Exploring the Divisions of the Nervous System

This video provides a concise overview of the nervous system, highlighting its two main divisions: the central nervous system, comprising the brain and spinal cord, and the peripheral nervous system, which includes nerves throughout the body. The peripheral nervous system is further divided into the somatic nervous system, responsible for voluntary movements, and the autonomic nervous system, which regulates involuntary functions. The autonomic system is subdivided into the sympathetic and parasympathetic systems, which manage the body's fight-or-flight and rest-and-digest responses, respectively.

What are the two main divisions of the nervous system?

• Somatic and Autonomic

• Brain and Spinal Cord

• Central and Peripheral

• Sympathetic and Parasympathetic

What does the central nervous system consist of?

• Somatic and Autonomic Systems

• Brain and Spinal Cord

• Spinal Cord and Nerves

• Brain and Nerves

Which system is responsible for carrying sensory signals to the CNS?

• Autonomic Nervous System

• Peripheral Nervous System

• Somatic Nervous System

• Sympathetic Nervous System

What is the role of the somatic nervous system?

• Regulating heartbeat

• Managing involuntary responses

• Controlling voluntary movements

• Stimulating digestion

Which nervous system is known as the involuntary nervous system?

• Somatic Nervous System

• Central Nervous System

• Autonomic Nervous System

• Peripheral Nervous System

What does the autonomic nervous system regulate?

• Voluntary movements

• Sensory signals

• Muscle contractions

• Internal environment

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Which system is activated during a 'fight or flight' response?

• Parasympathetic Nervous System

• Sympathetic Nervous System

• Somatic Nervous System

• Central Nervous System

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What effect does the parasympathetic nervous system have on the heart rate?

• Irregular heartbeat

• No effect

• Decreases it

• Increases it

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Which subdivision of the peripheral nervous system is associated with 'rest and digest'?

• Central Nervous System

• Parasympathetic Nervous System

• Sympathetic Nervous System

• Somatic Nervous System

Tags

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How does the sympathetic nervous system affect blood pressure in a stressful situation?

• No change

• Fluctuates it

• Lowers it

• Raises it

Tags

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