APHY 102 Anatomy and Physiology Study QuestionsComplete With A+ Graded Answers
7 views 0 purchase
Course
APHY 102
Institution
APHY 102
APHY 102 Anatomy and Physiology Study Questions Endocrine System with correct Answers
List the steps of the action of most non steroid hormones
1. Combines with receptor site on membrane, activating G protein
2. Adenylate cyclase is activated by G protein in target cell
3. Adenylate cyclase con...
aphy 102 anatomy and physiology study questions en
Written for
APHY 102
All documents for this subject (639)
Seller
Follow
ACADEMICAIDSTORE
Reviews received
Content preview
APHY 102 Anatomy and Physiology Study
Questions Endocrine System with correct
Answers
List the steps of the action of most non steroid hormones
1. Combines with receptor site on membrane, activating G protein
2. Adenylate cyclase is activated by G protein in target cell
3. Adenylate cyclase converts ATP to Cyclic AMP
4. Cyclic AMP activates protein kinases
5. Protein kinases activate protein substrates in the cell that change metabolic processes
6. Cellular changes produces the hormones effects
Cyclic AMP
Secondary chemical messenger that directs the synthesis of protein by ribosomes
Adenylate cyclase
converts ATP to cAMP
cAMP
cyclic adenosine monophosphate
Contrast the definitions of endocrine gland and exocrine gland
Endocrine. is ductless, Exocrine. has ducts; Endocrine. secretes to the blood stream, Exocrine. secretes
directly to target organ
Explain the specificity of a hormone for its target cell
A hormone's target cells have specific receptors that other cells lack, made of proteins or
glycoproteins with binding sites for a specific receptor
List six general functions of hormones
1. Help regulate metabolic processes
2. Control the rates of certain chemical reactions
3. Aid in transporting substances through membranes
4. Help regulate water balance
5. Help regulate electrolyte balance
6. Help regulate blood pressure
7. Play roles in reproduction, development, and growth
Explain how hormones can be grouped on the basis of their chemical composition
They can be either steroids or steroid-like, or nonsteroids which include amines, peptides, proteins, or
glycoproteins
List the steps of steroid hormone action
1. Diffuses through plasma membrane
2. Combines with protein receptors in the nucleus
3. Interacts with receptor complex activates/inhibits a gene
4. Influences the transcription of DNA
5. New proteins or enzymes carry out the effects of hormone
, Explain how prostaglandins are similar to hormones and how they are different
1. Paracrine substances
2. Very potent in small amounts
3. not stored in cells, but synthesizes just before release
4. rapidly inactivated after use
5. can activate/inhibit adenylate cyclase
-control cAMP production
-alter a cell's response to hormones
6. Has a wide variety of effects: contract/relax smooth muscle; stimulate/inhibit secretions; regulation
of BP; controlling movement of H2O & Na+ in kidneys; promote inflammation
Diagram the three mechanisms that control hormone secretion, including the negative feedback in
each mechanism
1. Hypothalamus
2. Nervous System
3. Changing level of substances in plasma
Describe the location and structure of the pituitary gland
Located at the base of the brain, attached to the hypothalamus by the infundibulum; has two lobes:
anterior and posterior
List the hormones that the anterior pituitary gland secretes
1. GH (growth hormone)
2. PRL (prolactin)
3. TSH (thyroid-stimulating hormone)
4. ACTH (adrenocorticotropic hormone)
5. FSH (follicle-stimulating hormone)
6. LH (Luteinizing hormone)
Explain two ways that the brain controls pituitary gland activity
The hypothalamus controls pituitary gland activity in two ways: one by capillary vessels that send
signals down the infundibulum to the anterior pituitary, and the other by nerve impulses to the
posterior pituitary
Releasing hormones come from which of the following?
a. thyroid
b. anterior pituitary gland
c. posterior pituitary gland
d. hypothalamus
e. pineal gland
d. hypothalamus
Match the following hormones with their actions.
1. GH
2.TSH
3. PRL
4. ACTH
5. FSH
6. LH
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 EFT, 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 this summary from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller ACADEMICAIDSTORE. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy this summary for R195,54. You're not tied to anything after your purchase.
