Exam 2 Slide Show Integumentary (pt5)

Question 1

What type of glands are aprocrine sweat glands?

Answer 1

Merorcrine glands

Question 2

Both eccrine and apocrine sweat glands contain which cells?

Answer 2

Myoepithelial cells

Question 3

In what condition do keratinocytes divide and move more quickly than normal from the stratum basale to the stratum corneum, and shed prematurely?

Answer 3

Psoriasis

Question 4

Which sweat gland is smaller and excretes directly onto the surface of the skin?

Answer 4

Eccrine sweat glands

Question 5

Virtually all skin cancers are attributed to what?

Answer 5

Excessive exposure to the sun

Question 6

What are the three common forms of skin cancer?

Answer 6

Basal cell carcinomas (most common)

Squamos cell carcinomas

Malignant melanomas (least common, most life threatening)

Question 7

What are specialized actin-containing epithelial cells that contract to expel glandular secretions

Answer 7

Myoepithelial cells

Question 8

What is the inherited inability of an individual to produce melanin, so it is missing from their hair, eyes, and skin

Answer 8

Albinism

Question 9

Albinism mostly occurs because of what reason?

Answer 9

Melanocytes are unable to synthesize tyrosinase

Question 10

Which form of skin cancer is the most common?

Answer 10

Basal cell carcinomas

Question 11

What may be an autoimmune disorder in which the melanocytes are attacked and killed.

Answer 11

Vitiligo

Question 12

Which sweat gland is larger and secrete into the pilary canal of a hair follicle?

Answer 12

Aprocrine sweat glands

Question 13

Which form of skin cancer is the most life threatening?

Answer 13

Malignant melanomas (least common)

Question 14

What is cyanosis due to?

Answer 14

Hemoglobin being depleted of oxygen and looking deep, purplish blue

Question 15

What is the partial or complete loss of melanocytes from patches of skin?

Answer 15

Vitiligo

Question 16

What is redness of the skin known as?

Answer 16

Erythema

Question 17

During epidermal wound healing, what moves up to form the more superficial layers?

Answer 17

Keratinocytes

Question 18

What causes Jaundice?

Answer 18

A buildup in the blood of the yellow pigment bilirubin

Question 19

What is an inflammation of the skin characterized by redness, itching, and swelling, and caused by exposure of the skin to chemicals that bring about an allergic reaction

Answer 19

Contact dermatitis

Question 20

Jaundice usually indicates what?

Answer 20

A liver disease

Question 21

Fibroblasts produce what?

Answer 21

Collagen

Question 22

What is a partial or complete lack of hair?

Answer 22

Alopecia

Question 23

Where do fibroblasts come from?

Answer 23

Mesenchymal cells pluerapotent)

Question 24

Explain the order of deep wound healing.

Answer 24

1. blood clot forms
2. fibroblasts migrate in the wound and produce collagen fibers
3. Growth of epidermal cells beneath the scab and regeneration of blood vessels
4. Scab is lost

Question 25

What is a form of scarring of the skin, caused by tearing of the dermis?

Answer 25

Striae