16.7 - Ultrafiltration Flashcards
Ultrafiltration in the glomerulus Movement of substances from blood into the glomerular filtrate
What is ultrafiltration?
Process by which small molecules like water, glucose, mineral ions, and urea are filtered out of the blood and into the Bowman’s capsule to form glomerular filtrate
What molecules are filtered into the glomular filtrate during ultrafiltration?
- Water
- Salts
- Glucose
- Urea
What molecules remain in the bloodstream during ultrafiltration?
Large molecules
What is the process of ultrafiltration?
Blood enters glomerulus
What is glomerular filtrate?
Liquid part of blood entering Bowman’s capsule
What substances are filtered into glomerular filtrate?
Water
What substances remain in the blood?
Blood cells
Why is reabsorption important?
Retaining nutrients
What is the glomerular filtration rate (GFR)?
Volume of glomerular filtrate formed per minute
What is GFR an indicator of?
Kidney filtration efficiency
