The Vertebrate Kidney

The Vertebrate kidney
Nephrons
- vertebrate excretory tubules
- - Collected into kidneys
- - 20% of blood pumped by each heartbeat enters kidneys
Anatomy of Excretory System/ Structure of Nephron
Approx. 1 million __ per kidney.
-  Filtrate = __ and other small molecules that pass into __
-  kidneys process __ per day; all but__ reabsorbed.
-  Filtrate in __ now called __.
- nephrons (renal tubules)
- water + salts, urea
- renal tubule (nephron)
- 180L filtrate
- 1.5L
- collecting ducts
- urine
__ have reduced __ and are confined to __(80% of nephrons).
- __ have long loops that extend into the __and are found only in mammals and birds (__).
- Materials exchanged between __ and __ through __/
- Cortical nephrons
- loops of Henle
- cortex
- Juxtamedullary nephrons
- medulla
- 20% of nephrons
- capillaries and nephrons
- interstitial fluid.
Explain filtrate

When it leaks out of the capillaries, it is called filtrate; it has no blood or proteins; it has collected into the Bowman’s Capsule and this capsule drains into a tube taking it away
Examples of nutrients:
- glucose
- amino acids
What is blood osmolarity

300 milliosmolar
What is osmolarity

moles of solute per liter of solution

Author

DesLee26

216878

Card Set

The Vertebrate Kidney

Description

FINAL

Updated

2013-05-01T00:53:44Z

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