100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
Previously searched by you
Previously searched by you
logo
Summary The Endocrine System Review CA$6.65
Add to cart
Quickly navigate to
Preview
  2.  
  3. Memorial University Of Newfoundland (MUNSU )
  4.  
  5. Nursing
  6.  
  7. NURS 1002: Anatomy and Physiology I (NURS1002)

Summary

Summary The Endocrine System Review

 3 views  0 purchase

An easy-to-follow complete review of the human endocrine system. Explains each concept in detail, step-by-step. This review guide will help you focus on what is important to learn for midterm and final exams.

Preview 2 out of 9  pages

Document information

  • October 25, 2021
  • 9
  • 2021/2022
  • Summary

Subjects

Written for

All documents for this subject (7)

Seller

avatar-seller
BScNstudent

Content preview

THE ENDOCRINE SYSTEM
 Hormones – chemicals circulated in the blood or lymphatic fluids that affect the activity
of another tissue elsewhere in the body
o Paracrine factors are similar but the affects are generally limited to local area
where they are released
o Neuroendocrine secretions are similar but they are released from synaptic
terminals instead of endocrine glands
 Endocrine gland is an organ who’s primary function is to produce and release hormones




HORMONE CLASSIFICATION

Structural:

, HORMONE CLASSIFICATION
 Lipid derived – non water soluble
o Steroid hormones (derived from cholesterol)
 Produced by gonads, adrenal gland
 Ex: cortisol, aldosterone, estrogen, progesterone, testosterone
o Eicosanoids (mostly paracrine factors) that are derived from arachidonic acid
 ex: leukotrienes, prostaglandins
o Require a carrier protein to transport them in the blood as they are not water
soluble
o Latency = around 60-90 minutes
o Have intracellular receptors
o Bind to receptors that can alter the rate of DNA transcription = alter protein
synthesis
o Take longer to affect cel function b/w they require time for production of new
proteins
 Non-lipid derived (non steroid) – water soluble
o Amino acid derivative – derived from either tyrosine or tryptophan n
o Peptide and protein – short or long chains of amino acids
o Glycoprotein – protein hormones with carbohydrate groups attached
o Mostly produced by the hypothalamus, pituitary, pineal gland, thyroid, pancreas
and parathyroid gland
o Receptors found usually on cell surface (b/w they cannot get through the PM)
o Only activate existing hormones
o Latency around 1 minute


PRINCIPLES OF HORMONE ACTION
HORMONES THAT BIND SURFACE RECEPTORS

 Usually referred to as “first messenger”
 The intracellular events triggered by these hormones usually involve the production of
an intracellular compound to carry out the hormone’s action
o Secondary messenger – most common is cAMP and calcium ions
 Hormone-receptor complex is often linked to a G-protein on the inside of
the cell membrane; some of them activate or inhibit adenylate cyclase
which converts ATP to cAMP, at which point the cAMP activates other
enzymes or opens ion channels

HORMONES THAT ENTER THE CELL

 Can physically pass through the PM to interact with receptors inside the cell

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

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

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

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 BScNstudent. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for CA$6.65. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

50155 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 14 years now

Start selling
CA$6.65
  • (0)
Add to cart
Added