Integumentary System

Question 1

Psoriasis

Answer 1

skin disorder where the skin cells of the epidermis grow at an abnormally fast rate

Question 2

Malignant Melanoma

(A)BCD rule

Answer 2

Asymmetry, 2 sides of pigmented mole do not match

Question 3

Malignant Melanoma

A(B)CD

Answer 3

Border irregularity, borders of mole aren’t smooth

Question 4

Malignant Melanoma

AB(C)D

Answer 4

Color, different colors in pigmented area

Question 5

Malignant Melanoma

ABC(D)

Answer 5

Diameter, spot is larger than 6mm in diameter

Question 6

Dermis layers

Answer 6

Papillary and reticular

Question 7

Function of (hypo)dermis

Answer 7

provides insulation and energy reserve

Question 8

Composition of (hypo)dermis

Answer 8

Contains layers of areolar and adipose tissue with many fat cells

Question 9

Papilla

Answer 9

contains hair capillaries and nerves

Question 10

Matrix

Answer 10

contains epithelial stem cells that divide, push towards the surface, and keratinize

Question 11

Root

Answer 11

bottom of hair (where it begins to grow)

Question 12

Shaft

Answer 12

end of hair (near the top)

Question 13

Arrector pilli

Answer 13

bundle of smooth muscle cells that contract and pull on the follicle causing the hair to stand

Question 14

Sebum

Answer 14

oil that is secreted into hair & skin by sebaceous glands

Question 15

Apocrine (sweat) gland

Answer 15

secrete oily fluid that is found in axillary & around genital regions

Question 16

Merocrine (sweat) gland

Answer 16

discharge their secretions directly onto the surface of skin

Question 17

First degree burns

Answer 17

only epidermis is damaged

e.g.: sunburns

Question 18

Second degree burns

Answer 18

epidermis and upper dermis are damaged

e.g.: boiling water burns

Question 19

Third degree burns

Answer 19

destroys all layers including blood & nerves

e.g.: burn is grey, white, or black, often no pain left

Question 20

Put the layers of the skin in order:

Answer 20

epidermis, dermis, hypodermis