Controlling Fertility Mindmap
- Created by: xlspxth
- Created on: 03-06-20 11:03
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- Increasing fertility
- Hormones
- Some women have levels of FSH that are too low to cause their eggs to mature
- PROS: it helps a lot of women get pregnant
- The hormones FSH and LH can be given to women in a fertility drug to stimulate ovulation
- CON: it doesn't always work - which is expensive. However it can sometimes bring out more than one child
- Some women have levels of FSH that are too low to cause their eggs to mature
- IVF
- involves collecting eggs from the women's ovaries and fertilising them in a lab using the man's sperm
- treatment can also involve a technique called intra-cytoplasmic sperm injection, where the sperm is injected directly into an egg. It's useful if the man has a very low sperm count
- The fertilised eggs are grown into embryos in a labatory incubator.
- Once the embryos are tiny balls of cells, one or two of them are transferred to the women's uterus to improve the chance of pregnancy
- FSH and LH are given before egg collection to stimulate several eggs to mature (so more then one egg can be collected)
- Once the embryos are tiny balls of cells, one or two of them are transferred to the women's uterus to improve the chance of pregnancy
- The fertilised eggs are grown into embryos in a labatory incubator.
- People against IVF
- The process of IVF often results in unused embryos that are eventually destroyed. Because of this, some people think its unethical because each embryo is a potential human life
- The genetic testing of embryos before implantation also raises ethical issues as some people think it could lead to the selection of preferred characteristic, such as gender or eye colour.
- Adrenaline
- 'Fight or Flight'
- Adrenaline is released in response to stressful or scary situations - your brain detects fear or stress and sends nervous impulses to the adrenal glands, which respond by secreting adrenaline.
- Is a hormone released by the adrenal glands, which are just above the kidneys
- It gets the body ready for 'fight or flight' by triggering mechanisms that increase the supply of oxygen and glucose to cells in the brain and muscles. For example, adrenaline increases the heart rate.
- Negative feedback
- Your body can control the levels of hormones (and other substances) in the blood using negative feedback systems.
- When the body detects that the level of a substance has gone above or below the normal level, it triggers a response to bring the level back to normal again.
- Your body can control the levels of hormones (and other substances) in the blood using negative feedback systems.
- 'Fight or Flight'
- Hormones
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