Coat and Skin Disorders Flashcards

1
Q

where is the dermis thinnest

A

muzzle/lips
groin
under front legs

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2
Q

where are ergots located

A

back of the fetlocks

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3
Q

what substance arises from brushing and waterproofs the coat

A

sebum

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4
Q

what are guard hairs

A

longer hairs on a horses coat that stick out when cold

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5
Q

what coat aberrations suggest fungal infection

A

mats
clumps
disordered appearance

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6
Q

what is hirsutism

A

excessive growth of hair, generally seen in cusshings

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7
Q

what determines coat color

A

melanin granules

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8
Q

T/F tack placed on too tightly can cause permanent hair discoloration due to damage to the melanin granules

A

TRUE

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9
Q

under what temp should you not bathe horses

A

60 F

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10
Q

what is caused by a buildup of smegma in the urethral diverticulum of the sheath

A

a painful bean

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11
Q

how often should the sheath be cleaned

A

every 6 months

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12
Q

what type of horse is more prone to smegma build up and skin cancer on the sheath

A

males with white skin

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13
Q

what should be used to clean the sheath

A

ivory soap and (baby bath) warm water

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14
Q

T/F iodine and betadine are great tools for cleaning the sheath

A

FALSE. they can be extremely irritating

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15
Q

what breed generally pulls the mane and tail

A

english, halter

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16
Q

what is pulling the mane/tail

A

thinning out the hair for the sake of appearance

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17
Q

what is the most common disease spread by tack

A

ringworm

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18
Q

where in Queensland itch most commonly seen on the body

A

neck and shoulder area

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19
Q

what is ventral midline dermatitis caused by

A

migrating phase of hairlike worm transmitted by gnats

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20
Q

symptoms of ventral midline dermatitis

A

-moist, crusty, shallow, ulcerations
-hair loss

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21
Q

what is the typical cause of hives

A

allergens in feed

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22
Q

symptoms of irritant contact dermatitis

A

red bumps
crusting
hair loss

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23
Q

difference between irritant vs allergic contact dermatitis

A

allergic requires repeated/continuous contact with allergen

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24
Q

what causes mange

A

mites

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25
where is hair loss generally seen with mange
poll mane tail legs
26
what hair disorder is common with mares about to enter estrus
patchy hair loss
27
when does ringworm typically appear
fall and winter
28
what bodily location is ringworm most common
saddle and girth area
29
what common condition can seborrhea look like
dandruff possibly ringworm
30
what causes rain scald/rain rot
fungal infection from wet weather
31
how to treat rain scald
-get your horse out of the wet area/into the sun -strong antibiotics in extreme cases
32
what is tail pyoderma
abscesses or hair loss on tail from self mutilation
33
what are often underlying causes of tail pyoderma
tail mites pinworms
34
symptoms of selenium poisoning
loss of hair from mane and tail hoof cracks
35
T/F lymphomas often resolve on their own within a few weeks
TRUE
36
how to tell lymphoma from hives
they are firmer and more moveable
37
what could one or more abscesses beneath the jaw indicate
strangles
38
what is the common name for cellulitis
big leg syndrome
39
underlying causes that can cause abscesses
itchy skin disorder foreign body skin wound
40
what is folliculitis(summer rash)
hair/pore infection occurring on the saddle area in hot weather
41
what is ulcerative lymphangitis
swollen appendages with abscesses along lymph channels. the abscesses open and drain pus
42
what causes malignant edema
dirty wounds on legs and face
43
symptoms of malignant edema
hot, painful swelling toxic form of gas gangrene
44
what is poll evil
-the Deep-seatedskin infection at the poll -formation of one or more sinus draining tracts to
45
what is fistulous withers
same as poll evil but at the withers
46
what causes sporotrichosis
fungus
47
characteristics of sporotrichosis
draining ulcer at site of puncture wound(typically on leg)
48
how to treat scratches
oral antibiotic
49
common name for habronema
summer sores
50
what causes summer sores
larvae of stomach worms deposited in open wounds
51
when to suspect summer sores
when a clean wound becomes enlarged and covered in bleeding reddish-yellow tissue
52
how to treat summer sores
dewormer topical antibiotic
53
what is the most common tumor in horses
sarcoid
54
T/F there is currently no treatment for sarcoids, but they are usually small and harmless
TRUE
55
where are cattle grubs most commonly found
withers neck back
56
what causes cattle grubs
larvae beneath the skin
57
what horses are more susceptible to squamous cell carcinoma
older light colored horses, especially in hairless areas
58
what is squamous cell carcinoma
hard, flat ulcerating growth, usually on face and genitalia
59
what type of horse is melanoma typically found on
old gray horses
60
what is melanoma? where is it most commonly found?
black nodular growht, typically seen on genitalia, eyes, mouth, and tail
61
what is phycomycosis
deep-seated fungal infection at the site of a cut
62
what does phycomycosis look like
fast growing bulbous mass of grayish pink tissue with discharge through numerous sinus tracts