Reflex & Muscle Spindles

What is a reflex?

are quick, involuntary, stereotyped reactions of glands or muscles to stimulation.

What are reflexes involving skeletal muscle called?

Somatic reflexes.

What are muscle spindles?

are stretch receptors embedded in skeletal muscles that detect changes in muscle length and movement.

Where are muscle spindles located?

are proprioceptors found within skeletal muscles.

What is the structure of muscle spindles?

Muscle spindles consist of seven or eight modified muscle fibers enclosed in a fibrous capsule.

What is the function of muscle spindles?

inform the brain of muscle length and body movements, allowing the brain to send motor commands to control muscle tone, posture, and balance.