Chapter 06: Integumentary System
Colville: Clinical Anatomy and Physiology for Veterinary Technicians, 3rd Edition
MULTIPLE CHOICE
1. The majority of cells found in the skin are
a.
keratinocytes.
b.
Langerhans cells.
c.
melanocytes.
d.
Merkel cells.
2. The pigment found in skin is produced by
a.
keratinocytes.
b.
Langerhans cells.
c.
melanocytes.
d.
Merkel cells.
3. The cells thought to aid in the sense of touch are
a.
keratinocytes.
b.
Langerhans cells.
c.
melanocytes.
d.
Merkel cells.
4. The macrophages of the epidermis are the
a.
keratinocytes.
b.
Langerhans cells.
c.
melanocytes.
d.
Merkel cells.
5. One of the most common skin tumors in dogs over the age of 5 is
a.
basal cell tumor.
b.
malignant melanoma.
c.
Merkel cell carcinoma.
d.
squamous cell carcinoma.
6. The nose of a white cat is especially susceptible to
a.
basal cell tumor.
b.
malignant melanoma.
c.
Merkel cell carcinoma.
d.
squamous cell carcinoma.
7. The old gray mare is especially susceptible to
a.
basal cell tumor.
b.
malignant melanoma.
c.
Merkel cell carcinoma.
d.
squamous cell carcinoma.
8. One of the most common benign tumors of cats is
a.
basal cell tumor.
b.
malignant melanoma.
c.
Merkel cell carcinoma.
d.
squamous cell carcinoma.
9. The most common site for malignant melanoma in dogs and cats is the
a.
anal region.
b.
ear canal.
c.
inguinal region.
d.
oral cavity.
10. Which layer of epidermis is most actively involved in replacing exfoliated skin cells?
a.
basal layer
b.
clear layer
c.
granular layer
d.
spiny layer
11. The thickest layer of the epidermis is the
a.
clear layer.
b.
granular layer.
c.
horny layer.
d.
spiny layer.
12. Tylotrich hairs are important in the perception of
a.
heat.
b.
light.
c.
pain.
d.
touch.
13. Meissner’s corpuscle is important in the perception of
a.
heat.
b.
hemorrhage.
c.
light.
d.
touch.
14. Pacinian corpuscles are important in the perception of
a.
heat.
b.
light.
c.
pain.
d.
touch.
15. Which layer of skin allows it to move freely over underlying bone and muscle without
tearing?
a.
dermis
b.
epidermis
c.
hyperdermis
d.
hypodermis
16. On a footpad, which layer of skin is the thickest?
a.
stratum corneum
b.
stratum germinativum
c.
stratum granulosum
d.
stratum lucidum
17. In which species of animal would you find a planum nasolabiale?
a.
canine
b.
equine
c.
feline
d.
porcine
18. Which dark, horny structures are found buried in the long, caudal hairs of equine fetlocks?
a.
chestnuts
b.
dewclaws
c.
ergots
d.
metacarpal pads
19. Infraorbital, interdigital, and inguinal pouches are found in what species of animal?
a.
bovine
b.
caprine
c.
equine
d.
ovine
20. The part of a hair that is buried within skin is the
a.
follicle.
b.
papilla.
c.
root.
d.
shaft.
21. The invagination of epidermis in which a hair is anchored is the
a.
follicle.
b.
matrix.
c.
papilla.
d.
root.
22. How many hairs are found in an average hair follicle?
a.
1
b.
10
c.
15
d.
3
23. In a compound follicle a primary hair is also known as a __ hair.
a.
guard
b.
satellite
c.
sinus
d.
tactile
24. Whiskers are also known as __ hairs.
a.
guard
b.
satellite
c.
tactile
d.
wool-type
25. The outermost layer of a hair is the
a.
cortex.
b.
cuticle.
c.
medulla.
d.
melanin.
26. As an animal ages and its hair turns white, the medulla becomes filled with
a.
air.
b.
fat.
c.
melanin.
d.
water.
27. The implantation angle of a hair is increased when the
a.
arrector pili muscle contracts.
b.
arrector pili muscle relaxes.
c.
erector pili muscle contracts.
d.
erector pili muscle relaxes.
28. The white, semiliquid mixture released by sebaceous glands is called
a.
sebolith.
b.
sebum.
c.
semen.
d.
serum.
29. Another name for a blackhead is
a.
comedone.
b.
commissure.
c.
condom.
d.
corium.
30. Which species of animal produces enough sweat to turn into a white froth?
a.
bovine
b.
canine
c.
equine
d.
porcine
31. In which species of animal does sebum eventually become lanolin?
a.
bovine
b.
caprine
c.
feline
d.
ovine
32. A sudoriferous gland is also known as a/an
a.
anal gland.
b.
sebaceous gland.
c.
sweat gland.
d.
tail gland.
33. Which animals have tail glands that help them identify individual animals?
a.
cats and goats
b.
dogs and cats
c.
goats and sheep
d.
sheep and dogs
34. The tail gland is located on the __ surface of the tail.
a.
caudal
b.
dorsal
c.
lateral
d.
ventral
35. Where would you look for anal sacs in a cat?
a.
at 1 and 7 o’clock positions around the anus
b.
at 12 and 6 o’clock positions around the anus
c.
at 5 and 11 o’clock positions around the anus
d.
at 5 and 7 o’clock positions around the anus
36. Which one of the following animals can retract its claws.
a.
cat
b.
dog
c.
polar bear
d.
raccoon
37. Another name for a hoofed animal is an
a.
uncinate.
b.
underate.
c.
undulate.
d.
ungulate.
38. The sensitive tissue of both claws and hooves is the
a.
corium.
b.
frog.
c.
periosteum.
d.
sole.
39. Hooves grow from the
a.
coronary band.
b.
coronary groove.
c.
periople.
d.
white line.
40. The lateral aspects of an equine hoof wall are called
a.
heels.
b.
quarters.
c.
soles.
d.
toes.
41. The junction of the sole and hoof wall in an equine hoof is called the
a.
black line.
b.
red line.
c.
white line.
d.
yellow line.
42. Horns emerge from the horn processes of the __ bones.
a.
frontal
b.
maxillary
c.
occipital
d.
temporal
43. Horns are bound to the horn process by
a.
areolar connective tissue.
b.
muscles.
c.
periosteum.
d.
tendons.
44. Horns are composed of
a.
bone.
b.
dense, irregular connective tissue.
c.
dense, regular connective tissue.
d.
keratin.
45. Antlers are composed of
a.
bone.
b.
cartilage.
c.
hair.
d.
keratin.