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Reproduction - Coggle Diagram
Reproduction
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Endocrinology of female
ovarian cycle
normal reproductive function in human female depends on complex hormonal communication between hypothalamus, anterior pituitary gland and ovaries
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after puberty, female reproductive system shows regular cyclic changes, representing periodic preparations for fertilisation and pregnancy
cycle lasts 28 days and features vaginal bleeding that sheds uterine mucosa (menustration), which is closely associated with changes that occur during ovarian cycle
two phases of ovary
follicular phase: characterised by presence of maturing follicles. Follicles operate to produce mature egg for ovulation
luteal phase: corpus lutein is present and prepare reproductive tract for pregnancy if fertilisation takes place
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brain communicates to rest of body via hypothalamus, which produces GnRN and pulsatile release of LH and FSH in anterior pituitary . They track way down to ovaries and produce oestrogens (promote esters - egg ready for fertilisation) and progesterone (promote pregnancy if it is to occur)
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no fertilisation
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uterine prostaglandin release initiated, causing uterine smooth muscle contraction
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Fertilisation
embryo secretes human chorionic gonadotropin (does everything the LH does and LH maintains corpus lutem)
human chorionic gonadotrophin maintains corpus luteum and sex hormone production until placenta take over hormone production
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