Counter Current Multiplier Mechanism

Current Multiplier Mechanism happens at

• renal corpuscle

• loop of Henle

• distal convoluted tubule

• collecting duct

Osmolarity represents

• the concentration of water

• the concentration of solutes

The purposes of CCMM are to create

• hypertonic urine

• Small volume

• the hypertonic medulla

• to conserve more water

What is the importance of reabsorption of NaCl at ascending limb?

• to create hypertonic condition at ascending limb

• to conserve water in our body

• to prepare hypertonic condition surrounding loop of Henle

• to prevent water from diffuse out from descending limb

What kind of molecules are reabsorbed at descending limb?

• NaCl

• Water

• Glucose

• Amino acids

The rats at the desert having _________ loop of Henle, while fishes in the ocean having _________ loop of Henle

• Shorter, longer

• Longer, shorter

The longer the loop of Henle, the urine will become

• more diluted

• more concentrated

Choose the BEST answer.

Why did the NaCl actively transported out at the thick segment ascending limb loop of Henle?

• it requires energy

• NaCl moves from low to high concentration

• to create the hypertonic medulla

Ascending limb loop of Henle is impermeable to

• NaCl

• Water

Based on your understanding of the CCMM process, the movement of water and NaCl also shows __________ process

• Ultrafiltration

• Reabsorption

• Secretion