Proximal Convoluted Tubule (PCT): Proximal Convoluted Tubular Mechanics
Über den Vortrag
Der Vortrag „Proximal Convoluted Tubule (PCT): Proximal Convoluted Tubular Mechanics“ von Carlo Raj, MD ist Bestandteil des Kurses „Diseases of the Nephron“.
Quiz zum Vortrag
Which of the following is the main mechanism of tubular reabsorption of water through water channels?
- In the direction of increasing osmotic pressure
- In the direction of decreasing osmotic pressure
- From high to low hydrostatic pressure
- From low to high hydrostatic pressure
- Against the flow of electrolytes
Which of the following statements about inulin in the proximal convoluted tubule is INCORRECT?
- It is secreted.
- The filtered load equals the excretion rate.
- It is freely filtered.
- It is not reabsorbed.
- Inulin concentration increases along the tubule.
Which of the following locations has the highest hydrostatic pressure under physiologic conditions?
- Afferent arteriole
- Efferent arteriole
- Proximal convoluted tubule
- Glomerulus capillaries
- Bowmans space
Why is inulin a more accurate measure of GFR than creatinine?
- Unlike creatinine, it is not secreted.
- Inulin concentration is proportional to skeletal muscle mass.
- Inulin is completely secreted.
- Creatinine is completely reabsorbed.
- It is synthesized by the kidney.
Which of the following best explains the high oncotic pressure in the peritubular capillaries?
- Blood proteins are not freely filtered.
- Albumin is actively reabsorbed.
- Water is reabsorbed in the collecting ducts.
- Sodium is actively reabsorbed in the proximal convoluted tubule.
- Bicarbonate is primarily reabsorbed in the proximal convoluted tubule.
Which of the following pressure changes increases glomerular filtration?
- Increased hydrostatic pressure in the afferent arteriole.
- Increased oncotic pressure in the afferent arteriole.
- Decreased oncotic pressure in Bowman's space.
- Increased hydrostatic pressure in Bowman’s space.
- None of the options provided increases the glomerular filtration.
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![Renal System [Archive]](https://assets-cdn1.lecturio.de/lecture_collection/image_medium/7484_1545146006.png)
Dozent des Vortrages Proximal Convoluted Tubule (PCT): Proximal Convoluted Tubular Mechanics
Carlo Raj, MD
Dr. Carlo Raj is a Physician and Lecturer at Becker’s Healthcare, in Illinois, USA, and the CEO and founder of Indus Intellect Virtual MedEd, a medical education consulting company.
He obtained his MD from Medical University of the Americas (MUA) and is an international lecturer and public speaker.
Within Lecturio, Dr. Raj teaches courses on Pathology.
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very useful lecture. The graph is very informative and helps one understand renal physiology.
