Layers of the skin Flashcards

1
Q

What are the layers of the skin?

A

Epidermis.
Dermis.
HYpodermis.

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2
Q

Which layer is most superficial?

A

Epidermis

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3
Q

Which layer is in the middle?

A

Dermis

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4
Q

Which layer is at the bottom with the adipose tissue?

A

HYpodermis (subcutaneous layer)

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5
Q

What is the Epidermis made up from?

A

Keratinized, stratified squamous epithelium.

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6
Q

What are the 5 layers of the epidermis from top to bottom?

A

Stratum corneum.
Stratum lucidum.
Stratum granulosum.
Stratum spinosum.
Stratum basale.

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7
Q

What is most skin in the body referred to?

A

Thin skin.

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8
Q

Where is thick skin found?

A

On the palms of the hands and the soles of the feet.

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9
Q

What is the name of the cells in all layers with the exception of the stratum basale?

A

Keratinocytes

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10
Q

What do keratinocytes do?

A

They make and store the protein keratin.

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11
Q

What is keratin and what does it do?

A

It makes hair, skin, and nails hard and provides water-resistant properties.

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12
Q

What layer of skin houses blood vessels, nerves, and other structures?

A

The Dermis.

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13
Q

What are the two layers of connective tissue in the dermis?

A

Papillary layer.

Reticular layer.

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14
Q

Inside the papillary layer, what does the cell fibroblasts make?

A

Collagen.

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15
Q

In which layer of the dermis would you find adipocytes and a small number of blood vessels?

A

Papillary layer.

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16
Q

Which layer in the dermis contains phagocytes, lymphatic capillaries, nerve fibers, and touch receptors?

A

Papillary layer.

17
Q

Which layer in the dermis is deep and thicker and contains lots of blood vessels and a rich sensory and sympathetic nerve supply?

A

Reticular layer.

18
Q

What is the reticular layers meshwork of fibers made up of?

A

Elastin fibers and collagen fibers.

19
Q

Which skin layer connects to the underlying fascia?

A

Hypodermis.

20
Q

The hypodermis comprises blood vessels, loose areolar connective tissue, and what?

A

Adipose tissue.

21
Q

The colour of skin is influenced by?

A

Pigments.

22
Q

What cells produce melanin?

A

Melanocytes.

23
Q

What is the name of the cellular vessel that transfers melanin into the keratinocytes?

A

Melanosome.