1. Integumentary System

Question 1

What is the integumentary system?

Answer 1

• comprise of skin and it’s appendages
• protects the body from damage
• largest organ of the body

Question 2

Components of the integumentary system

Answer 2

Hair
Skin
Glands
Claws/nails
Horns/ feathers
Feathers
Scales

Question 3

Skin structure
Epidermis

Answer 3

Waterproof outer layer
Keeps pathogens out
Gives skin colour

Question 4

Skin structure
Dermis

Answer 4

Contains hair follicles, nerves, blood vessels and glands
Regulates body temp

Question 5

Skin structure
Subcutaneous Layer

Answer 5

Made of connective tissue
High fat content for insulation and shape

Question 6

Glands
Sweat

Answer 6

Sudoriferous glands

Question 7

Glands
Waterproof + lubricate

Answer 7

Subeceous (oil) glands secrete sebum which waterproofs skin and lubricates hair

Question 8

Glands
Ear wax

Answer 8

Ceruminous glands found in the external eat canal and secrete wax

Question 9

Hair structure

Answer 9

Made of keratin
Produced by follicles

Question 10

Hair structure
Downy hair

Answer 10

Soft, fine, dense hairs
Undercoat

Question 11

Hair structure
Dermis

Answer 11

Thick, long, stiff
Protective outer coat
Guard hair surrounded by 12 downy hairs

Question 12

Hair structure
Tactile

Answer 12

Vibrissae or whiskers
Thicker and extend beyond coat
Follicles surrounded by nerves

Question 13

Horns

Answer 13

Hollow, made of a cone of keratin that surrounds a mass

Question 14

Antlers

Answer 14

Made of bine with a velvety coating as animals mature it becomes compact bone tissue

Question 15

Nails

Answer 15

A nail matrix forms on top of the dermis the root of the nail grows from a thick layer

Question 16

Claws and hooves

Answer 16

Made of a section of the dermis which is covered in a layer of keratinized epithelium (cells in a layer)