Which receptor responds when you stretch your arm out to catch an object?
A) Muscle spindle
B) Golgi tendon organ
C) Intrafusal fiber
D) Dermatome

Question

Quizplus · Accepted Answer

The muscle spindle is the receptor that responds when you stretch your muscles while reaching out to catch an object. It is responsible for sensing changes in muscle length and is sensitive to the rate and degree of muscle stretch. The Golgi tendon organ and intrafusal fiber are also types of muscle receptors, but they do not respond specifically to stretching during reaching movements. Dermatome is a term used to describe different regions of the skin that are supplied by different spinal nerves and is not related to muscle stretching.

Which Receptor Responds When You Stretch Your Arm Out to Catch