Sunday, August 19, 2012

Endocrine Physiology 2


1. What hormones are secreted by the cells of zona fasciculate in the adrenal cortex?
Corticosteroids / cortisol

2. What is the site of action of Angiotensin II in the brain?
Subfornical region (thirst area) in hypothalamus

3. What is the location of the chemoreceptor trigger zone?
IV ventricle

4. What is the synonym of pituitary gland?
Hypophysis cerebri
 
5. Name the hormone secreted by the paraventricular nucleus of hypothalamus
Oxytocin

6. Which part of the brain controls the secretions from the posterior pituitary gland?
Hypothalamus-supraoptic and paraventricular nuclei

7. Name the hormone promoting milk letdown.
Oxytocin

8. Which organ functions as the most important buffer system of blood glucose level?
The liver

9. Which hormone regulates the extracellular calcium and phosphates concentrations?
Parathyroid hormone (PTH)

10. Name the types of cells of parathyroid that secrete PTH.
Chief cells

11. Which hormone is the principle mineralocorticoid?
Aidosterone

12. Which hormone is the principle glucocorticoid?
Cortisol

13. What is the standard unit of heat energy?
Calorie (cal)

14. What is the difference between calorie and Calorie?
Calorie (with capital letter C) is kilocalorie (kcal)

15. What is the ratio of volume of CO2 produced to the volume of O2 consumed per unit time in a steady state called as?
Respiratory quotient
 
16. What is the process in which a substance combines with oxygen or loose electrons?
Oxidation

17. What is the process that is reverse to oxidation?
Reduction

18. What is the process by which ATP is generated by the flavoprotein cytochrome oxidase system?
Oxidative phosphorylation

19. Name the enzyme that phosphorylates glucose in a cell.
Hexokinase

20. Name the process by which glycogen is formed
Glycogenesis

 ( UMS, 2008 )

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