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Clin Lab > Veterinary Vaginal Cytology / Estrus Cycle > Flashcards

Veterinary Vaginal Cytology / Estrus Cycle Flashcards

1
Q

What stage of estrus is this?

A

Anestrus

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2
Q

What stage of estrus is this?

A

Diestrus

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3
Q

What stage of estrus is this?

A

Estrus

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4
Q

What type of cells are these?

A

Intermediate

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5
Q

What type of cells are these?

A

Parabasal cells

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6
Q

What stage of estrus is this?

A

Proestrus

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7
Q

What cells are non-cornified?

A

Parabasal and intermediate

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8
Q

What cells are cornified?

A

Superficial cells

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9
Q

How long does proestrus last?

A

4-13 days

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10
Q

What is the optimal time for breeding and the average duration of this stage?

A

Estrus- lasts about 9 days

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11
Q

Known as the last stage of heat and can last 2-3 months

A

Diestrus

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12
Q

The period between heats usually lasting 4 1/2 months

A

Anestrus

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13
Q

Estrogen rises throughout ______ and peaks just before _____

A

Rises throughout proestrus and peaks just before estrus

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14
Q

What is evaluated in semen evaluation?

A

Headshape

Midpiece and tail

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15
Q

What classifies high fertility in sperm?

A

80% motile sperm

Normal sperm maintain motility for several hours and are relatively resistant to cooling

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16
Q

What classifies low fertility in sperm?

A

Less than 70% motility in sperm

Rapid loss of motility indicates infertility

17
Q

How is the concentration of semen observed?

A

Hematocytometer or dilution method

18
Q

What cells are seen in early proestrus?

A

High numbers of erythrocytes and parabasal cells

19
Q

What cells are seen in late proestrus?

A

Erythrocytes gradually decrease

Intermediate cells with pyknotic nuclei

20
Q

What cells are seen in estrus?

A

Squamous epithelial cells cornified and anuclear

21
Q

What cells are seen in diestrus?

A

Noncornified squamous epi cells

Cytological debris

Neutrophils

Erythrocytes absent

22
Q

What cells are seen in anestrus?

A

Parabasal and intermediate cells dominate

May contain some neutrophils and erythrocytes

23
Q

List what each cell seen is

A

A. Parabasal

B. Small intermediate

C. Large intermediate

D. Superficical cell with pyknotic nucleus

E. Cornified; Anuclear superficial cell

Clin Lab (7 decks)

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