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Question 88

At the glomerulus, a tiny capillary cluster in a nephron, which movement normally begins urine formation?

  1. Small substances filter from blood into the nephronCorrect answer
  2. Blood cells become the main filtrate
  3. Urine is stored inside the glomerulus
  4. Bladder fluid filters back into blood

Explanation

Pressure at the glomerulus filters water and many small dissolved substances out of blood and into the nephron. Blood cells are generally too large to be the main filtrate, and the flow is not from the bladder back into blood.

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Question 88: At the glomerulus, a tiny capillary cluster in a nephron,… · Human Body Systems · Questena