🔬general biology i review

Fusiform

Written by the Fiveable Content Team • Last updated September 2025
Written by the Fiveable Content Team • Last updated September 2025

Definition

Fusiform refers to a spindle-shaped structure that is wider in the middle and tapers at both ends. It is commonly used to describe certain types of muscles and body shapes in animals.

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5 Must Know Facts For Your Next Test

  1. Fusiform muscles are typically involved in movements requiring strength and speed, such as those in the arms and legs.
  2. The biceps brachii in humans is a classic example of a fusiform muscle.
  3. Fusiform body shape can be seen in fast-swimming fish, which helps reduce drag and increase speed.
  4. Fusiform muscles have fibers that run parallel to the length of the muscle, allowing for greater range of motion.
  5. This term also applies to bacteria with a similar spindle shape, although this is less common in basic animal form studies.

Review Questions

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