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
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
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
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**.