Integumentary System #2 Flashcards
What is the name of the involuntary smooth muscle that causes hair to standup and produces goosebumps?
Arrector Pilli
What is located deep in the dermis, produces nonliving hairs, wrapped in a dense connective tissue sheath and its base is surrounded by sensory nerves (root hair plexus)?
Hair Follicle
What lubricates hair and helps control bacteria?
Sebaceous Glands
What is the name of the lower part of the hair; attached to the integument?
Hair Root
What is the name of the upper part of the hair; not attached to the integument?
Hair Shaft
What is firmly attached to the matrix?
Growing Hair
What are soft, fine hair that covers the body surface known as?
Vellus Hairs
What is the name of the heavy, pigmented hair that covers the head, eyebrows, and eyelashes?
Terminal Hairs
What contains flexible soft keratin?
Medulla
What contains stiff hard keratin?
Corteal Cuticle
What is produced by melanocytes at the hair papilla; determined by genes?
Hair Color
What are hard structures covering the dorsal surfaces of the last phalanges of the fingers and toes?
Nails
What occurs in a deep epidermal fold near the bone called the nail root?
Nail Production
What is also known as the sudoriferous glands? Perspiration is 99% water; perspiration is excreted through
pores; under the control of the nervous system.
Sweat Glands
What secretes sebum which is thick, oily substance? It helps lubricates the skin, keeping it soft and pliable.
Sebaceous Glands
What is found in armpits, around nipples, and groin? It secretes products into hair follicles; Surrounded by myoepthlial cells
Apocrine Sweat Glands
What is widely distributed on body surfaces - especially on the palms and soles?
Merocrine (Eccrine) Sweat Glands
What contains lipids and other ingredients? It helps lubricates and protects the epidermis and inhibits bacteria.
Sebum
What helps cool the skin, excretes water and electrolytes and flushes microorganisms and harmful chemicals
from skin?
Merocrine Sweat Glands
What anatomical structure helps produce milk?
Mammary Glands
What helps produce cerumen (earwax)? It also helps protects the eardrum.
Cermuminous Glands
What helps control sebaceous and apocrine sweat glands? It works simultaneously over entire body.
Autonomic Nervous System (ANS)
What do hair bulbs produce?
Hair Matrix
Hair Papilla
Contains Capillaries and Nerves
What is the main function of sensible perspiration? It works with cardiovascular system and helps regulates
body temperature.
Thermoregulation
What helps protects and insulate - it guards openings against particles and insects. It is sensitive to very light touch.
Function of hair
What is the effect of aging on the skin?
Becomes more fragile
Loss of elasticity
Less effective body temperature control
Melanocytes decrease
Physiological changes can impact self-worth
