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Science For Medicine Jess > Skin > Flashcards

Skin Flashcards

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Biology 101 flashcards
1
Q

What type of tissue is the epidermis?

A

A stratifies squamous epithelium.

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2
Q

What is the skin?

A

An organ.

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3
Q

What are the 3 layers of the skin?

A

epidermis (above),
dermis,
hypodermis.

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4
Q

What tissues make up the skin?

A

Connective,
epithelial,
muscle
and nervous.

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5
Q

What are keratinocytes?

A

Epidermal skin cells, barrier against environmental damage.

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6
Q

What are the functions of the epidermis?

A

creates a waterproof barrier.

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7
Q

What are the functions of the dermis?

A

UV protection,
energy storage,
Sensory information.

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8
Q

What type of tissue is the epidermis?

A

epithelial tissue,
stratified squamous.
Keratinising.

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9
Q

What type of tissue is the dermis?

A

Connective tissue - gives structural strength.

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10
Q

What do melanocytes do?

A

Formation of pigment.

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11
Q

What do Langerhans do?

A

Immune surveillance

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12
Q

What are merkel cells?

A

touch receptors

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13
Q

How many layers make up the epidermis? What are they called, from bottom to top?

A

5

Stratum Basale

Straytum spinosum

Stratum Granulosum

Stratum Lucidum

Stratum corneum (closest to surface)

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14
Q

What is keratinisation?

A

Production of keratin. Cells move up from basale layer until they die. keratin produced in stratum granulosum.

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15
Q

What are the two layers of the dermis?

A

Papillary(above) and Reticular(deeper).

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16
Q

What is psoriasis?

A

Overproduction of keratin.

17
Q

What is the organisation of the tissue like in the dermis?

A

Papillary(above):
smooth, organised

Reticular:
fibrous, disorganised

18
Q

Where are the sebaceous glands found?

A

The dermis.

19
Q

What are the skin’s ‘accessory structures’?

A

Hair
Nails
Sweat glands

20
Q

Where are melanocytes found?

A

Basal layer of epidermis.

21
Q

What do Meissners corpsucles do?

A

Sense light touch

22
Q

What do Paccinian corpuscles do?

A

Sense vibration and pressure.

Science For Medicine Jess (28 decks)

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