Nervous System and Muscle Function Quiz

What are neuromuscular adaptations?

• Changes in muscle size due to exercise

• Changes in muscle function due to exercise

• Changes in muscle color due to exercise

• Changes in muscle temperature due to exercise

What is an example of what sensory receptors can sense?

• Muscle length

• Brain activity

• Heart rate

• Blood pressure

Which neurons are responsible for carrying messages to the CNS?

• Motor neurons

• Sensory neurons

• Effector neurons

• Receptor neurons

What does the Autonomic Nervous System control?

• Voluntary, conscious movement

• Involuntary systems of the body

• Memory and learning

• Sensory perception

What is the role of the Parasympathetic Nervous System?

• Initiate 'fight or flight' response

• Control voluntary movements

• Promote 'rest and digest' activities

• Process sensory information

Which system is not part of the Autonomic Nervous System?

• Sympathetic

• Parasympathetic

• Somatic

• None of the above

What type of fibers do small motor units contain?

• Type 1 fibers

• Type 2a fibers

• Type 2b fibers

• Type 3 fibers

What does the 'all or none' law state about motor units?

• Motor units can partially contract.

• Motor units are either fully on or fully off.

• Motor units can contract at varying intensities.

• Motor units never contract.

What is the effect of the 'all or none' law on muscle fibers?

• They contract partially.

• They contract fully or not at all.

• They never contract.

• They contract randomly.

Which motor units are least likely to fatigue quickly?

• Type 1 motor units

• Type 2a motor units

• Type 2b motor units

• Type 3 motor units