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6. What happens to FSH levels after ovulation?
7. What is produced at first oestrus (i.e. puberty onset)?
- Secondary oocyte
- Secondary oocyte and polar body
- Primary oocyte and polar body
- Ovum
8. What does LH do?
- Triggers ovulation and corpus luteum development
- Stimulates follicular growth in ovaries
9. What do low-frequency GnRH pulses do?
- Stimulate release of FSH
- Stimulate release of LH
10. What effect does Beta Endorphin have?
- Promotes GnRH neurone activity
- Promotes LH
- Inhibits LH
- Inhibits FSH
11. What is FSH highly sensitive to?
- Negative feedback of oestradiol
- Positive feedback of oestradiol
- Negative feedback of GnRH
- Positive feedback of GnRH
12. What does inhibin do?
- Inhibits GnRH
- Inhibits FSH
- Inhibits LH
- Inhibits oestradiol
13. What does a regressed corpus luteum form?
- Tertiary follicle
- Corpus albicans
- Corpus haemorragicans
14. What effect do GABAnergic neurones have on GnRH neurones?
- Causes retraction of their associated Glial cell
- Inhibits them
- Promotes their activity
15. What effect does dopamine have on GnRH neurones?
- Inhibits them
- Stimulates them
16. What state are gametes arrested in at birth of the female animal?
- Oogonium
- Primary oocyte
- Ovum
- Secondary oocyte
17. What does FSH do?
- Stimulates follicular growth in ovaries
- Stimulates growth of ovaries
- Stimulates follicular lysis in ovaries
- Produces corpus luteum in ovaries
18. What is added in glycosylation of the Beta subunits of gonadotrophins?
- Carbohydrates and sialic acid
- Carbohydrates and glutamine
- Carbohydrates
- Sulphide bridges and cabohydrates
19. What effect does progesterone have on GnRH release?
- Promotes pulsatile secretion only
- Inhibits it
- Promotes it
- Promotes cyclic secretion only
20. What stimulates the production of prostaglandin F2a?
- Oxytocin from corpus luteum
- FSH from anterior pituitary
- Progesterone from corpus luteum
- GnRH from hypothalamus
