Nails
____ are protective coverings on the ends of the fingers and toes. (Hole's Essentials of Human Anatomy & Physiology, pg 122)
What are the nails?
True or False: All people have about the same number of melanocytes in their skin. (Hole's Essentials of Human Anatomy & Physiology, pg 120)
What is true?
Hair is present on all skin surfaces except the palms, soles, lips, ____, and parts of the external reproductive organs.
A skin gland that secretes sebum. (Hole's Essentials of Human Anatomy & Physiology, pg 124)
What is a sebaceous gland?
A disease of the sebaceous glands that produces black heads and pimples. (Hole's Essentials of Human Anatomy & Physiology, pg 127)
What is acne?
Each nail consist of a nail plate that overlies a surface of the skin called the ____ ___. (Hole's Essentials of Human Anatomy & Physiology, pg 122)
What is the nail bed?
___ _____ usually arises in nonpigmented epithelial cells in the deep layer of the epidermis, oe from melanocytes. (Hole's Essentials of Human Anatomy & Physiology, pg 121)
What is skin cancer?
Genes determine hair color by directing the type and amount of _____ that epidermal melanocytes produce. (Hole's Essentials of Human Anatomy & Physiology, pg 122)
What is pigment?
Exocrine gland in skin that secretes a mixture of water, salt, urea, and other bodily substances. (Hole's Essentials of Human Anatomy & Physiology, pg 124)
What are sweat glands?
Hair loss, usually sudden. (Hole's Essentials of Human Anatomy & Physiology, pg 127)
What is alopecia?
The whitish, thickend, half-moon-shaped region at the base of the nail plate. (Hole's Essentials of Human Anatomy & Physiology, pg 122)
What is the lunula?
Skin color is due largely to ____. (Hole's Essentials of Human Anatomy & Physiology, pg 120)
What is melanin?
Dark hair has more of the brownish-black _____, while blonde hair and red hair have more of the reddish-yellow pheomelanin. (Hole's Essentials of Human Anatomy & Physiology, pg 123)
What is eumelanin?
A sweat gland that maintains body temperature. (Hole's Essentials of Human Anatomy & Physiology, pg 124)
What is an eccrine gland?
Fungus (Tinea pedis) infection usually in the skin of the toes and soles. (Hole's Essentials of Human Anatomy & Physiology, pg 127)
What is athlete's foot?
The ______ grows the slowest; the middle nail grows the fastest. (Hole's Essentials of Human Anatomy & Physiology, pg 122)
What is the thumbnail?
The skin includes two distinct layers the ____ and the ____. (Hole's Essentials of Human Anatomy & Physiology, pg 117)
What is the epidermis and the dermis?
Each hair develops from a group of _____ ___ at the base of a tubelike depression called a hair follicle. (Hole's Essentials of Human Anatomy & Physiology, pg 122)
What is epidermal cells?
A type of gland whose secretions have parts of secretory cells. (Hole's Essentials of Human Anatomy & Physiology, pg 124)
What is an apocrine gland?
Congenital blemish or spot on the skin, visible at birth or soon after. (Hole's Essentials of Human Anatomy & Physiology, pg 127)
What is a birthmark?
The keratin of nails is harder than the produced by the ________ _____ ______. (Hole's Essentials of Human Anatomy & Physiology, pg 122)
What is the epidermal stratum corneum?
Beneath the dermis is loose connective tissue, predominantly adipose tissue, that binds the skin to underlying organs forming the __________ ____. (Hole's Essentials of Human Anatomy & Physiology, pg 117)
What is the subcutaneous layer?
If someone is emotionally upset or very cold, nerve impulses may stimulate the arrector pili muscles to contract, causing gooseflesh, or goose bumps. (Hole's Essentials of Human Anatomy & Physiology, pg 123)
What is an arrector pili muscle?
The average square inch (6.45 square centimeters) of skin holds ____ sweat glands. (Hole's Essentials of Human Anatomy & Physiology, pg 124)
What is 650 sweat glands?
Bacterial infection (furuncle) of the skin, produced when bacteria enter a hair follicle. (Hole's Essentials of Human Anatomy & Physiology, pg 127)
What is a boil?