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Hormones. Hormone Classification. Steroids. Lipids w/ four fused rings Cholesterol – a steroid with an alcohol. Cholesterol. Cholesterol. Estrogen. Testosterone. Progesterone. Endocrine System. Pancreas. Hormone Uses. Hormone Uses. Oral Contraceptives.
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Steroids • Lipids w/ four fused rings • Cholesterol – a steroid with an alcohol Cholesterol
Cholesterol Estrogen Testosterone Progesterone
Endocrine System Pancreas
Oral Contraceptives • FSH and LH are messengers from the pituitary gland that control the female reproductive cycle. • The secretion of FSH and LH can be controlled by the amount of estrogen and progesterone present • Without FSH and LH, ovulation (release of egg from ovary) cannot occur. • This is how oral contraceptives work – pill is mixture of estrogen and progesterone that work to prevent release of FSH and LH from pituitary gland and thereby prevent ovulation. • No ovulation = no egg in uterus = no baby.