glands and hormones 13.1/13.2 Flashcards

1
Q

tropic hormones

A

hormones that target endocrine glands to release different hormones
often control releasing hormone by negative feedback

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2
Q

2 parts of the pituitary gland

A

anterior and posterior

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3
Q

pituitary gland is controlled by releasing hormones from ____

A

hypothalamus

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4
Q

posterior pituitary

A

stores and releases hormones (ADH and oxytocin)

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5
Q

anterior pituitary synthesizes and releases these 6 major hormones

A

1)hGH 2)PRL 3)TSH 4)ACTH 5) FSH 6) LH c

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6
Q

controlled by ____ and ____ hormones from hypothalamus

A

release and release inhibiting

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7
Q

pathway with releasing hormone

A

hypothalamus- releasing hormone- anterior pituitary- release of hormone

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8
Q

path way with release inhibiting hormones

A

hypothalamus- release inhibiting hormone- anterior pituitary- does not release hormone

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9
Q

hGH is produced and released form

A

anterior pituitary

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10
Q

hGH function (2)

A

travels to liver stimulating it to release growth factors

increase protein synthesis, cell division, and growth of muscle/bone/cartilage

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11
Q

excessive growth =

A

gigantism

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12
Q

small stature with normal proportions=

A

pituitary dwarfism

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13
Q

acromegaly condition

A

too much hGH leads to wide bones but no height increase

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14
Q

thyroid gland is found _____ with one lobe on each side of the _______

A

below the larynx
trachea

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15
Q

thyroid gland produces and releases

A

thyroxine (T4)

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16
Q

function of thyroxine (3)

A

increase metabolism of fats proteins +carbs

increase cell resp.

development of cells and tissues in children

17
Q

thyroxine targets

A

all cells but expeciallly the liver, increasing heart rate and muscles used for cell resp

18
Q

thyroxine is controlled by

A

thyroxine-stimulating hormone (TSH)

19
Q

TSH targets ___ and stimulates the release of _____

A

the thyroid
thyroxine T4

20
Q

TSH is regulated by

A

a negative feedback loop

21
Q

hypothyroidism

A

not enough thyroxine

22
Q

hyperthyroidism

A

too much thyroxine

23
Q

graves disease

A

severe hyperthyroidism caused by immune system attacking the thyroid

24
Q

goiter

A

enlargement of the thyroid due to lack of iodine (no iodine= no thyroxine=m broken negative feedback loop)

25
calcium regulation is controlled by ____ and ______
calcitonin and parathyroid hormone (PTH)
26
calcitonin originates in the
thyroid
27
function of calcitonin (2)
increase Ca uptake by bones, lowering Ca levels in blood inhibits PTH
28
calcitonin and PTH have ____ effects
opposite
29
PTH =
parathyroid hormone
30
PTH produced an released from
parathyroid glands
31
PTH is released in response to
low blood Ca levels
32
PTH function (3)
release Ca from bones into blood reabsorb Ca into kidneys and absorb into intestines controls negative feedback loop