What is the basic unit of the nervous system?

• Myelin sheath

• Neuron

• Axon

• Dendrite

How many neurons are approximately in the human brain?

• 10 billion

• 50 billion

• 100 billion

• 200 billion

What is the function of the myelin sheath?

• To store neurotransmitters

• To connect neurons

• To protect and speed up signals

• To transmit signals

Which part of the nervous system is composed of the brain and spinal cord?

• Peripheral Nervous System

• Somatic Nervous System

• Central Nervous System

• Autonomic Nervous System

What type of neurons transmit impulses from the spinal cord to muscles?

• Motor Neurons

• Cognitive Neurons

• Interneurons

• Sensory Neurons

Which part of the brain is responsible for muscle coordination and balance?

• Cerebrum

• Cerebellum

• Brainstem

• Motor Cortex

What is the role of the primary motor cortex?

• To regulate autonomic functions

• To connect the brain and spinal cord

• To initiate and control voluntary muscle movements

• To process sensory information

What is the function of the basal ganglia?

• To process visual information

• To act as a gatekeeper for voluntary movement

• To transmit sensory signals

• To control breathing

What is proprioception?

• The ability to sense body position and movement

• The process of learning motor skills

• The coordination of muscle movements

• The transmission of signals between neurons

What is the purpose of spinal reflexes?

• To enable rapid reactions without brain delay

• To process sensory information

• To control voluntary movements

• To enhance cognitive functions