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Mare's Reproductive Cycle Trivia Quiz

How well do you know the workings of a mare's cycle? Simply give me the word missing from each sentence.

A multiple-choice quiz by Buzby. Estimated time: 6 mins.

Author
Buzby

Time
6 mins

Type
Multiple Choice

Quiz #
149,088

Updated
Dec 03 21

# Qns
10

Difficulty
Difficult

Avg Score
4 / 10

Plays
3927

Last 3 plays: Guest 207 (7/10), Guest 207 (7/10), Guest 169 (6/10).

One at a Time - Single Page - Timed Game

Question 1 of 10

1. During winter when a mare is not cycling, she is in ___________. Hint

Dioestrus

None of these

Oestrus

Anoestrus

NEXT>

Question 2 of 10

2. The main hormone that makes a mare show she is in season is ________. Hint

Progesterone

Follicle Stimulating Hormone

Testosterone

Oestrogen/estrogen

NEXT>

Question 3 of 10

3. The period between seasons is called _________. Hint

Anoestrus

Dioestrus

Oestrus

None of these

NEXT>

Question 4 of 10

4. A mare is stimulated to begin cycling in spring when the ________ at the base of the brain senses increasing daylight. Hint

Septum

Tectum

Hypothalamus

Thalamus

NEXT>

Question 5 of 10

5. When follicles in the mare's ovaries reach at least 2cm, the anterior
_______ gland secretes luteinizing hormone, causing follicles to erupt and release the ovum within.

Answer: (One Word .. starts with P !)

NEXT>

Question 6 of 10

6. Once ruptured, the follicle forms an active corpus luteum and becomes responsible for secretion of __________. Hint

Neither of these

Oestrogen/estrogen

Progesterone

Both of these

NEXT>

Question 7 of 10

7. __________ from the ______
______ keeps the uterine horns in a receptive state so that if sperm fertilises the egg, the embryo will have a suitable home to grow and develop. Hint

Oestrogen, Luteinizing Hormone

Oestrogen, Corpus Luteum

Progesterone, Corpus Luteum

Progesterone, Luteinizing Hormone

NEXT>

Question 8 of 10

8. After approximately 14 days, if there is no embryo, the uterus will release _________. Hint

Oestrogen

Prostaglandin

Progesterone

Follicle Stimulating Hormone

NEXT>

Question 9 of 10

9. The uterus takes over the production of hormones approximately ___days into pregnancy. Hint

250

200

150

NEXT>

Question 10 of 10

10. The main hormone that makes a mare show she is in dioestrus is _______. Hint

Oestrogen

Prostoglandin

Follicle Stimulating Hormone

Progesterone

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Most Recent Scores

Dec 05 2024 : Guest 207: 7/10
Dec 04 2024 : Guest 207: 7/10
Nov 29 2024 : Guest 169: 6/10
Nov 25 2024 : Guest 212: 4/10
Nov 05 2024 : Guest 96: 5/10

Score Distribution

Quiz Answer Key and Fun Facts

1. During winter when a mare is not cycling, she is in ___________.

Answer: Anoestrus

The mare is stimulated into cycling in spring when daylight hours increase.

2. The main hormone that makes a mare show she is in season is ________.

Answer: Oestrogen/estrogen

Follicles in the ovaries release oestrogen causing the uterus to prepare for a fertilised egg. The mare is then in oestrus/estrus(season) and will be receptive to a stallion.

3. The period between seasons is called _________.

Answer: Dioestrus

Dioestrus lasts an average of 18 days.

4. A mare is stimulated to begin cycling in spring when the ________ at the base of the brain senses increasing daylight.

Answer: Hypothalamus

The hypothalmus senses the increasing daylight. Gonadotrophic releasing hormone then enters the portal system between the hypothalmus and the pituitary gland, causing the front portion of the gland to release follicle stimulating hormone (FSH). FSH causes immature follicles in the mare's ovaries to grow.

5. When follicles in the mare's ovaries reach at least 2cm, the anterior _______ gland secretes luteinizing hormone, causing follicles to erupt and release the ovum within.

Answer: Pituitary

This is known as ovulation.

6. Once ruptured, the follicle forms an active corpus luteum and becomes responsible for secretion of __________.

Answer: Progesterone

Under the influence of progesterone, the mare will reject a stallion. She is now in dioestrus.

7. __________ from the ______ ______ keeps the uterine horns in a receptive state so that if sperm fertilises the egg, the embryo will have a suitable home to grow and develop.

Answer: Progesterone, Corpus Luteum

This receptive state lasts about 14 days.

8. After approximately 14 days, if there is no embryo, the uterus will release _________.

Answer: Prostaglandin

Prostaglandin will end the corpus luteum and prevent further production of progesterone.

9. The uterus takes over the production of hormones approximately ___days into pregnancy.

Answer: 150

If an embryo has been implanted, the corpus luteum will continue production of progesterone and maintain the pregnancy.

10. The main hormone that makes a mare show she is in dioestrus is _______.

Answer: Progesterone

Oestrogen is the main hormone during oestrus. Progesterone is the main hormone during dioestrus, and during anoestrus there is no main hormone because the mare is not cycling.

Source: Author Buzby

This quiz was reviewed by FunTrivia editor crisw before going online.
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