07 - Normal Estrous cycle

Question 1

(anestrus)

1. what is it?
2. levels of

progesterone?

FSH?

3. normal duration?

Answer 1

1. period between estrus cycles
2. low

high

3. 4-18 months

Question 2

(proestrus)

1. characterized by what?
2. levels of

progesterone

estrogen

3. typically lasts how long?

Answer 2

1. bloody vaginal discharge and vulvar swelling
2. low

rising

3. 3-14 days

Question 3

(estrus)

1. starts when what occurs?
2. ovulation occurs as levels of what start to increase?

resulting in release of what?

3. the vulva becomes soft, and there is clear (or slightly bloody) discharge
4. lasts about how long?

Answer 3

1. ovulation (female allows breeding)
2. progesterone level

LH release

4. 6 days

Question 4

(diesturs)

1. lasts how long if not pregnant?

if pregnant?

2. what happens to progesterone levels?
3. vaginal smear shows a change to parabasalr and intermediate cells, with the appearance of white blood cells

Answer 4

1. 2 to 4 months

8 weeks

2. gradually decrease