Role Of Renin In Blood Pressure Regulation: Mechanism And Physiology

Role Of Renin In Blood Pressure Regulation: Mechanism And Physiology

Question 1. Cystmetrogram
Answer:

• Cystometrogram allows to assess how bladder and sphincter behave while storing urine and while passing urine.
• This test is done for people with urinary incontinence, people who have difficulty with urination, and in people with neurologic diseases that can affect bladder function.
• This test will measure bladder capacity and pressure.
• By doing this one can identify problems such as a small capacity bladder, overactive bladder or high pressure bladder.

Procedure:

• This test will take about 1520 minutes.
• Patient is positioned on an exam table lying on back
• The urethral opening is cleansed with betadine to eliminate any bacteria on the surface.
• A catheter with a sensor is inserted into urethra and advanced into the bladder.
• The bladder is filled with saline solution and filling pressures are recorded.

Question 2. Name two hormones acting on renal tubules.
Answer:

Question 3. Give the volume of urine excreted per day. Mention the three mechanisms Involved in urine formation.
Answer:

Daily urinary output:

• Normally about 11.5 litres of urine is formed per day.

Mechanism of urine formation:

It includes three processes:

• Glomerular filtration
• Tubular reabsorption
• Tubular secretion

Question 4. Role of renin in regulation of blood pressure.
Answer: