Integumentary System

Question 1

Integumentary system is composed of

Answer 1

Skin and it’s accessory organs

Question 2

Skin and accessory organs

Answer 2

Sweat glands, sebaceous glands, hair, fingernails and toenails

Question 3

The skin is the largest organ. How much does it weigh?

Answer 3

20 Pounds

Question 4

Skin serves several important functions. What are they?

Answer 4

-Protection
-Holds the nerve receptors
-Secretes Fluids
-Regulates body temperature

Question 5

Protection of the skin

Answer 5

-Keeps pathogens out
-Keeps important body fluid in

Question 6

Nerve receptors held by the skin

Answer 6

-Touch
-Pressure
-Pain
-Temperature

Question 7

Fluids that secrete from the skin

Answer 7

Mucus, sweat, sebaceous oils

Question 8

Ways that the skin regulates body temperature

Answer 8

Evaporation from sweat glands & insulation from fat layer

Question 9

3 types of Epithelial tissue membranes in the body

Answer 9

-Cutaneous Membrane
-Serous Membrane
-Mucous Membrane

Question 10

Cutaneous Membrane

Answer 10

Visible skin

Question 11

Serous Membrane

Answer 11

Skin lining the body cavities and organs

Question 12

Mucous Membrane

Answer 12

The skin that lines all the body openings

Question 13

3 layers of the Cutaneous Membrane

Answer 13

-Epidermis
-Dermis
-Subcutaneous

Question 14

Epidermis

Answer 14

The outermost layer composed of stratified squamous cells

Question 15

Dermis

Answer 15

The second layer which supports all the working parts of the skin

Question 16

Subcutaneous

Answer 16

-Fat layer composed of lipocytes
-provides insulation
-Works as a shock absorber
-Stores water

Question 17

Dead skin cells are filled with?

Answer 17

Protein called keratin that holds them together and makes the skin waterproof

Question 18

The deepest layer is called?

Answer 18

The basal layer where the cells are born

Question 19

Melanocytes

Answer 19

Secrete a black pigment called melanin

Question 20

Blood vessels

Answer 20

Arteries, veins, capillaries

Question 21

Nerves

Answer 21

Provides a sense of touch

Question 22

Sweat glands

Answer 22

Cool the body

Question 23

Sebaceous glands

Answer 23

Secrete oil to keep the skin lubricated

Question 24

Hair follicles

Answer 24

Always associated with sebaceous glands

Question 25

Arrector pili muscles

Answer 25

Pulls hair upright

Question 26

Collagen

Answer 26

Protein that holds skin together and gives it elasticity

Question 27

Fingernails and toenails

Answer 27

Hard keratin plates to cover the end of fingers and toes

Question 28

Nail body

Answer 28

Visible part of nail

Question 29

Lunula

Answer 29

Crescent shaped white area near the nail root

Question 30

Nail root

Answer 30

The portion of the nail under the skin surface that holds the nail in place in from which it grows

Question 31

Free edge

Answer 31

The portion of the nail that extends beyond the finger or toe

Question 32

Nail bed

Answer 32

The epithelium visible under the nail

Question 33

Lesions of the body are identified by the location size in appearance

Answer 33

Papule Nodule Macule Vesicle Wheal Pustule Ulcer Fissure Cicatrix Keloid Cyst

Question 34

Papule (pimple)

Answer 34

Firm raised lesion, less than .5 cm.

Question 35

Nodule

Answer 35

Elevated,solid lesion that is deeper than a Papule, 0.5 to 2 cm

Question 36

Macule

Answer 36

Flat discoloration less than 1 cm in diameter

Question 37

Vesicle

Answer 37

Thin walled blister filled with fluid less than 0.5 cm in diameter, larger blisters are called bulla

Question 38

Wheal

Answer 38

Transient raised lesions or irregular shape with a light center, size varies

Question 39

Ulcer

Answer 39

Open lesión caused by disintegration of the skin

Question 40

Decubitus ulcer

Answer 40

Bed sore caused by constant pressure