1. Does the nervous system or the endocrine system react faster to external/internal
stimuli?: nervous system
2. What are 2 major groups of hormones and what are their derivatives?:
1. peptide
(derived from proteins and catecholamines)
2.steroids (derived from cholesterol)
2. Hormones can react with cells that have what on their cell surface?: receptors
3. Do peptide or steroid hormones react faster?: peptide hormones
4. True or false: Endocrine glands contain ducts and secrete their contents directly into
an epithelial lining: False
endocrine glands are ductless, secreting their contents directly into the bloodstream
5. True or false: the hypothalamus and pituitary glands are in the abdomen: False they
are located in the brain
6. the adrenal glands are found on top of the _____________.: kidneys
7. name 3 secondary endocrine organs: heart, thymus, kidneys, gonads (testes & ovaries)
8. Describe homeostasis in the body: (set-point) is a range in which the body acts to
maintain all its levels for function.
9. during negative feedback a hormone level is high. What happens to hor-
mone production?: the brain detects the hormone level is too high and hormone
production is shut off
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, Portage Learning A&P I: Module 6 Exam Study Guide
10. the action of oxytocin (OXT) works through positive or negative feedback?: positive
feedback
11. Why are the neurons in the hypothalamus called neurosecretory cells?: they are
cells that respond to neurotransmitters and produce hormones
12. axons travel from the hypothalamus terminate in what region of the brain?-
: posterior pituitary
13. The posterior pituitary gland stores what 2 main hormones?: ADH and OXT
(antidiuretic hormone and oxytocin)
14. What does ADH do in the body?: ADH promotes the reabsorption of water from the
collecting ducts, which receive urine produced by nephrons within the kidneys.
As the blood becomes dilute, the hormone no longer is released until it is needed again
15. What hormone stimulates the release of milk from the mammary glands?: oxytocin
(OXT)
16. What are the primary endocrine organs?: hypothalamus pituitary glands pineal
gland thyroid gland parathyroid gland adrenal glands pancreas
17. What major hormones are secreted from the anterior pituitary gland?: growth
hormone (GH) prolactin (PRL)
melanocyte stimulating hormone (MSH) thyroid stimulating hormone
(TSH) adrenocorticotropic hormone (ACTH) follicle stimulating hormone
(FSH) luteinizing hormone (LH)
18. What major hormones are secreted from the posterior pituitary
gland?: oxytocin (OXT)
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