Function of Golgi Tendon Organs [GTOs] in Movement & Exercise

The video tutorial explains the anatomy and function of the Golgi tendon organ (GTO), a sensory receptor located in muscle tendons. It monitors muscle tension and force, sending signals to the brain for proprioceptive feedback. The GTO also plays a crucial role in preventing muscle and tendon damage by triggering a reflex arc that inhibits the contracting muscle and activates the antagonist muscle when excessive force is detected. This reflex helps protect tendons from tearing by reducing muscle force generation.

What is the primary function of the Golgi tendon organ?

• To increase muscle strength

• To monitor muscle tension

• To decrease muscle flexibility

• To contract muscles

Where are Golgi tendon organs located?

• In the skin

• In the bones

• In the tendons of muscles

• In the muscle fibers

How do muscles move the skeleton?

• By rotating and twisting

• By contracting and shortening

• By expanding and lengthening

• By vibrating and oscillating

What happens to collagen fibers when a muscle contracts?

• They break

• They dissolve

• They stretch

• They compress

How does the Golgi tendon organ help in proprioception?

• By increasing muscle size

• By monitoring muscle force

• By enhancing muscle speed

• By reducing muscle fatigue

What triggers the Golgi tendon organ to inhibit muscle contraction?

• Excessive force generation

• Increased muscle temperature

• Excessive muscle relaxation

• Lack of muscle activity

What is the role of the antagonist muscle in the reflex arc?

• To vibrate and stabilize

• To contract and support

• To relax and lengthen

• To compress and protect

What type of reflex is involved in the Golgi tendon organ's protective function?

• Biosynaptic reflex

• Polysynaptic reflex

• Monosynaptic reflex

• Unisynaptic reflex

What happens if a muscle generates too much force?

• The muscle strengthens

• The tendon may tear

• The bone becomes denser

• The muscle relaxes

Which muscle is inhibited in the reflex arc involving the quadriceps?

• Triceps

• Biceps

• Quadriceps

• Hamstrings