The American diet isn't as healthy as it could be. As it has become easier to obtain and prepare food, the amount of food we eat has increased. American adults eat more calories than they did 50 years ago primarily due to larger portion sizes, especially from fast foods, and an increase in the frequency of snacking and calories consumed from those snacks. As a result, over two-thirds of American adults weigh more than they should.
Think About This:
Americans are replacing more and more home cooked meals with meals
from fast food restaurants. What is the cost of this
convenience?
In Your Topic Post: In your own words;
In: Anatomy and Physiology
As part of a pathophysiology lecture in a fourth year course, you are informed that two different types of G-protein coupled receptors are expressed on a human organ system. The activation of receptor-1 (R-1) causes an elevation in cyclic adenosine monophosphate (cAMP) levels in the cells. While the activation of receptor-2 (R-2) causes an inhibition in the rise of cAMP levels in the same cells.
Q1. Which G-protein alpha subunit is most likely associated with R-1 and R-2? 2 points R-1 = Q2.
You are further informed that activation of R-1 causes relaxation of smooth muscles in the organ expressing these receptors.
What do you think could be the possible effect of R-2 activation? 1 point
Q3. If the pathophysiology (clinical problem) in patients is excessive muscle contraction and constriction of the tissue, how can you target these two receptors to correct the underlying disorder? Note: Think in terms of agonist/antagonist for receptors R-1 and R-2. 2 points
In: Anatomy and Physiology
detail how Wolff’s Law can explain an in increase in bone density, and also, how it can explain decrease in bone density.
In: Anatomy and Physiology
In: Anatomy and Physiology
What is the RMP?
Depolarization: Which gates are open and which gates are closed?
Repolarization: Which gates close and which ones open?
How does the cell go back to RMP?
In: Anatomy and Physiology
Write a 1,000-1,250 word paper in which you analyze a scenario using the Emergency Medical Treatment and Active Labor Act (EMTALA).
You are the administrator on call for Hospital A and are responsible for accepting and rejecting patients. You receive a call at 2:00am from Health Hosptial B regarding a patient with a severed ear.
The ED physician is calling to arrange an EMTALA-qualified transfer from his hospital to yours, but the ENT physician on call at your hospital is refusing to accept the transfer, stating that the patient does not need a higher level of care.
You call your ENT on call and he admits he has just had three glasses of wine and will not be available for about 6 hours. You electronically send him the record that Health Hospital B would send with the patient. The ENT physician advises that the ear looks salvageable and could easily be sutured in any ED. The ED physician at Health Hospital B is ver nervous about the possibility of an EMTALA violation.
1. If you decide to reject the patient, is this a violation of EMTALA? Explain.
2. What decision will you make as the administrator? Explain.
3. Based on this scenario, what could be implemented to prevent this type of situation from occurring in the future?
4. Under what scenario would the Hospital A physician be concerned about an EMTALA situation?
In: Anatomy and Physiology
Scenario 2: You are informed that an endocrine organ in the body expresses four membrane receptors a) receptor-i which is Gs coupled b) receptor-ii which is Gi coupled c) receptor-iii which is Gq coupled d) receptor-iv is a receptor guanylyl cyclase You are further informed that an increase in Ca2+ concentration or an increase in the active PKA levels inside the organ both will result in release of hormone from this endocrine organ. On the other hand, PKG inhibits the release of hormone from this organ. What would be the expected outcome (increased blood concentration of hormone or decreased blood concentration of hormone) with the following drugs: Q4. Receptor 1 agonist? 1 point
Q5. Receptor 1 antagonist? 1 point
Q6. Receptor 2 agonist? 1 point
Q7. Receptor 2 antagonist? 1 point
Q8. Receptor 3 agonist? 1 point
Q9. Receptor 3 antagonist? 1 point
Q10. Receptor 4 agonist? 1 point
Q11. Receptor 4 antagonist? 1 point
In: Anatomy and Physiology
CELLULAR RESPIRATION
1- Steps of Cellular Respiration: Anaerobic vs. Aerobic
a. Glycolysis
b. Citric acid cycle
c. Electron transport chain (ETC)
2- Carbohydrate storage.
In: Anatomy and Physiology
I'm calculating the equilibrium potentials of sodium ions and potassium ions using the Nernst equation. In the problem I just did, I calculated Ena= +69.9 mV and Ek=-92.0 mV.
The next part of the question asks, "If the conditions are the same as above, at which membrane potential would you expect the movement of the Na and K ions to cancel each other out and there be no net change in membrane potential?"
Do I average their equilibrium potentials or is it more complicated than that?
In: Anatomy and Physiology
In: Anatomy and Physiology
In: Anatomy and Physiology
Describe normal regulation of blood glucose via the pancreatic hormones. How is this altered with Diabetes? Why is Diabetes called an impairment to the homeostasis of glucose? What is the difference between Type I and Type II diabetes?
In: Anatomy and Physiology
Why is cholesterol able to integrate into a lipid bilayer?
| Because it is a bulky steroid |
| Because it has a planar organization |
| Because it binds covalently to phospholipids |
| Because it has an amphiphatic organization, similar to membrane lipids |
| Because it prevents the dense packing of phospholipids |
In: Anatomy and Physiology
What is an instrumental good?
Something that is valuable in and of itself, regardless of the consequences.
Something that is good only for what you can get out of it, only for what it can be used for
Something that generates happiness and pleasure in life
Something that generates profit and financial security
It is a kind of pleasurable sensation obtained by certain stimuli
Philosophy Category!
In: Anatomy and Physiology