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WorksheetsIntroduction to Nervous System
Total questions: 10
Worksheet time: 6mins
Which of the following are the main components of the Central Nervous System (CNS)?
Nerves throughout the body.
Brain and spinal cord.
Somatic and autonomic nervous systems.
Sensory and motor neurons.
Which function is primarily associated with the cerebellum?
Regulating breathing and heart rate.
Controlling alertness and sleep-wake cycles.
Coordinating balance and movement.
Processing speech and emotions.
The Autonomic Nervous System (ANS) is further divided into which two systems?
Central and Peripheral.
Somatic and Sensory.
Sympathetic and Parasympathetic.
Voluntary and Involuntary.
What is the primary role of the sympathetic nervous system?
Promoting "rest and digest" functions.
Controlling voluntary muscle movements.
Initiating the "fight or flight" response.
Processing sensory information from the skin.
Which of the following is a function of glial cells in the nervous system?
Transmitting electrical signals over long distances.
Producing myelin to insulate axons.
Generating action potentials.
Directly receiving sensory input from the environment.
What is the electrical charge inside a neuron at its resting potential compared to its surroundings?
More positive.
Neutral.
More negative.
Constantly fluctuating between positive and negative.
During the depolarization phase of an action potential, what happens to sodium ions (Na+) in the neuron?
They are actively pumped out of the cell.
They flood into the cell, making the inside more positive.
They remain outside the cell, maintaining a negative charge.
They are converted into potassium ions.
Which statement accurately describes the "all-or-none" principle of an action potential?
The strength of the action potential varies depending on the strength of the stimulus.
An action potential either fires completely or not at all, regardless of stimulus strength once a threshold is met.
Only some neurons can generate an action potential.
Action potentials can be partially generated and then stopped.
Click on the parts of the central nervous system
Click on the parts of the peripheral nervous system
