Integument

Question 1

Epidermis

Answer 1

The superficial layer

Question 2

Dermis

Answer 2

The underlying layer

Question 3

Hypodermis

Answer 3

Lies beneath the skin

Question 4

Keratinocytes

Answer 4

Produce keratin, gives skin resiliency and stregnth

Question 5

Melanocytes

Answer 5

Produce melanin pigment

Question 6

Merkel cells

Answer 6

Close to nerve endings, recieve sensation of touch

Question 7

Langerhans cells

Answer 7

Found in stratum spinosum, involved in allergic and cell- mediated immune response to skin

Question 8

Epidermal Layers

Answer 8

1. Stratum germinativum
2. Stratum spinosum
3. Stratum granulosum
4. Stratum lucidum
5. Stratum corneum

Question 9

Dermal Papillary layer

Answer 9

Help cement the epidermis and the dermis together

Question 10

Dermal Reticular layer

Answer 10

Consists of dense irregular connective tissue

Question 11

Hypodermis

Answer 11

Contains toucher receptors- pacinian corpuscle and meissner’s corpuscle

Question 12

Vibrissae

Answer 12

Whiskers- contain sesnroy endings

Question 13

Wool/secondary hairs

Answer 13

Form the undercoat

Question 14

Arrector pili Muscle

Answer 14

Allows hair to stand on air

Question 15

Sudoriderous glands

Answer 15

Paw pads, exocrine sweat glands

Question 16

Sebaceous glands

Answer 16

Traps moisture, keeps hair soft and helps reduce skin infection

Question 17

Hair shaft

Answer 17

Visible above skin

Question 18

Hair root

Answer 18

Buried within the skin

Question 19

Hair follicle

Answer 19

Anchors the hair

Question 20

Hair bulb

Answer 20

Hair grows from here

Question 21

Anagen growth phase

Answer 21

Cells are added at the base of the root, hair legthens

Question 22

Catagen growth phase

Answer 22

Peroid of transition

Question 23

Telogen growth phase

Answer 23

Maximum length of hair, hair stops growing and held in resting phase

Question 24

Guard hairs

Answer 24

Outer coat

Question 25

Ceruminous gland

Answer 25

Produces ear wax