Skin

Question 1

What is the Epidermis?

Answer 1

Composed of keratinized stratified squamous epithelium, it is the outermost layer of the skin.

Question 2

What is the Dermis?

Answer 2

The deep, connective tissue portion of the skin that contains blood vessels, glands, and hair follicles.

Question 3

Hair follicle

Answer 3

The region of epi- dermis that has invaginated to accommodate the formation of a hair shaft

Question 4

Arrector Pili Muscle

Answer 4

Contraction of this muscle pulls the hair to an erect position

Question 5

Sebaceous (oil) Gland

Answer 5

Produce sebum, which has antibacterial, antifungal and lubricating properties.

Question 6

Hair Bulb

Answer 6

The bulbous portion of the hair follicle, located within the dermis, that provides the material for hair production

Question 7

Planum Nasale

Answer 7

The topmost plane of the muzzle in such species as cats, dogs, pigs, and sheep.

Question 8

stratum basale or basal layer

Answer 8

layer consists of a single row of keratinocytes. It is in thin skin

Question 9

What is the Hypodermis/Subcutaneous layer

Answer 9

The layer of adipose tissue located beneath the epidermis and dermis that insulates and protects the body.

Question 10

stratum spinosum or spiny layer

Answer 10

contains several layers of cells which are still actively dividing. Thin Skin

Question 11

stratum lucidum or clear layer

Answer 11

only found in very thick skin

Question 12

stratum granulosum or granular layer

Answer 12

is named for having keratohyalin granuales and lamellated granuales Thin skin

Question 13

stratum corneum or horny layer

Answer 13

outermost layer and dominates the epidermis

Question 14

Chestnuts

Answer 14

dark brown, found on the inside of each leg at the carpus (knee) of the forearm and at the taurus or hock of the hind leg

Question 15

Ergots

Answer 15

Similar to Chestnuts, much smaller , often overlooked, because they are usually buried in the long, caudal hairs of the fetlock.

Question 16

Equine Hoof part one

Answer 16

Question 17

Equine lower leg

Answer 17

Question 18

Bovine Horn

Answer 18

Question 19

Structure of the cat claw

Answer 19

Question 20

Integument Model

Answer 20

Question 21

Two types of Sweat glands

Answer 21

Eccrine and Apocrine

Question 22

Eccrine Sweat Gland

Answer 22

Empty onto surface of skin through a long duct

Question 23

Apocrine Sweat Gland

Answer 23

Empty into hair follicles

Question 24

Sebum

Answer 24

Coats the base of the hair and surrounding skin

Question 25

Keratinized

Answer 25

Keratin is tough protective protein that covers surface

Question 26

Keratinization

Answer 26

Occurs when cell expires, losing important nucleus and organelles

Question 27

Melanocytes

Answer 27

Contain melanin (Pigment)

Question 28

Keratinocytes

Answer 28

majority, waterproof, touch protein whic gives skin resiliency and strength

Question 29

Merkel Cells

Answer 29

Touch sensation, deepest layer of epidermis

Question 30

Langerhans Cells

Answer 30

Macrophages

Question 31

Hair Follicle Pic

Answer 31