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Questions and Answers
What is the primary factor that determines the GFR?
What is the primary factor that determines the GFR?
- Ion balance
- Blood pressure
- Pressure across the glomerular wall (correct)
- Osmotic pressure due to protein concentration in blood
What is the role of vertebrate kidneys in maintaining ion balance?
What is the role of vertebrate kidneys in maintaining ion balance?
- Producing hormones
- Regulating ion concentration in bodily fluids (correct)
- Maintaining osmotic balance
- Regulating blood sugar levels
What is the term used to describe the process of removing nitrogenous wastes and toxins from the body?
What is the term used to describe the process of removing nitrogenous wastes and toxins from the body?
- Ion balancing
- Osmoregulation
- pH regulation
- Excretion (correct)
What is the term used to describe the force that opposes filtration across the glomerular capillary wall?
What is the term used to describe the force that opposes filtration across the glomerular capillary wall?
What is one of the hormonal functions of vertebrate kidneys?
What is one of the hormonal functions of vertebrate kidneys?
What is the main purpose of the glomerular capillary hydrostatic pressure in the glomerular wall?
What is the main purpose of the glomerular capillary hydrostatic pressure in the glomerular wall?
What is the role of vertebrate kidneys in maintaining osmotic balance and water balance?
What is the role of vertebrate kidneys in maintaining osmotic balance and water balance?
How do vertebrate kidneys contribute to the regulation of blood pressure?
How do vertebrate kidneys contribute to the regulation of blood pressure?
What is the significance of oncotic pressure in the glomerular filtration process?
What is the significance of oncotic pressure in the glomerular filtration process?
What is the role of vertebrate kidneys in maintaining pH balance?
What is the role of vertebrate kidneys in maintaining pH balance?
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Study Notes
Glomerular Filtration Rate (GFR) Determinants
- GFR is determined by pressure across the glomerular wall
- Three main forces influence GFR: • Glomerular capillary hydrostatic pressure • Bowman's capsule hydrostatic pressure • Oncotic pressure – osmotic pressure due to protein concentration in blood
Vertebrate Kidney Functions
- Ion balance regulation
- Osmotic balance and water balance regulation
- Blood pressure regulation
- pH balance regulation
- Excretion of nitrogenous wastes (e.g. urea) and toxins
- Hormone production
Glomerular Filtration Rate (GFR) Determinants
- GFR is determined by pressure across the glomerular wall
- Three main forces influence GFR: • Glomerular capillary hydrostatic pressure • Bowman's capsule hydrostatic pressure • Oncotic pressure – osmotic pressure due to protein concentration in blood
Vertebrate Kidney Functions
- Ion balance regulation
- Osmotic balance and water balance regulation
- Blood pressure regulation
- pH balance regulation
- Excretion of nitrogenous wastes (e.g. urea) and toxins
- Hormone production
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