Vocab
A group of tissues specialized for a specific function.
What is an organ?
The epidermis lacks blood vessels.
True.
Skin color is due largely to _____.
What is melanin?
List the three parts of the skin.
What are the epidermis, dermis, and subcutaneous layers?
A ____ _____ manipulates soft tissue to relieve pain and reduce stress.
Process by which cells form fibrils and harden.
What is keratinization?
There is a clear boundary between the dermis and epidermis.
False; the collagen and elastic fibers in these layers are continuous with each other.
The epidermis is composed entirely of _______.
What is stratified squamous epithelium?
List three parts of the nail.
The skin excretes small amounts of _____.
The deepest layer of epidermal cells.
What is stratum basale?
The apocrine sweat glands are the most commonly found in the body.
False; the merocrine sweat glands are the most commonly found.
Sweat glands are ______ glands that are spread throughout the skin.
What is exocrine?
List three types of sweat glands.
Possible answers: merocrine, apocrine, cerumuinous, mammary
The sebaceous glands are usually associated with ____ _____.
A reddish-yellow pigment.
What is pheomelanin?
Skin cancer arises in nonpigmented epithelial cells in the deep layer of the epidermis.
True.
A yellowish tone can indicate ______, which is a consequence of _____ malfunction.
What is jaundice and liver?
List the four layers of the epidermis.
What are the stratum basale, stratum spinosum, stratum granulosum, and stratum corneum?
Dark hair has more of the brownish-black pigment, _____.
What is eumelanin?
A filament-associated protein that binds to keratin fibers in epithelial cells; fill the scaly cells that make up the epidermis.
What is filaggrin?
The dermal papillae are cylindrical projections of dermis that are most commonly found on the face.
False; dermal papillae are conical projections of dermis that are most commonly found on the hands and feet.
Melanin absorbs _____ _____ in the sunlight, which could cause mutations in the _____ of skin cells.
List four prefixes of words pertaining to the skin.
Possible answers: cut- (skin), derm- (skin), epi- (upon), follic- (small bag), kerat- (horn), melan- (black), seb- (grease), sudor- (sweat)
The ____ ____ ____ is a bundle of ____ ____ cells that attaches to each hair follicle.
What are the arrector pilli muscle, and smooth muscle?