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Which hormones are steroid hormones? -Testosterone, estrogen, progesterone, cortisol -Break through plasma membrane, enter cell, bind with receptors inside cell What does oxytocin do? -Integral role in childbirth (stimulates contractions) -Released in breast feeding & orgasm climax -Calms, reduces pain, "cupid effect" Anterior Pituitary Gland growth hormone, cortisol, thyroid, follicle-stimulating hormone, milk production, ovulation/progesterone/testosterone Posterior Pituitary Gland Oxytocin, Antidiuretic (absorbs water from urine, reduces pain & stress) Adrenal Gland Mineralcorticoids mineral content of blood, Na/K ions Glucocortoids --> Regulate cell metabolism; deal with stress; cortisol Sex Hormones --> Androgen, Estrogen Adrenal Medulla epinephrine & nonepinephrine Pineal Gland -Melatonin Gonads -Ovaries & testes Which hormone is involved in lactation? -Prolactin What are the rhythms associated with hormone production (when)? Diurnal Rhythm --> they are present at higher levels during certain times of the day than during other times and the pattern is relatively consistent from day to day