Nervous System

What are the two main structural divisions of the nervous system?

• Central Nervous System and Autonomic Nervous System

• Somatic Nervous System and Peripheral Nervous System

• Central Nervous System and Peripheral Nervous System

• Sympathetic Nervous System and Parasympathetic Nervous System

Which part of the hindbrain is primarily responsible for regulating vital involuntary functions like breathing, blood pressure, and heart rate?

• Pons

• Cerebellum

• Medulla

• Midbrain

Which division of the peripheral nervous system is responsible for voluntary actions and somatic reflexes involving skeletal muscles?

• Autonomic Nervous System (ANS)

• Sympathetic Nervous System

• Somatic Nervous System (SNS)

• Parasympathetic Nervous System

What part of a neuron typically receives signals from other cells?

• Axon

• Cell Body

• Dendrites

• Axon Terminals

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Which of the following is a function of glial cells?

• Producing cerebrospinal fluid

• Generating action potentials

• Transmitting signals between neurons

• Forming the central nervous system's main communication network

What is the typical electrical charge inside a neuron at its resting potential compared to its surroundings?

• More positive

• More negative

• Neutral

• Constantly fluctuating

What event primarily causes depolarization in a neuron's axon?

• Potassium ions flooding out of the cell

• Sodium ions flooding into the cell

• Chloride ions entering the cell

• Anions leaving the cell

What is the primary role of neurotransmitters in neuronal communication?

• To insulate the axon and speed up signal transmission

• To maintain the neuron's resting potential

• To transmit signals across the synaptic cleft to another neuron

• To generate action potentials within the same neuron