IS: Sweat/Sebaceous Glands Flashcards
Sweat glands are also known as…
sudoriferous glands
What are the two types of sweat glands?
- eccrine
2. apocrine
Both sweat glands have the same secretory cells […]. Specialized cells that […] when stimulated by the nervous system.
myoepithelial cells; contract
Contraction does what to the glands?
contraction forces sweat into and through the duct system to the skin surface
Eccrine sweat glands known as..
merocrine sweat glands
T/F: There are more apocrine cells than eccrine?
False
Where can you find an abundance of eccrine glands?
palms, soles of the feet, and forehead
Each gland is […], coiled, and […].
simple; tubular
The secretory part lies[…] in the […] while the duct extends to open in a […] at the skin surface.
coiled; dermis; funnel-shaped pore
T/F Sweat pores are just like pores of a person’s complexion.
False– the latter are openings for hair follicles
Eccrine gland secretion is commonly […] (substance).
sweat
Sweat composition:
99% water, some salts (NaCl), metabolic waste, and a microbe killing peptide
What is the microbe killing peptide found in sweat?
dermcidin
What are the metabolic wastes found in sweat?
urea, uric acid, and ammonia
Sweat is […] having a pH between […].
acidic; 4-6
Sweats purpose:
regulation– prevent the body from overheating
protection– release dermcidin and metabolic wastes
Where does sweat begin?
at the forehead (then travels inferiorly)
Emotionally induced sweat begins…
on the palms, soles, and axillae before spreading
Where are the 2000 apocrine sweat glands confined at?
the axillary and anogenital areas
Apocrine (sweat glands) are […] glands, which release their product by […] like the eccrine […].
merocrine; exocytosis; sweat glands
Apocrine glands lie […] in the […] or even in the […] tissue.
deeper; dermis; subcutaneous
Apocrine glands ducts empty into…
hair follicles
Apocrine secretion contains…
the same basic components as true sweat, plus fatty sub and proteins
Apocrine secretion appearance:
viscous, milky/yellowish color
Apocrine secretion scent:
odorless but when bacteria on the skin decompose its organic molecules its musky/unpleasant (BO)
Apocrine glands begin functioning at…
puberty
Apocrine glands begin functioning under the influence of […] a male sex […] and play little role in maintaining […].
androgens; hormones; temperature
What is the apocrine gland function?
not known
Apocrine glands are the equivalent of animals’ […].
sexual scent glands
What are the 3 reasons for believing that the apocrine glands is equivalents to an animals’ sexual scent gland?
- sexual foreplay increases their activity
- they enlarge and recede with the phases of a woman’s menstrual cycle
- secretions may act as pheromones
What are the two types of modified apocrine glands?
- ceruminous glands
2. mammary glands
Where can you find ceruminous glands?
the lining of the external ear canal
Earwax is also called […].
cerumen
Mammary glands secrete […].
milk
The sebaceous glands or […] glands.
oil
Description of sebaceous glands?
simple branched alveolar glands
Where are sebaceous glands found?
all over the body except the thick skin of the palms and soles
Sebaceous glands are small on the […] and […], but quite large on the […], […], and […] chest.
body trunk; limbs; face; neck; upper
What do sebaceous glands secrete? What does that product consist of?
sebum
bacteria killing properties (bactericidal)
Sebaceous– The central cells of the […] accumulate oily […] until they become so engorged that they […].
alveoli; lipids; burst
Functionally, sebaceous glands are […] glands.
holocrine
Most sebaceous glands develop as…
outgrowths of hair follicles
[…] contractions force sebum out of the hair follicles to the skin surface.
arrector pili
What does sebum do for the hair and skin (3).
- lubricates to prevent brittleness
- lubricates to slow water loss
- bactericidal (bacterium-killing) action
