Skin Part 1- 3

Question 1

What are the 3 main types of feathers?

Answer 1

Contour
Down
Filoplume

Question 2

What types of feather type has a central shaft, Quill or calamus, rachis?

Answer 2

Contour

Question 3

What type of feather is the following:
Hook-less barbules

Answer 3

Down

Question 4

What type of feather is the following:
Hair-like, no barbules

Answer 4

Filoplume

Question 5

What do feather papilla give rise to?

Answer 5

Feather pulp

Question 6

What parts of a chicken are highly vascularized dermis rich in mucin tissue?

Answer 6

Wattle and comb

Question 7

What is the specialized structure with thick keratinized outer layer?

Answer 7

Beak

Question 8

What is the thick keratinized outer layer of a beak called?

Answer 8

Ramphotheca

Question 9

What is the keratinized epidermis covering distal end of digit?

Answer 9

Hoof

Question 10

What mammal has epidermal scales?

Answer 10

Pangolins

Question 11

What has a modified epidermis that can be shed?

Answer 11

Epidermal scales

Question 12

What type of epidermis has modified and thickened stratum corneum?

Answer 12

Epidermal scales

Question 13

What epidermal layer can be shed in animals with epidermal scales?

Answer 13

Corneal layer only

Question 14

Where are dermal scales derived from?

Answer 14

Mesenchyme

Question 15

What type of scales cannot be shed?

Answer 15

Dermal scales

Question 16

What does arrector pili smooth muscle allow in down and counter feathers?

Answer 16

Movement

Question 17

What does the following make up in regards to feathers?

Stratum corneum
Stratum germinativum
Connective tissue layer

Answer 17

Feather follicle

Question 18

What type of stain do you use for wattles and combs, and which color does the dermis stain?

Answer 18

Alcian blue
Stains pink

Question 19

What type of mammal have dermal scales?

Answer 19

Armadillos

Question 20

What type of animal has both dermal and epidermal scales?

Answer 20

Turtles