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ANSC 222 exam II Questions with 100% Actual correct answers | verified | latest update | Graded A+ | Already Passed | Complete Solution

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ANSC 222 exam II Questions with 100% Actual correct answers | verified | latest update | Graded A+ | Already Passed | Complete Solution

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  • June 19, 2024
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  • 2023/2024
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  • ansc 222 exam ii questions with 100 actual corre

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  • NCSU Bio 183
  • NCSU Bio 183
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ANSC 222 exam II
endocrine system - ANS-glands secrete hormones into the blood

hormone - ANS-signalling molecule from gland

cytokines - ANS-made by T cells to recruit more immune cells

hormone can only bind to specific receptor w right shape - ANS-receptor/target
specificity

steroid and peptide - ANS-2 classes of hormones

steroid hormones - ANS-pass through membrane, lipid soluble, intracellular receptors

peptide hormones - ANS-cell membrane receptor, charged, water soluble,
Ion&G-Protein&tyrosine kinase receptors

homeostasis - ANS-homeostasis->feedback->target set point->+/- feedback

negative feedback - ANS-stabilize around set point

positive feedback - ANS-goes away from set point ex milk production

Hypothalamus-Pituitary-Adrenal axis - ANS-CRH (Corticotropin-releasing hormone)
released from hypothalamus, ACTH (Adrenocorticotropic hormone) released from
anterior pituitary, cortisol from adrenal cortex

sympathetic nervous system - ANS-fight or flight

Cortisol - ANS-released from adrenal glands, inhibits CRH and ACTH via negative
feedback

overactive HPA - ANS-too much cortisol, cushing's syndrome, blood or urine test for
which part of HPA axis the issue lies

Hypothalamus-Pituitary-Thyroid axis HPT - ANS-Hypothalamus releases
Thyrotropin-releasing hormone (TRH), Pituitary releases Thyroid Stimulating Hormone
(TSH), Thyroid releases T3 and T4 for

, What does the HPT axis control? - ANS-metabolism, development, and growth

Hyper and Hypo thyroidism - ANS-too much or too little thyroid hormone, caused by
genetics, tumor/thyroid size, tumor on hypothalamus or pituitary, can be medicated and
monitored or thyroid removed surgically

Grave's disease - ANS-hyperthyroidism, autoimmune, creates antibodies to increase
gland activity

Why do they take blood from veins as opposed to arteries? - ANS-less pressure

Hypothalamus-Pituitary-Liver axis HPL - ANS-hypothalamus releases GHRH (Growth
hormone-releasing hormone), pituitary releases GH (growth hormone) , Liver produces
Insulin-like Growth Factor 1 (IGF-1)

what is the HPL axis involved in? - ANS-growth

Acromegaly/gigantism - ANS-HPL axis, targets bone and muscle, metabolism and cell
proliferation

Which axis is heavily involved in milk production - ANS-HPL - GH itself can increase
milk production

Lactation - ANS-oxytocin (stimulated milk release for suckling - milk flow) and prolactin
(enlarge mammary glands during pregnancy) plus other hormones (insulin, cortisol,
thyroid, etc), positive feedback - increase suckling increase oxytocin increase milk
release

Which are the only hormones secreted from posterior pituitary? - ANS-oxytocin and
vasopressin

Hypothalamus-Pituitary-Gonad axis HPG - ANS-H releases GnRH
(Gonadotropin-releasing hormone), P releases FSH and LH (follicle stimulating
hormone and Luteinizing hormone), gonads release estrogen and testosterone

name the 4 axes - ANS-HPG, HPA, HPT, HPL

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