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Hair is located on all body parts except
- palms of hands
- soles of feet
- lips and penis
- external genital
- nipples and breasts
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This is a projects from hair ____located in the dermis of the skin
follicle
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The portion of the hair within the follicle is called the hair?
root
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The portion that extends beyound the skin is called the hair?
shaft
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Name two type of hair.
Vellus hair and terminal hairs
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found on much of the body's surface
vellus hair
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are heavy, more pigmented, and sometime curly ex. head hairs, eyebrows, eyelashes.....
terminal hair
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located on the distal end of the nails
composed of keratin; cuticles is a fold of skin that hides the nail root
nails
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releases substance onto epithelium of skin through a duct lined with simple cuboidal ET
Exocrine glands
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sweat glands is also called
sudoriferous gland
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produces sweat and are present in all regions of skin
sudoriferous
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two types of sweat glands
apocrine and eccrine
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glands open into hair follicles in the anal, region, and armpits
apocrine
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glands open onto the surface of the skin
eccrine
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these glands cool body temperature and become active when body temperature is too hot
eccrine
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develop at puberty, activate under stress
apocrine
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modified eccrine glands that produce earwax
ceruminous
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modified sweat glands that produce milk for women after childbirth
mammary glands
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oil glands are also called
sebacceous gland
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produce oil (sebum) and are associated with a hair
oil gland
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results from sebaceous glands that fail to discharge oil
blackhead and whiteheads
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pores clogged with sebum and covered with the epdermis
whiteheads
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occur when sebum is at the surface with melanin at the top layer covering the pore
blackheads
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inflammation of the sebaceous glands
acne vulgaris
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sebum is an oily mixture of lipids, cholestrol, and cell fragments produced by what gland
sebaceous gland
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