Download Hormone - Get a Clue with Mrs. Perdue

• Working with nervous system, endocrine
system coordinates and directs activity of
body’s cells
• Uses chemical messengers called hormones to
regulate and maintain body’s homeostasis
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Pineal
Hypothalamus
Pituitary
Thyroid
Parathyroid
Thymus
Adrenal
Pancreas
Gonads
(Ovaries & Testes)
• Found in epithalamus in brain
• Hormone: Melatonin
• Representative Actions: Involved in
sleep/wake patterns (daily and seasonal)
• Regulated By: Light/dark cycles
• Part of brain that controls pituitary gland
• Hormones released by posterior pituitary;
releasing and inhibiting hormones that
regulate anterior pituitary
• Hormone: Oxytocin
• Representative Actions: Stimulated contraction
of uterus and milk “letdown” reflex
• Regulated By: Nervous system (hypothalamus)
in response to uterine stretching and/or
suckling of baby
• Hormone: Antidiuretic hormone (ADH)
• Representative Actions: Promotes retention of
water by kidneys
• Regulated By: Hypothalamus in response to
water/salt imbalance
• Hormone: Growth hormone (GH)
• Representative Actions: Stimulated growth
(especially of bones and muscles) and
metabolism
• Regulated By: Hypothalamic releasing and
inhibiting hormones
• Hormone: Prolactin (PRL)
• Representative Actions: Stimulates milk
production
• Regulated By: Hypothalamic hormones
• Hormone: Follicle-stimulating hormone (FSH)
• Representative Actions: Stimulates production
of ova and sperm
• Regulated By: Hypothalamic hormones
• Hormone: Luteinizing hormone (LH)
• Representative Actions:
Stimulates ovaries and testes
• Regulated By: Hypothalamic
hormones
• Hormone: Thyroid-stimulating hormones (TSH)
• Representative Actions: Stimulates thyroid
gland
• Regulated By: Thyroxine in blood; hypothalamic
hormones
• Hormone: Adrenocorticotropic hormone (ACTH)
• Representative Actions: Stimulates adrenal
cortex to secrete glucocorticoids
• Regulated By: Glucocorticoids; hypothalamic
hormones
• Hormone: Thyroxine (T4) and triodothyronine (T3)
• Representative Actions: Stimulates metabolism
• Regulated By: TSH
• Hormone: Calcitonin
• Representative Actions: Reduces blood calcium
level
• Regulated By:
Calcium level in blood
• Hormone: Parathyroid hormone (PTH)
• Representative Actions: Raises blood calcium
level
• Regulated By:
Calcium level in blood
• Hormone: Thymosin
• Representative Actions: “Programs” T cells
• Regulated By: Not known
• Hormone: Epinephrine and Norepinephrine
• Representative Actions: Increase blood glucose;
increase rate of metabolism; constrict certain
blood vessels
• Regulated By: Nervous system (sympathetic
division)
• Hormone: Glucocorticoids
• Representative Actions: Increase blood glucose
• Regulated By: ACTH
• Hormone: Mineralocorticoids
• Representative Actions: Promote reabsorption
of Na+ and excretion of K+ in kidneys
• Regulated By: Changes in blood volume or
blood pressure; K+ or Na+ levels in blood
• Hormone: Insulin
• Representative Actions: Reduces blood glucose
• Regulated By: Glucose level in blood
• Hormone: Glucagon
• Representative Actions:
Raises blood glucose
• Regulated By:
Glucose level in blood
• Hormone: Androgens
• Representative Actions:
Support sperm formation;
development and
maintenance of male
secondary sex characteristics
• Regulated By: FSH and LH
• Hormone: Estrogens
• Representative Actions:
Stimulate uterine lining
growth; development
and maintenance of
female secondary sex
characteristics
• Regulated By: FSH and
LH
• Hormone: Progesterone
• Representative Actions: Promotes growth of
uterine lining
• Regulated By: FSH and LH