Integumentary System

Question 1

epidermis

Answer 1

the outer superficial layer of skin made up of epithelial cells

Question 2

keratin

Answer 2

protein contained in the
skin’s outer epidermal cells that waterproofs and protects
underlying cells and tissues

Question 3

melanin

Answer 3

pigment in the inner layer of the epidermis
that protects against harmful ultraviolet radiation and
influences skin color.

Question 4

dermis

Answer 4

skin layer beneath the epidermis; contains
nerve cells, muscle fibers, sweat glands, oil glands, and hair
follicles.

Question 5

sebaceous gland

Answer 5

oil-producing gland in the dermis
that lubricates skin and hair.

Question 6

purpose of the integumentary system

Answer 6

covers and protects the body

Question 7

structures of the integumentary system

Answer 7

skin, nails, hair

Question 8

epidermis structures

Answer 8

epithelial cells, sweat glands, keratin, melanin, hair shaft

Question 9

dermis structures

Answer 9

connective tissue, blood vessels, muscle tissue, oil glands, sweat glands, nerve cells, hair follicles, hair shafts

Question 10

hypodermis/subcutaneous layer

Answer 10

is the layer of connective tissue below the dermis, stores fat and helps the body retain heat.

Question 11

functions of the integumentary system

Answer 11

1. temperature regulation [sweat and goosebumps, helps maintain homeostasis]
2. vitamin D production [for proper bone formation]
3. Protection [from micro-organisms, excess water loss, UV
   rays]
4. Senses [info about pain, pressure, temp changes,
   etc. to the brain]

Question 12

burn classifications

Answer 12

1st degree: redness & swelling
2nd degree: blisters
3rd degree: Skin function is lost, no pain due to nerve
cell damage.

Question 13

melanoma detection (abcde)

Answer 13

Asymmetrical shape
Border irregularity
Color
Diameter
Evolving Changes