Muscle06/tendon spindle

When muscles are too strongly contracted isometrically (such as when trying to lift a car with the biceps), the tendon and the tendon spindles are stretched. This elicits a reflex inhibition in the activity of that muscle.

Challenge Quiz

1.

Tendon spindle and extrafusal muscles are in parallel sequence  正解! position.

2.

The tendon spindles are stimulated and generate action potentials, when the extrafusal muscles are stretched too strongly contracted isometrically  正解!.

3.

The afferent activity from the tendon organs causes a reflex excitation inhibition  正解! in that muscle.