Reproductive Organs, Gametes And Fertilisation Flashcards
(19 cards)
What do seminiferous tubules produce?
Sperm
What do the interstitial cells produce?
Testosterone
What does testosterone do?
Testosterone stimulates sperm production, activates the seminal vesicles and and prostate gland to produce secretions.
Role of prostate gland and seminal vesicles?
To secrete fluid to maintain the mobility and viability of sperm.
Which accessory glands secrete a liquid rich in hormone-like chemicals?
The seminal vesicles
Name the structure that surrounds the egg in an ovary?
A follicle
What is ovulation?
Ovulation is when a mature ovum is released, fr the ovary, into the oviduct.
What does the follicle that surround each ovum secrete?
The female sex hormone, Oestrogen.
After ovulation what does the follicle secrete?
The sex hormone Progesterone as well as Oestrogen.
What does FSH promote in males?
Sperm Production
What does ICSH stimulate?
The production of Testosterone.
What happens when Testosterone reaches a certain level?
It inhibits FSH and ICSH secretion
What are hormones?
Chemical messengers produces by the Endocrine Glands.
In reproduction, what do hormones control?
The onset of puberty
Sperm production
The menstrual cycle
What does FSH stimulate in females?
The ovary to secrete the female sex hormone Oestrogen
What does LH do?
LH triggers ovulation and also brings about the development of the corpus luteum from the follicle
What does the corpus luteum secrete?
Progesterone
What does high levels of oestrogen do to the cells lining the cervix?
Stimulates them to secrete a watery mucus
What are gametes produced from?
gametes are produced from germline cells
