Biology - hormones & menstrual cycle Flashcards
What are hormones?
They are released chemicals from glands in your endocrine system
What is your endocrine system?
Consists of various glands all around your body secreting chemicals that effect the conditions of your body
What is adrenaline?
It is a rapid response from a hormone in your body which prepares of for fight or flight (fight or run)
What is insulin?
A rapid response hormone that controls the glucose in our blood
What does the pituitary gland do?
1) controls growth in children (mentally and physically) 2) stimulates thyroid gland so thyroxin controls metabolism 3) stimulates ovaries for oestrogen 4) stimulates testes for sperm and testosterone
What does the thyroid gland do?
Controls the bodies metabolic rate
What does the pancreas do?
Controls levels of glucose within the blood
What does the adrenal gland do?
Prepares bodies for stressful situations by realising adrenaline
What do ovaries do?
Helps develop a females sexual characteristics and is essential to the menstrual cycle
What do the testes do?
Help develop the male sexual characteristics and help produce sperm as well
What is the role of the follicle stimulating hormone?
The FSH is a hormone which stimulates ovaries in order to make the oestrogen
FSH - what is it, where is it produced and what are its effects?
FSH is known as follicle stimulating hormone which is produced in the pituitary glands. The effects of it are that it causes the eggs to mature pre fertilisation and stimulates the ovary to produce oestrogen
LH - what is it, where is it produced and what are its effects?
LH stands for luteinising hormone which is produced at the the pituitary gland. Its effects are that it triggers ovulation.
Oestrogen - what is it, where is it produced and what are its effects?
It is produced in the ovaries and its role is that it causes the lining of the uterus to develop and also inhabits the release of FSH and simulates the release of LH.
Progesterone - what is it, where is it produced and what are its effects?
It is produced by empty follicle after ovulation. Its effects are that it maintains the lining of the uterus during the menstrual cycle and also inhibits the release of both FSH and LH.
