Exam 2

Question 1

What causes the dispersion of melanin granules? this is what causes different pigments in animals. This hormone originates in the intermediate lobe of the hypophysis.

Answer 1

Melanocyte stimulating hormone

Question 2

Where would you be most likely to find transitional epithelium

Answer 2

in the bladder of the urinary tract

Question 3

In a compound follicle a primary hair is also known as a ______ hair

Answer 3

guard

Question 4

Which type of melanin causes hair to appear yellowish and reddish?

Answer 4

Pheomelanin

Question 5

What is the main, hard part on the bottom of the horse’s hoof known as?

Answer 5

Sole

Question 6

How would you classify the following epithelium? Long column-shaped cells in a single layer

Answer 6

Simple columnar epithelium

Question 7

Goblet cells produce:

Answer 7

mucus

Question 8

How would you classify the following epithelium? Short, square-shaped cells in a single layer

Answer 8

Simple cuboidal epithelium

Question 9

Where would you be most likely to find stratified squamous epithelium?

Answer 9

lining the inside of the mouth

Question 10

Where would you most likely find keratinized squamous epithelium?

Answer 10

on the skin

Question 11

Where would you be most likely to find pseudostratified ciliated columnar epithelium?

Answer 11

in the trachea of the respiratory tract

Question 12

Which dark, cornified structures are found at the level of the equine fetlock?

Answer 12

ergots

Question 13

The innermost layer of a hair is the

Answer 13

medulla

Question 14

Where would you most likely to find simple squamous epithelium?

Answer 14

in the areas of the lungs where gas is exchanged

Question 15

In a ruminant, which of the following digits are weight bearing?

Answer 15

3 & 4

Question 16

What is the triangular shaped soft part of the bottom of the hoof called?

Answer 16

frog

Question 17

How would you classify the following epithelium? Multiple layers with thin flat cells on top

Answer 17

stratified squamous epithelium

Question 18

What is the Pacinian corpuscle and where is it found?

Answer 18

Touch receptor/hypodermis

Question 19

What would you call the groove that lies in between the sole of the hoof and the frog

Answer 19

Collateral sulcus

Question 20

The basal surface of an epithelial cell

Answer 20

faces the underlying connective tissue

Question 21

The portion of a serous membrane that lines the organ is:

Answer 21

visceral layer

Question 22

Another name for a hoofed animal is an

Answer 22

ungulate

Question 23

Equine hoof growth originates from where?

Answer 23

Coronary Band

Question 24

Chestnuts are found on what surface of the leg?

Answer 24

medial

Question 25

Which phase of hair growth is the resting phase, in which no growth occurs

Answer 25

telogen phase

Question 26

How would you classify the following epithelium? Single layer of flat, thin cells

Answer 26

Simple squamous epithelium

Question 27

How would you classify the following epithelium? Tall, column-like cells that have nuclei at different levels and have tiny hairs on the surface

Answer 27

pseudostratified ciliated columnar epithelium

Question 28

In which species of animal does sebum eventually become lanolin

Answer 28

ovine

Question 29

Another name for the integument is

Answer 29

cutaneous membrane

Question 30

Which layer are you least likely to find in the epidermis of a furred animal

Answer 30

stratum lucidum

Question 31

What is the name of the epithelial tissue lining blood vessels?

Answer 31

endothelium

Question 32

The ______ anchors an epithelium cell to its underlying connective tissue

Answer 32

basement membrane

Question 33

The thinnest epithelial cells are fragile and are found lining surfaces involved in the passage of liquids or gasses. They are classified as

Answer 33

simple squamous

Question 34

When given a picture of a muscle cells under a microscope. What characterizes the following muscle type?

Answer 34

Involuntary, striated

Question 35

What is the most superficial layer of the epidermis?

Answer 35

Stratum corneum

Question 36

Which layer of the epidermis contains melanocytes ?

Answer 36

stratum basale

Question 37

Which layer of the epidermis contains actively dividing cells?

Answer 37

stratum germinativum

Question 38

Tendons are made of what type of connective tisse?

Answer 38

dense regular connective tissue

Question 39

What is the purpose of cilia?

Answer 39

coordinated movement of particles on the luminal surface

Question 40

Meisner’s corpuscles are found in what layer of skin?

Answer 40

papillary dermis

Question 41

The apical surface of an epithelial cell

Answer 41

faces the lumen of the body cavity

Question 42

An osteoblast will produce the fibers and ground substance for

Answer 42

bone

Question 43

the pigment found in skin is produced by

Answer 43

melanocytes

Question 44

The urinary bladder is partially lined by __________, giving it the ability to expand and contract as needed

Answer 44

Transitional epithelium

Question 45

Because it is a site of heat production, this type of connective tissue is found in animals that hibernate during the cold winter months.

Answer 45

brown adipose tissue

Question 46

The most abundant tissue type by weight in the body is

Answer 46

connective tissue

Question 47

Which surface of an epithelia cell lies closest to its blood supply

Answer 47

basal surface

Question 48

What are Langerhans cells and where are they found

Answer 48

Specific macrophage/epidermis

Question 49

What is the purpose of microvilli?

Answer 49

increase surface area for absorption

Question 50

During which phase of hair growth are hairs actively growing?

Answer 50

Anagen phase

Question 51

Sheep have all of the following except

Answer 51

Axillary cutaneous pouch