ARTERIOLES

• COMPARE ARTERIOLE MUSCLE LAYER TO ARTERIES?

  thicker
• WHY ARE ARTERIOLE MUSCLE LAYER THICKER THAN ARTERIES?

  restrict blood flow into capillaries
• COMPARE ARTERIOLE ELASTIC LAYER TO ARTERIES?

  thinner
• WHY ARE ARTERIOLE ELASTIC LAYERS THINNER THAN ARTERIES?

  pressure is lower
• COMPARE WALL THICKNESS OF ARTERIOLES TO ARTERIES?

  thinner
• WHY DO ARTERIOLES HAVE THINNER WALL THICKNESS THAN ARTERIES?

  pressure is lower
• DO ARTERIOLES HAVE VALVES?

  no