1605587
Beschreibung
Karteikarten von Emily Woods, aktualisiert more than 1 year ago
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Erstellt von Emily Woods
vor etwa 10 Jahre
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| Frage | Antworten |
| Roles | -Produce female gametes, Ovum (Ova as plural) -Receive male gametes (spermatozoa) for fertilisation -Provides 'site' for fertilisation & for development of zygote |
| Zygote | Cell that forms when a sperm fertilises an egg |
| Ectopic pregnancy | When fertilised ovum is implanted in fallopian tube instead of travelling through the tube & implanting in the uterus |
| Female gametes (Ova) | -Larger than male gametes (sperm) -Doesn't move, but has large food store -Produced once monthly by the two ovaries -Ovum travels along oviduct/Fallopian tube towards the uterus |
| Fertilisation | -Ovum travels along oviduct/Fallopian tube towards the uterus -Ovum fertilises into a zygote whilst in oviduct/fallopian tube & implants in uterus -Zygote grows & develops into baby in uterus |
| Hormone | -A chemical messenger produced by glands to alter the activity of one or more specific target organs |
| Behaviour (during puberty) | Girls become more maternal (motherly) & attracted to boys |
| Pituitary gland | -Produces hormones which effect other endocrine organs -One pituitary hormone stimulates ovaries to produce oestrogen |
| Endocrine | Glands which secrete hormones or other products directly into the blood |
| Oestrogen | -Circulates in blood & stimulates secondary sex characteristics (characteristics that appear during puberty) -Stops FSH being produced so that only one egg matures in a cycle -Stimulates the pituitary gland to release the hormone LH |
| Secondary sex characteristics | -Breasts develop & increase in size -Nipples become larger -Vagina increases in size -Hips become broader (pelvis widens & fat is deposited) -Hair develops in pubic region & under armpits |
| Puberty can be delayed in... | ...Extremely muscular girls (e.g. gymnasts) |
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