2.70 Nephron Structure
- Renal Vein
- Carries blood away from kidneys
- Transports it back to the right side of the heart
- Urea removed from the blood
- Has the exact amount of salts and water
- Kidney removes the excess
- Controlled by the brain
- Antidiuretichormone (ADH)
- controls amount of water that is excreted
- Renal Artery
- Supplies blood to the kidneys
- Contains glucose and oxygen
- Must have pressure to filter blood
- Contains urea
- Pelvis
- Region of the kidney in which urine is collected
- Note to remember: P. Elvis
- Ureter
- Carries urine to the bladder
- stays in bladder till excreted
- Medulla
- The inside part of kidney
- Where amount of salt and water is controlled
- Consists of billions of loops of henle
- ADH makes the loops pump more sodium ions
- Very concentrated urine is produced
- Cortex
- Outer part of the kidney
- Where the blood is filtered
- Ultra-filtration
- Only works when blood entering is at a high pressure
- Glomerulus
- Tiny ball of capillaries
- Found in the cortex
- Surrounded by "Browman's capsule"
- Glomeruli leaks
- RBC/WBC/Platelets stay in blood vessels
- Plasma leaks out into the capsules
- Most of the "ultra-filtrate" liquid is re absorbed in the medulla
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