Exam (elaborations)
BIO 245 Exam 1 - Endocrine & Reproductive
- Course
- Institution
BIO 245 Exam 1 - Endocrine & Reproductive
[Show more]
Seller
Follow
modockochieng06
Content preview
BIO 245 Exam 1 - Endocrine &Reproductive
adenylate cyclase pathway - ANS-1. Water soluble hormone (first messenger) binds
receptor on outside of plasma membrane-->
2. G protein activated
3. Activated G protein activates a specific plasma membrane enzyme (namesake)
4. ATP used to generate second messenger cAMP
5. cAMP activates protein kinase A, a phosphorylating enzyme-->activation or inhibition
of target
adrenocorticotropic hormone - ANS-Hormone of the anterior pituitary that stimulates the
adrenal cortex to release glucocorticoids (ex-cortisol).
Release stimulated by corticotropin releasing hormone from hypothalamus.
angiotensin II - ANS-active form of angiotensinogen
angiotensinogen - ANS-Inactive hormone secrete by liver. Converted to activated form
via enzymes from kidneys and lung blood vessels.
Active form of hormone helps raise BP--vessel constriction, decrease urine output,
stimulates thirst.
antagonistic - ANS-Glucagon works to raise the blood glucose levels when too low &
insulin works to lower blood glucose levels when too high--both have same goal of
maintaining a normal blood glucose level. This is an example of _____ hormone
interaction.
anterior - ANS-Both lobes of the pituitary gland secrete hormones, but ONLY the _____
lobe produces them.
antidiuretic hormone (ADH) - ANS-Hormone that stimulates water retention & decreases
urine output to maintain blood volume--stimulates thirst and constricts blood vessels,
raising BP.
Produced by hypothalamus, released by posterior pituitary.
, atrial natriuretic peptide (ANP) - ANS-Hormone secreted by the atria of the heart that
lowers BP, increases urine output, & dilates blood vessels.
autocrine - ANS-_____ stimulation is when local hormones have effects on the same
cell where they were formed.
biogenic amines - ANS-Steroids and thyroid hormone are _____ _____ (class of
hormones).
biogenic amines - ANS-Thyroid hormones, catecholamines (norepinephrine,
epinephrine, dopamine), and melatonin are what class of hormones?
bulbourethral glands - ANS-Produces pre-ejaculatory fluid
calcitonin - ANS-Hormone secreted by parafollicular cells of the thyroid gland that
regulates blood calcium by decreasing levels when too high.
Antagonistic relationship w/PTH
can - ANS-Steroids _____ cross the plasma membrane.
cannot - ANS-Biogenic amines ____ cross the plasma membrane (exception TH)
cannot - ANS-Peptides/proteins _____ cross the plasma membrane.
carrier proteins - ANS-Lipid soluble hormones travel in the blood with the help of _____
_____.
catecholamines - ANS-Biogenic amines secreted by the adrenal medulla that affect the
sympathetic nervous system in stress response (epinephrine, norepinephrine)
corticotropin releasing hormone (CRH) - ANS-Name the hormone produced in the
hypothalamus that stimulates the secretion of ACTH.
down regulation - ANS-_____ _____ decreases # of receptors in response to elevated
hormone concentration in the blood. Occurs when hormone is "chronically available."
**decreases sensitivity
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller modockochieng06. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $7.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
62890 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now