Urinary System: Glomerelar Filtration l. what force drives filtration·t the glom

Question

Urinary System: Glomerelar Filtration l. what force drives filtration·t the glomerulus? 2 Glomerular filtration is a process of driven by the of the blood. 3. Common compoeents of the filtrale are divided into four categories on the CD program. These inclade 3. 4. 4. Blood pressure in the glomerulus is about mmg 5. What two pressures oppose filtration and what are their values? 2. 6. What is the normal net filtration pressure? mmHg 7. With a glomerular filltrtion rate of 125 ml/min, how mach plasma would be filtered per day In 24 hours? 8. In an exercising individual the afferent arteriole will (dilate or constrict) to avoid excess fluid loss. 9. Two mechanisms that provide sutoregulatory control over renal processes include 10. High osmolarity (or high Na" and CI) in the ascending loop of Henle will cause affierent arterioleso (dilate or constrict) by releasing I1. In periods of extreme stress, the sympathetic nervous system will override autoregulation. An increase in sympathetic flow to the kidney will result in what two important effects that will sid maintenance of blocd pressure?

Explanation / Answer

1. a) Hydrostatic pressure in Bowman's capsule

b) Glomerular Capillary Pressure

c) Colloidal Osmotic pressure

2.glomerular filtration is a process of ultrafiltration driven by the Hydrostatic pressure of the blood.

3.a) Organic molecules

b) Nitrogenous waste

c) ions

d) water

4. 45-70 mm of Hg (60 mm of Hg)

5.a) Colloidal Osmotic pressure - 25 mm of Hg

b) Hydrostatic pressure in Bowman's capsule - 15 mm of Hg

6.Net filtration pressure= Glomerular Capillary Pressure-(Colloidal Osmotic pressure+Hydrostatic pressure in Bowman's capsule)= 20 mm of Hg

7. the amount will be 180 ml/day

6. severe constriction to avoid excessive fluid loss(under strong sympathetic stimulation)

7. a) myogenic response

b) Tubuloglomerular Feedback(mainly by Macula Densa)

8. this question is quite indistinct. Can not see it properly.please try again.

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