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name 5 functions the endocrine system is responsible for:
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list 7 major organs/structures/ glands that are in the endocrine system
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phys lab quiz 2

endocrinology & glucose homeostasis

QuestionAnswer
name 5 functions the endocrine system is responsible for: metabolism, body temp, reproduction, growth & development
list 7 major organs/structures/ glands that are in the endocrine system hypothalamus, pineal gland, pituitary gland, thyroid gland, adrenal gland, ovary testis
explain difference between positive and negative feedback loop: positive feedback : the response reinforces stimulus sending parameter farther from setpoint negative feedback: response counteracts stimulus shutting off response loop
what are the mian difference between hormone and neuron signaling? hormone uses chemical messengers secreted blood by epithial cells forming endocrine glands neuron signaling uses electrical impulses send messages through neurons
the command center for the endocrine system is the _ hypothalamus
how is the release & the results of the release of anterior pituitary hormones different from the release of posterior pituitary hormone(ADH & oxytocin) anterior lobe produces & releases hormones. posterior lobe doesnt produce hormones done by nerve cells in hypothalamus but does relase them in circulation
ADH and oxytocin are released from the _ to the _ then directly into the __ neurosecretory cells, pituitary gland, bloodstream
why is it importatn that a postive feedback loop occurs during childbirth? releases of oxytocin stimulates muscle contractions that push baby through birth canal. releases of oxytocin results in stronger or augmented contractions in labor
when glucose levels are high in blood stream (after eating a meal) how is glucose homeostasis regulated? when blood sugar rises cells in pancreas release insulin causing body to absorb glucose from blood &lowering blood sugar level to normal
when glucose level is low in blood stream (during fasting) how is glucose homestasis regulated ? when blood sugar levels drop pancreas releases glucagon to raise them balance helps provide enrgy to cells preventing damage
type 1 diabetes (5-10% of all diabetes cases): genetic conditon often shows up early in life; body attacks cells in pancreas means it cannot make only insulin
type 2 diabetes (90% of all diabetes cases): mainly lifestyle relates & develops over time; body unable make enough insulin or insulin you do make doesnt work
prediabetes have higher than normal blood sugar level, not enough to be considered tyoe 2 diabetes. (can develop into type 2 but not type 1)
pathway results in release of thyroid hormone: hypothalamus, TRH, anterior pituitary, TSH, TH
pathway results in release of cortisol hormone: CRH, anterior pituitary, ACTH, adrenal gland, secrete cortisol
pathway results in release of testosterone hormone: hypothalamus , GnRH, anterior pituitary, LH, testosterone;
the effects of the thyroid hormone that can affect the body increase a persons BMR & increase heat production (regulating rate which body uses calories, energy)
the effects of the cortisol hormone that can affect the body provide bosy w/ fuel by breaking down catabollism materials of body ( enhances brain use of glucose & increases availability of substances repair tissue)
the effects of the testosterone hormones that can affect the body responsibel for male sex drive & secondary sex characteristics( increase body hair, depper voice, muscle mass, etc.)
example of postive feedback are contractions in childbirth & a ripening of a fruit
example of negative feedback inculdes regulation of blood glucose levels & osmoregulation
endocrine system uses chemical signaling (hormones, produced by glands.)
nervous system uses electrical signaling ( neural impluses) signal transmission is fast because neurons are interconnected
Created by: nora.michele
 

 



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