Questions and Answers
What is the integumentary system derived from?
The Latin word 'tegere' meaning to cover.
Which of the following is NOT a part of the integumentary system?
What is keratin?
A cornified protein layer contained in hair, skin, and nails.
What is the function of sebaceous glands?
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What is the lunula?
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Which of the following terms refers to inflammation of connective tissue caused by infection?
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What is acne?
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The absence of hair is known as _____
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What does the suffix '-ectomy' refer to?
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Dermatoplasty refers to the viewing of the skin.
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What is the term for a collection of pus localized in one area?
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Match the following terms with their definitions:
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Study Notes
Integumentary System Overview
- Derived from Latin term "tegere," meaning to cover.
- Comprises skin, hair, nails, sweat glands, and oil glands.
Skin Structure
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Epidermis: Outer layer of skin.
- Contains keratin, a protein that forms a protective layer in skin, hair, and nails.
- Melanin: Responsible for skin color and pigmentation.
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Dermis: Inner layer of skin.
- Contains sweat glands and sebaceous glands.
Glands
- Sweat Glands: Tubular structures releasing sweat through skin pores.
- Sebaceous Glands: Produce sebum, an oily substance, into hair follicles.
Nail Anatomy
- Lunula: The white crescent area at the base of a nail.
Medical Terminology
- Cutane/o, Derm/o, Dermat/o: Refers to skin.
- Hidr/o: Refers to sweat.
- Kerat/o: Refers to hard or horny tissue.
- Onych/o, Ungu/o: Refers to nails.
- Seb/o: Refers to sebum (oil).
- Trich/o: Refers to hair.
Prefixes
- Epi-: On, upon, or over.
- Intra-: Within.
- Para-: Beside, beyond, or around.
- Per-: Through.
- Sub-: Under or below.
Suffixes
- -ectomy: Surgical removal.
- -ia: Indicates a diseased or abnormal state.
- -malacia: Softening of tissue.
- -opsy: View of or viewing.
- -orrhoea: Excessive discharge or flow.
- -plasty: Surgical repair.
Diseases and Disorders of the Integumentary System
- Abrasion: Skin scraped away due to injury.
- Abscess: Collection of pus localized in tissue.
- Acne: Inflammatory skin disorder affecting sebaceous glands and hair follicles.
- Actinic Keratosis: Precancerous skin condition due to sun exposure.
- Cellulitis: Inflammation of connective tissue resulting from infection.
- Contusions: Bruises or injuries without skin breaking.
- Eczema: Non-infectious inflammatory skin disorder causing redness and itching.
- Fissure: Crack-like sore in the skin.
- Furuncle: Painful skin node from a Staphylococcus infection in hair follicles.
- Kaposi’s Sarcoma: Cancer presenting as purple or brown spots, common in AIDS patients.
- Laceration: Torn or jagged wound.
- Lesion: Pathological change in tissue structure due to disease or injury.
- Pediculosis: Infestation of lice in skin or hair.
- Scleroderma: Disease causing chronic hardening of connective tissue.
Additional Terms
- Biopsy: Examination of tissue removed from a living body.
- Dermatoautoplasty: Surgical repair using the patient's own skin.
- Dermatoheteroplasty: Surgical repair using skin from another individual.
- Dermatoplasty: General skin surgical repair.
- Onychectomy: Removal of a nail.
- Rhytidectomy: Facelift surgery to remove wrinkles.
- Rhytidoplasty: Surgical procedure to repair wrinkles.
Conditions to Define
- Adipose: Relating to body fat.
- Albino: Lacking pigment in skin, hair, and eyes.
- Allergy: Overreaction of the immune system to substances.
- Alopecia: Hair loss condition.
- Cicatrix: Scar tissue resulting from healing.
- Cytomegalovirus: A virus belonging to the herpesvirus family.
- Debridement: Removal of dead, damaged, or infected tissue.
- Decubitus ulcer: Bed sore from prolonged pressure.
- Dermabrasion: Skin resurfacing technique to remove layers.
Skin Conditions
- Diaphoresis: Excessive sweating.
- Disseminate: Spread widely.
- Ecchymosis: Bruising.
- Oedema: Swelling due to fluid accumulation.
- Emollient: Substance that softens or soothes skin.
- Erythema: Redness of the skin.
- Induration: Hardening of tissue.
- Keloid: Raised scar from excessive scar tissue formation.
- Leukoplakia: White patches in the mouth or on mucous membranes.
- Macule: Flat discolored spot on the skin.
- Nevus: Mole or birthmark.
- Papule: Small raised bump on the skin.
- Petechia: Small red or purple spots due to bleeding.
- Purpura: Larger purple spots or patches of bleeding.
- Pustule: Small raised bump filled with pus.
- Ulcer: Open sore on skin or mucous membranes.
- Verruca: Wart caused by viral infection.
- Vesicle: Small fluid-filled blister.
- Wheal: Raised, itchy area on the skin.
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Description
This quiz covers the fundamentals of the integumentary system, including skin, hair, nails, and associated glands. Dive into the details of the epidermis, dermis, and the role of keratin and melanin in skin structure and pigmentation. Perfect for students studying medical terminology at Level 200.
