The fine, delicate movements of eye muscles are an example of muscles having Blank______ motor unit size.Multiple choice question.smalllarge

Break Down the Problem

1. Identify the correct motor unit size associated with fine, delicate muscle movements.
2. Analyze the characteristics of small and large motor units.

Relevant Concepts

1. Motor Unit: A motor unit consists of a motor neuron and the muscle fibers it innervates.
2. Small Motor Units: Typically associated with fine motor skills, such as those in the eyes and fingers. They involve fewer muscle fibers per motor neuron, allowing for precise control.
3. Large Motor Units: Generally responsible for gross motor movements, such as those found in the legs and back. They consist of many muscle fibers per motor neuron, leading to less precision.

Analysis and Detail

1. Fine movements, such as those of eye muscles, require precision and the ability to control small adjustments.
2. Therefore, they are characterized by small motor unit sizes, which allow for more detailed control over muscle contractions.

Verify and Summarize

Given that fine movements require precision, the eye muscles have small motor unit sizes.

Final Answer

The correct answer is: small.