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Human Physiology: Renal Function and Kidney Processes

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Human Physiology: Renal Function and Kidney Processes

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Questions and Answers

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?

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?

Ion balancing

Osmoregulation

pH regulation

Excretion (correct)

What is the term used to describe the force that opposes filtration across the glomerular capillary wall?

Oncotic pressure Signup and view all the answers

What is one of the hormonal functions of vertebrate kidneys?

Producing erythropoietin Signup and view all the answers

What is the main purpose of the glomerular capillary hydrostatic pressure in the glomerular wall?

To promote filtration Signup and view all the answers

What is the role of vertebrate kidneys in maintaining osmotic balance and water balance?

Regulation of water reabsorption and excretion Signup and view all the answers

How do vertebrate kidneys contribute to the regulation of blood pressure?

Through the regulation of fluid volume and electrolyte balance Signup and view all the answers

What is the significance of oncotic pressure in the glomerular filtration process?

It opposes filtration Signup and view all the answers

What is the role of vertebrate kidneys in maintaining pH balance?

Regulation of acid and base excretion Signup and view all the answers

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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Description

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.