Exam (elaborations)
PE 310- Endocrine System (1)
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PE 310- Endocrine System (1)
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PE 310- Endocrine System-Consists of endocrine glands that secrete hormones
-Hormones are chemical messengers - ANS-ENDOCRINE SYSTEM
Secrete into the interstitial fluid - ANS-ENDOCRINE GLANDS
Secrets through a duct - ANS-EXOCRINE GLANDS
neurotransmitters at synapse, to transmit a signal from neuron to another cell - ANS-Neural
communication
"local hormones" are released within a tissue and are used to affect neighboring cells within that
tissue - ANS-Paracrine Signals
release of hormones into the blood to transport throughout body - ANS-Endocrine
communication
cell releases hormone and binds to autocrine receptor of that same cell - ANS-Autocrine
signaling
(hybrid) neuron releases a hormone that enters a blood vessel. - ANS-Neuroendocrine
communication
-From either amino acid tyrosine or tryptophan
-Adrenal medulla: (epinephrine, norepinephrine) hydrophilic
-Thyroid gland: (thyroxine, triidothyrosine) lipophilic - ANS-Amino acid derivatives
Derived from cholesterol
Lipophilic - ANS-Steroid hormones
Chains of amino acids
Most common type
Hydrophilic - ANS-Peptide hormones
blood conc. decreases -> stimulate hormone production - ANS-Negative Feedback
increase in blood conc. amplifies change feedback mechanism - ANS-Positive feedback
mechanism
tropic hormone released by 1 endocrine gland and regulates secretion by another endocrine
gland - ANS-hormonal control
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