Skin, Hair and Associated Glands Flashcards

1
Q

Functions Of Skin?

A

Protection
Immunity
Sensory
Secretion
Production
Storage
Thermoregulation
Communication

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2
Q

pH of dog and cats skin

A

Canine pH- 7.4
feline pH- 6.4

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3
Q

Vitamin D helps to absorb what mineral? and in what organ?

A

Calcium Ca+
absorbed in the instestines

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4
Q

Structure Of Skin
Made up of what 3 layers

A
  • Epidermis
  • Dermis
  • Hypodermis/subcutaneous
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5
Q

Thickness of skin in a dog

A
  • Dogs 0.5 – 5 mm
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6
Q

Thickness of skin in a cat

A
  • Cats 0.4 – 2 mm
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7
Q

Is the Epidermis avascular?

A

Yes

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8
Q

What type of tissue is the epidermis layer?

A

Stratified squamous epithelial tissue

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9
Q

How many cells thick is the stratified squamous epithelial tissue in the epidermis?

A
  • 4-5 cells thick
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10
Q

Layers of the epidermis?
From least superficial

A
  • Stratum basale/germinativum layer.
    -Stratum spinosum
    -Stratum granulosum
  • Stratum lucidum
  • Stratum corneum
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11
Q

How long does it take for cells to migrate from stratum Basale > stratum granulosum

A

Approx 22 days

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12
Q

Dermis contains?

A
  • Blood vessels
  • Lymph vessels
  • Nerves
  • Glands
  • Hair follicles
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13
Q

Dermis tissue type?

A

Dense connective tissue

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14
Q

What is the tissue is the Hypodermis/Subcuticular Layer of skin?

A

Loose connective tissue
Fat cells
Elastic fibres

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15
Q

The mechanoreceptors ‘Pacinian Corpuscles’ found in the skin detects?

A

pressure and vibration.

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16
Q

The mechanoreceptors ‘Ruffini Corpuscles’ found in the skin has what function?

A

velocity of skin movement/touch

17
Q

Merkel cells?

A

Sense steady pressure and tactile stimuli
skin stretch

18
Q

High threshold mechanoreceptors

A

respond to painful stimuli

19
Q

Type of tissue footpads are made up of?

A

Stratum corneum is thickened,
heavily keratinised

20
Q
A

Coronary
border

21
Q

List the different Sebaceous glands

A
  • Tail glands
  • Circumanal
  • Anal sac
  • Circumoral
  • Ceruminous
  • Meibomian
22
Q

Whats an example of a Sudoriferous gland

A

mammary gland

23
Q

what does Alveolar glands
secrete.

A

Secrete a waxy/oily Sebum
* Antiseptic properties
* Contains pheromones

24
Q

Where are Supracaudal Glands found

A

Dorsal aspect of tail

25
Q

Anal Sac Glands location

A

8 and 4 O’clock

26
Q

Perioral Glands location

A

Lips of cats

27
Q

What does Ceruminous Glands secrete

A

Ear wax

28
Q

what are Meibomian / Tarsal Glands?

A

Open at mucocutaneous
junction of eyelids
Secrete tears.

29
Q

What are Sudoriferous Glands

A

Sweat glands
* found in foot pads & nose *

30
Q

what shape are Sudoriferous Glands

A

Coiled

31
Q

What type of gland is the mammary glands

A

Highly modified
sudoriferous/sweat gland

32
Q

How many pairs of mammary glands does a cat have

A

4 pairs

33
Q

How many pairs of mammary glands does a dog have

A

5 pairs

34
Q

3 types of hairs

A

Guard / primary
Wool / secondary
Vibrissae / tactile

35
Q

What are Lanugo hairs

A

Wool hairs

36
Q

Where are Vibrissae / Tactile Hairs found?

A

Upper lip
eyelashes
Eyebrows
Cheeks and chin
Carpus of the cat