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Lesson 10: The Integumentary System > Chapter 5: Types of Lesions of the Skin Layers > Flashcards

Chapter 5: Types of Lesions of the Skin Layers Flashcards

1
Q

What is a skin lesion?

A

A pathologic change of the tissue due to disease or injury.

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2
Q

What is a Macule?

A

A circumscribed area of change in skin color.

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3
Q

What is the elevation and depression of a Macule?

A

Less than 1 cm in diameter.

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4
Q

What is an example of a Macule?

A

A freckle.

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5
Q

What is a Papule?

A

A superficial, elevated solid lesion.

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6
Q

What is the elevation and depression of a Papule?

A

Generally less than 0.5 cm in diameter.

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7
Q

What is an example of a Papule?

A

An insect bite.

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8
Q

What is a Palque?

A

A Plateau-like elevation above the skin surface formed by closely space papules.

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9
Q

What is an example of a Plaque?

A

Plaques from psoriasis.

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10
Q

What is a Nodule?

A

A palpable, solid lesion that is larger than a papule.

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11
Q

What does a Nodule may involve?

A

The epidermis, dermis and subcutaneous tissue.

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12
Q

What differentiates a Nodule from a Papule?

A

The depth of involvement and the size.

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13
Q

What type of patients develop Nodules under the skin, usually near joints?

A

Some patients with rheumatoid arthritis.

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14
Q

What is a Wheal?

A

A rounded pale red papule that itches.

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15
Q

A Wheal is also known as?

A

Welt.

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16
Q

How long it takes a Wheal to disappear?

A

Within 24 to 48 hrs.

17
Q

What is an example of Wheal?

A

Hives from an allergic reaction.

18
Q

How does a Crust develops.

A

When serum, blood or pus dries on the skin’s surface.

19
Q

What is an example of a crust?

A

A scab.

20
Q

What is a scar (cicatrix)?

A

The fibrous tissue replacement after damage to the skin from a wound or injury.

21
Q

Since the skin cannot regenerate, what does the collagen in scar tissue does?

A

Reconnects the broken skin.

22
Q

What is the difference between the scar tissue and the tissue before the wound?

A

Scar is less strong and less elastic.

23
Q

Are sweat glands and hair follicles present in scar tissue?

A

No.

24
Q

How does an Ulcer heals?

A

Always with scar formation.

25
Q

What is an example of an Ulcer?

A

A bedsore.

Lesson 10: The Integumentary System (19 decks)

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