Urinary System: Glomerular Filtration
1. The filtration membrane consists of BASEMENT MEMBRANE glomerular endothelium, porous
PODICEL membrane, and the CAPILLARY (which contain filtration slits).
This filtration membrane permits (large or small) molecules to be filtered.
2. Glomerular filtration is a process of BULK FLOW driven by the HYDROSTATIC PRESSURE of the
blood.
3. Common components of the filtrate are divided into four categories on the CD program. These include:
1. WATER
2. IONS (Na+, K+)
3. NITROGENOUS WASTER (UREA, URIC, ACIDS)
4. ORGANIC MOLECULES (GLUCOSE, AMINO ACIDS)
4. Blood pressure in the glomerulus is about 60 mmHg.
5. What two pressures oppose filtration and what are their values?
1. CAPSULAR HYDROSTATIC PRESSURE (15mmHg)
2. OSMOTIC PRESSURE OF BLOOD (28mmHg)
6. What is the normal net filtration pressure? 17 mmHg
1. The filtration membrane consists of BASEMENT MEMBRANE glomerular endothelium, porous
PODICEL membrane, and the CAPILLARY (which contain filtration slits).
This filtration membrane permits (large or small) molecules to be filtered.
2. Glomerular filtration is a process of BULK FLOW driven by the HYDROSTATIC PRESSURE of the
blood.
3. Common components of the filtrate are divided into four categories on the CD program. These include:
1. WATER
2. IONS (Na+, K+)
3. NITROGENOUS WASTER (UREA, URIC, ACIDS)
4. ORGANIC MOLECULES (GLUCOSE, AMINO ACIDS)
4. Blood pressure in the glomerulus is about 60 mmHg.
5. What two pressures oppose filtration and what are their values?
1. CAPSULAR HYDROSTATIC PRESSURE (15mmHg)
2. OSMOTIC PRESSURE OF BLOOD (28mmHg)
6. What is the normal net filtration pressure? 17 mmHg
