Accesory Structures Of Skin Pt. 2 Flashcards
Sebaceous Glands:
Found in ALL regions of the body except palms of hands and soles of feet
Produce lipid mixture SEBUM that lubricates skin & hair and protect against infections
Arranged like grapes
Holocrine Secretion:
The glandular cells secrete SEBUM by rupturing that drains into a hair follicle
In hairless areas, it drains into ducts thst go to the skin’s surface
2 rypes of sweat glands;
Merocrine and Apocrine swear glands
Merocrine sweat glands:
Regulate body temperature that release via ducts onto skin’s surface
Releasing sweat will cool body down
Apocrine Swear Glands:
Restricted to ONLY regions around nipples, armpits, anogential area
Do not become functional until puberty
Increase dhring stress, pain, sexual arousal
What cells produce sweat?
Glandular Cells produce and secrete sweat
How does sweat travel
Throught sweat gland duxts into dermis, epidermis, skin’s surface
Tactile Corpulscles:
Nerve endings wrapped in a connective tissue sheath
Sensation, sensitive to touch
nipples, lips, fingertips, palms, feet
Lamellated Corpuscles:
Nerve endings onion-shaped connective tissue
Respond to DEEP pressue sendstions in dermis and hypodermis
Tactile Discs:
Disc-shaped nerve endings w/ tactile cells deep in epidermis
Sensitive to light touch
Free nerve endings:
Sensory neurons that extend into the epidermis
Respond to pain and temperature sensations