10 Questions
What is the primary factor that determines the GFR?
Pressure across the glomerular wall
What is the role of vertebrate kidneys in maintaining ion balance?
Regulating ion concentration in bodily fluids
What is the term used to describe the process of removing nitrogenous wastes and toxins from the body?
Excretion
What is the term used to describe the force that opposes filtration across the glomerular capillary wall?
Oncotic pressure
What is one of the hormonal functions of vertebrate kidneys?
Producing erythropoietin
What is the main purpose of the glomerular capillary hydrostatic pressure in the glomerular wall?
To promote filtration
What is the role of vertebrate kidneys in maintaining osmotic balance and water balance?
Regulation of water reabsorption and excretion
How do vertebrate kidneys contribute to the regulation of blood pressure?
Through the regulation of fluid volume and electrolyte balance
What is the significance of oncotic pressure in the glomerular filtration process?
It opposes filtration
What is the role of vertebrate kidneys in maintaining pH balance?
Regulation of acid and base excretion
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
This quiz covers the determinants of Glomerular Filtration Rate (GFR) and the functions of the vertebrate kidney, including ion balance, osmotic balance, blood pressure regulation, and excretion of waste products.
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