Muscle Fibers · Histology

Which fiber type would have the highest density of surrounding blood capillaries?

  1. Slow oxidative fibers (Type I)
  2. Fast oxidative-glycolytic fibers (Type IIa)
  3. Fast glycolytic fibers (Type IIb)
  4. Smooth muscle fibers
Show answer and explanation

Correct answer: Slow oxidative fibers (Type I)

Type I fibers require a continuous supply of oxygen and nutrients for oxidative phosphorylation. A rich capillary network ensures efficient gas exchange and metabolic waste removal for these endurance-oriented fibers.

Difficulty: Medium Question 9 of 20

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