Biological Psychology

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PSYCH 220 EXAM 4 STUDY GUIDE: VERSION ONE pg.  65-66, 325-326, 331-334 Hormone :  a chemical message secreted by a gland or just a cell in general that transports through the blood  NOT the same as a neurotransmitter        •       Like a radio station        •       Goes from sender to many receivers        •       Affects many organs/ body parts        •       Has LONG lasting affects Endocrine glands produce hormones Neurotransmitter :        •       Radio to one person        •       Affects only the neurons near its point of release        •       Shorter affects than a hormone being released Protein hormones : long Amino Acid chains Peptide hormones : short AA chains They attach to membrane receptors and activate a second messenger  within the cell Epinephrine, oxytocin, insulin, etc are neurotransmitters AND hormones Pituitary Gland :        1.        Anterior Pituitary        •       is BIGGER than posterior pituitary gland        •       Glandular tissue        •       Makes 6 hormones but hypothalamus controls their  release        •       Releasing Hormones: hypothalamus secretes these that go  through the blood to the anterior         •       Releasing hormones stimulate release of those 6  different hormones        •       i.e. Stimulates the release of hormones like FSH and LH        •       Plays role of negative feedback (if no FSH, hypo  releases FSH  releasing hormone which tells the   gonads to release  FSH; once FSH is  released, FSH tells hypothalamus it can stop  producing FSH releasing hormone until FSH is low and needed later)        2        Posterior Pituitary :        •       Neural tissue        •       Considered extension of the hypothalamus        •       Neurons in hypothalamus makes 2 hormones:        1       Oxytocin - antidiuretic        2       Vasopressin - antidiuretic        •       They go to the Posterior pituitary which then releases  the hormones into the blood Recap:        1       Hormones affect LONGER and MORE areas.        2       Posterior Pituitary = 2 hormones, like hypothalamus,  neural tissue
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       3       Anterior Pituitary = releasing hormones, makes  endocrine glands release 6 hormones; gland                    tissue. Steroid hormones
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EXAM 4 STUDY GUIDE - :VERSIONONE pg.6566,325326,331334...

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