Questions on the Parathyroid Axis and Calcium Regulation

The Zero to Finals Medical Revision Podcast

Thomas Watchman

Life Sciences, Education, Medical Finals, Medicine, Surgery, Health & Fitness, Paediatrics, Medical Student, Medical Education, Medical Exams, Medical School, Medical Revision, Science, Learn Medicine, Finals Revision, Obstetrics And Gynaecology

4.8 • 678 Ratings

🗓️ 22 November 2024

⏱️ 10 minutes

🔗️ Recording | iTunes | RSS

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Summary

This episode contains short-answer questions on the parathyroid axis and calcium regulation. Written notes can be found at https://zerotofinals.com/physiology/endocrine/parathyroidaxis/ or in the Zero to Finals Endocrine System book. You can find short-answer questions, multiple-choice questions, extended-matching questions, digital flashcards, a course on how to learn medicine and the revision tracking tool at members.zerotofinals.com. The audio in the episode was expertly edited by ...

Transcript

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0:00.0	Hello and welcome to the Zero to Finals podcast.
0:10.2	My name is Tom, and in this episode I'm going to be going through questions on the parathyroid axis and calcium regulation.
0:19.4	And you can find written notes on this topic at 0.0.finals.com
0:23.4	slash parathyroid axis. And you can find these questions at members.0 tofinals.com. And you can find
0:33.1	both the notes and the questions in the 0 to finals endocrine system book, which is coming
0:39.6	soon. So let's get straight into it. Question one. Which cells in the parathyroid gland
0:47.5	produce and release parathyroid hormone? The chief cells.
0:57.0	Question 2.
0:59.0	What is the primary stimulus for releasing parathyroid hormone?
1:07.0	Low calcium levels.
1:09.0	Question 3.
1:17.4	Which three organs are involved in increasing the serum calcium level under the influence of parathyroid hormone?
1:25.8	The bones, kidneys and intestines.
1:30.3	Question 4. What is the ideal range for the serum calcium in the blood?
1:38.3	2.2 to 2.6 millimoles per liter.
1:47.0	Question 5. How does parathyroid hormone from the bones by increasing the activity and number of osteoclasts.
2:14.2	Question 6. What is the effect of parathyroid hormone on the kidneys?
2:30.5	It increases calcium reabsorption and decreases phosphate reabsorption.
2:37.8	So less calcium is excreted in the urine and more phosphate is excreted in the urine.
2:43.9	Question 7. How does parathyroid hormone influence calcium absorption in the intestines.
2:51.6	Parathyroid hormone increases vitamin D activity, which increases calcium absorption from food.
3:13.2	Question 8. How does SinaCalcet workics calcium by activating calcium sensing receptors on the parathyroid gland, reducing parathyroid hormone production.
	...

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