L2 Flashcards by kenneth yang | Brainscape

Q

What are the 4 accessory structures?

A

Hair, sweat glands, receptors, nails

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Q

Hair made of and consists of

A

dead keratinised cells in follicle

arrector pili muscle (goose bumps)

Root hair plexus (sensory nerves at base of follicle)

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Q

Hair what are sebaceous glands

A

produce sebum, nourishes hair and moisturises skin

water repellent

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Q

Eccrine sweat glands

A

watery secretions for thermoregulation

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Q

Apocrine sweat glands

A

Armpits: sticky odorous secretions

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Q

Function of nails

A

protects fingertips, enhances sensation

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Q

what does melanin pigment do?

A

Absorbs UV light to protect cells against damage

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Q

what cells produce melanin?

A

melanocytes

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Q

what are melanosomes?

A

transfers melanin to epidermal

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Q

where are melanocytes found?

A

Basale

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Q

Where are melanosomes found?

A

through out epidermis

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Q

what is a mole?

A

Cluster of melanocytes due to over proliferation

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Q

what is a freckle?

A

melanocytes overproducing melanosomes

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Q

what layer is tatto deposited?

A

Dermal layer

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