Question

The basic unit of a muscle is _____________? (2 points)
Responses

motor neuron
motor neuron

fast twitch
fast twitch

slow twitch
slow twitch

muscle fiber

Answers

GPT-4o mini
The basic unit of a muscle is **muscle fiber**.
Slow-twitch muscle fibers are used for explosive movements, like sprinting. (2 points)
Responses

True
True

False
GPT-4o mini
**False**. Slow-twitch muscle fibers are not used for explosive movements; they are more suited for endurance activities, such as long-distance running. Explosive movements like sprinting primarily utilize fast-twitch muscle fibers.
A group of muscle fibers is know as a _____________?(2 points)
Responses

slow twitch
slow twitch

motor unit
motor unit

fast twitch
fast twitch

muscle fiber
GPT-4o mini
A group of muscle fibers is known as a **motor unit**.