U.2 K.A-2 Hormone Control Of Reproduction Flashcards
Name the glands that hormone are produced from in females
Endocrine glands
Which hormone is produced by the hypothalamus around puberty time which kick-starts the production of sperm
Released hormone
Where does releaser hormone travel to from the hypothalamus
Pituitary gland
Name the two hormones produced by the pituitary gland in males
FSH and ICSH
When FSH is released from the pituitary gland in males, where does it travel to
Seminiferous tubules in the testes
What do the seminiferous tubules make after being stimulated by FSH
Sperm
What does ICSH released from the pituitary gland do
Stimulates the interstitial cells to produce testosterone
What two jobs does testosterone do
Stimulates the seminiferous tubules to make sperm and it also activates the accessory glands
When there is a build-up of testosterone in males what happens
Testosterone inhibits the production of FSH and ICSH from the pituitary gland
When testosterone levels falls, the FSH and ICSH production is resumed following a period of being inhibited. What name is given to this type of regulation
Negative feedback
Name the hormone released from the hypothalamus in females during puberty that kick start the menstrual cycle
Releaser hormone
Name the two hormones that are released from the pituitary gland in females
FSH and LH
Name the hormone released by the pituitary gland that cause the development of an egg inside the follicle
FSH
What ovarian hormone is released by the ovary in response to an egg developing in the follicle
Oestrogen
What effect does oestrogen have on the endometrium
Causes proliferation
As oestrogen levels build up and, it sends a message back to the pituitary gland to release which hormone
LH
What two events does LH being released from the pituitary gland cause
Ovulation and formation of corpus luteum from the follicle
Name the hormone released by the corpus luteum as well as oestrogen
Progesterone
Which two hormones are classed as ovarian hormones
Oestrogen and progesterone
Progesterone travels to the endrometrium and causes what to happen
Vascularisation of the endometrium
As progesterone builds up an inhibitory message is sent back to the pituitary gland tells it to inhibit the production of which two hormones
FSH and LH
If FSH and LH levels drop what other two ovarian hormone levels will drop
Oestrogen and progesterone
What structure will break down if oestrogen and progesterone are not there to maintain it
The endrometrium resulting in a period
If fertilisation does occur, which hormone will be secreted by the embryo that will maintain the corpus luteum and allow it to continue to secrete, oestrogen and progesterone
HCG (human chorionic gonadotropin)
Name the two phases of the menstrual cycle
Follicular phase and Luteal phase
What name is given to the process of the release of an egg from the follicle
Ovulation
What events are described in the follicular phase of the menstrual cycle
All the events up to ovulation
What events are described in the luteal phase of the menstrual cycle
All the events after ovulation up to the onset of a period