chapter 16 Flashcards
What is the largest organ of the body?
Skin
Weighs 8 to 10 lbs and covers 22 sq. ft. in the average adult.
What are the three main layers of the skin?
- Epidermis
- Dermis
- Subcutaneous tissue
What is the function of sebaceous glands?
Produce sebum to lubricate the skin and hair
What is the role of sweat glands?
Produce sweat to cool the body
What is the outermost layer of the skin called?
Epidermis
Define ‘adipocyte’.
Fat cell
What is the deepest region of the epidermis known as?
Basal layer
What is the primary structural protein found in the skin?
Collagen
What is the term for the band of epidermis at the base and sides of the nail plate?
Cuticle
What are the two types of sweat glands?
- Eccrine sweat gland
- Apocrine sweat gland
What does the term ‘melanin’ refer to?
Skin pigment formed by melanocytes in the epidermis
What is a ‘papule’?
A type of cutaneous lesion
True or False: Alopecia refers to the presence of hair where it normally grows.
False
What is ‘eczema’ also known as?
Atopic dermatitis
What skin condition is characterized by red, round wheals?
Urticaria
Define ‘psoriasis’.
Chronic recurrent dermatosis with silver gray scales that itch
What is ‘scabies’?
Parasitic and infectious pruritus caused by tiny mites
What does the abbreviation ‘SLE’ stand for?
Systemic lupus erythematosus
What is ‘cryosurgery’?
Destroying tissue with subzero temperatures using liquid nitrogen
Fill in the blank: The _______ layer is the innermost layer of the skin, containing fat tissue.
Subcutaneous
Which combining form refers to ‘skin’?
Derm/o
What is ‘Kaposi sarcoma’?
Malignant, vascular, neoplastic growth characterized by cutaneous nodules
What are the characteristics associated with melanoma represented by the acronym ABCDE?
- Asymmetry
- Border
- Color
- Diameter
- Evolution (or change)
What is the term for a small pinpoint hemorrhage?
Petechia
