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32 Cards in this Set
- Front
- Back
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How many skin appendages does the human body have? |
3 |
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What are the appendages? |
nails, hair and hair follicles and glands in the skin |
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What are the types of cutaneous glands? |
sebaceous glands and sudoriferous (sweat) glands. They are also classified as being exocrine glands |
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what are exocrine glands? |
glands that release secretions to the skins surface via ducts |
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Where are sebaceous glands found? |
all over the skin, except on the palms of the hands and the soles of the feet |
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What do sebaceous glands do? |
helps to keep epidermal cells waterproof. keeps water out and keeps water in the body |
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What is Sebum? |
product of sebaceous glands. A mixture of oily substances and fragmented cells. |
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What does sebum do? |
lubricates the skin and prevents hair from becoming brittle. Also kills bacteria |
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What happens when a sebaceous gland becomes blocked by sebum? |
a whitehead appears. If the whitehead oxidizes, it darkens into a blackhead |
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What is acne? |
an active inflammation of the sebaceous glands. Produces pimples on the skin |
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What causes pimples? |
oversecretion of sebum |
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What is seborrhea? |
over action of the sebaceous glands |
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What is seborrhea also known as? |
cradle cap |
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When do sebaceous glands become active |
puberty |
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A decrease in sebum during late adulthood causes what? |
the skin to become dry and crack |
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How many sweat glands are there in the human body? |
up to 3million |
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What glands are the sweat glands composed of? |
eccrine and apocrine |
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Where are eccrine glands found? |
everywhere |
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Where are apocrine glands found? |
in the armpits and genitalia. |
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Which of the two types of sweat glands are more numerous? |
eccrine |
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What are eccrine glands made of? |
water, some salts, vitamin c, metabolic wastes (urea, uric acid, ammonia), Lactic acid, antibodies |
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What ph does sweat have? |
between 4 to 6. It is acidic |
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Up to how many liters of body water does your body release on a hot? |
Up to 7 liters of body water |
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Where does heat induced sweating start? |
forehead and spreads inferior |
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Where do cold sweats start? |
palms, soles of the feet, axillae and then spreads to other body areas |
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Where are the ducts of apocrine glands found? |
They usually empty into hair follicles |
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What do the secretions of apocrine glands contain? |
fatty acids, proteins, water, some salts, vitamin c, traces of metabolic wastes, Lactic acid, antibodies |
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Which type of sweat gland produces an odor when bacteria that live on the skin use its proteins and fats as a source of nutrients for their growth? |
apocrine |
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What is the main role of apocrine sweat glands? |
It is yet unknown. However, they do play a small role in thermoregulation |
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Which type of gland releases pheromones? |
apocrine |
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What are ceruminous glands? |
modified apocrine glands found in the external ear canal. It produces a bitter, sticky substance called cerumen and is also known as earwax. |
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Mammary glands |
also a type of sweat gland |
