Integumentary System #1

Question 1

Functions of the Integumentary System

Answer 1

Covering
Regulate Body Temperature
Helps manufacture vitamin D
Nerve receptors
Screenout ultraviolet radiation
Temporary Storage
Special absorptive properties

Question 2

Melanin

Answer 2

Determines the various shades of skin color

Question 3

Palms and Soles

Answer 3

Part of the body with the thickest skin

Question 4

Fingerprints

Answer 4

They are epidermal ridges

Question 5

Vitamin D Importance

Answer 5

Protects against UV radiation

Question 6

Ultraviolet Radiation

Answer 6

Causes DNA mutations and burns that lead to cancer and wrinkles

Question 7

Keratin

Answer 7

Protein that renders the skin dry and provides waterproof covering ; fibrous protein that makes up hair and nails

Question 8

Keratinocytes

Answer 8

Comprises most of the epidermis and produces keratin

Question 9

Merkel Cells

Answer 9

Sensory receptors for touch

Question 10

Melanocytes

Answer 10

Makes melanin, which helps protect the skin again UV r rays from the sun

Question 11

Langerhans Cells

Answer 11

Macrophages that are effective in the defense of the skin against microorganisms

Question 12

Epidermis

Answer 12

Outermost layer of the skin
No blood vessels
Avascular

Question 13

Stratum Corneum

Answer 13

Layer of the epidermis that is considered to be exposed to the surface of the skin

Question 14

Liver

Answer 14

Organ that is most affected by jaundice

Question 15

Cyanosis

Answer 15

Lack of oxygen

Question 16

Epidermal Growth Factor

Answer 16

Used in labs to produce skin grafts

Question 17

Pituitary Gland

Answer 17

Addison’s disease is a disease of this gland

Question 18

Subcutaneous; hypodermal layer

Answer 18

Layer of the skin that contains fatty tissue

Question 19

Dermis

Answer 19

Layer of the skin that contains the blood vessels and nerves

Question 20

Carotene

Answer 20

Orange-yellow pigment

Question 21

Vitiligo

Answer 21

Loss of melanocytes

Question 22

Eyelids

Answer 22

Part of the body where skin is the thinnest

Question 23

Insensible Perspiration

Answer 23

The loss of water through the skin, which does not occur as perceivable sweat.