Objective 14

Question 0

Muscle tone occurs in response to?

Answer 0

Due to spinal reflexes that activate groups of motor units alternately in response to input from stretch receptors (muscle spindles)
Example: trunk extensors & trunk flexors while sitting

Question 1

What are the two characteristics of muscle tone?

Answer 1

• Constant, slightly contracted state of all muscles, which does not produce active movements
• ## Keeps the muscles firm, healthy and ready to respond to stimulus