What is the effect of gravity on fluid flow in the human body?

Practice Questions

Q1
What is the effect of gravity on fluid flow in the human body?
  1. Increases flow in all positions
  2. Decreases flow in all positions
  3. Varies with body position
  4. Has no effect

Questions & Step-by-Step Solutions

What is the effect of gravity on fluid flow in the human body?
  • Step 1: Understand that gravity is a force that pulls objects towards the Earth.
  • Step 2: Recognize that the human body contains fluids, such as blood and lymph.
  • Step 3: Know that the position of the body (standing, sitting, lying down) affects how gravity acts on these fluids.
  • Step 4: When standing, gravity helps pull blood back to the heart from the legs, which is called venous return.
  • Step 5: In contrast, when lying down, gravity has less effect on blood flow, making it easier for blood to circulate.
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