epidermis by melanocytes. Every person has the same number of melanocytes, racial groups is what determines the amount of melanin produced.
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Complications of Pigmentation
A person with an absence of pigments is an albino. Erythema is the reddish color of the skin caused by burns or congestion of blood in the vessels. Jaundice is a yellow discoloration of the skin. Indicates bile in the blood.
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Skin Eruptions Macules- Papules- Vesicles- Pustules- Ulcer- flat spots
firm, raised areas Vesicles- blisters Pustules- pus-filled sacs Ulcer- deep loss of skin 2 1 3 4 5
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Melanoma Malignant tumor caused by the changes of melanocytes.
Most likely to have melanoma if the person: has fair skin lives in a sunny climate or high altitude uses tanning devices Symptoms- Asymmetry Borders Color Diameter Evolution
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Treatment Surgery The cancer and 1 cm of surrounding skin is removed
Chemotherapy Medicines kill cancer cells Immunotherapy Medications assist immune system Radiation treatments Relieves pain or discomfort
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Dermatitis Inflammation of the skin
Results from direct contact with allergens or irritants Common in babies and children; people who live in dry climates Symptoms- Itching Pain Stinging Sores Burning Swelling Blisters Thick or scaly skin
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Treatment Skin creams or ointments that control swelling
Antibiotics to treat infections Antihistamines Medications that suppress immune system
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Psoriasis Skin redness and irritation Not contagious
Can trigger if exposed to: Bacteria or viral infections Dry air or skin Injury Stress Too much or little sunlight Too much alcohol Weak immune system Symptoms- Irritated, red, flaky patches Itchy Raised and thick skin
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Treatment Lotions, ointments, creams, and shampoos
Pills or injections that affect the immune system Phototherapy- skin is exposed to UV light.
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Careers Allergist- Corrects or improves the appearance of physical features. Diagnoses and treats conditions/diseases of the skin, hair, and nails. Diagnoses and treats allergies. 4 years of premedical college 4 years of Medical school 4 years of medical school 3 years of residency training Internship 1 or 2 years fellowship program 3 years residency 2 years of fellowship program $243,000-$319,000 $282,000-$460,000 $192,000-$247,000 Plastic Surgeon- Dermatologist-
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Medical Abbreviations
BMK SG birthmark skin graft Bx Subq biopsy subcutaneous HD UV Hansen disease (leprosy) ultraviolet ID intradermal
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Medical Terminology cutane/o breathe through skin pil/o derm/o hair
prurit/o erythem/o itching flushed, redness pseudo- graph/o false writing psor/o onych/o nail ungu/o papul/o papule, pimple perspir/o
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