Nervous System Functions and Responses

This video provides a concise overview of the nervous system, highlighting its organization into central and peripheral systems. The central nervous system, comprising the brain and spinal cord, acts as the body's decision-maker. The peripheral nervous system connects the rest of the body to the central system and is divided into somatic and autonomic systems. The autonomic system further splits into sympathetic and parasympathetic systems, managing stress responses and relaxation. The video emphasizes the paired organization of these systems and their roles in voluntary and involuntary actions.

What are the two main branches of the nervous system?

• Brain and Spinal Cord

• Sympathetic and Parasympathetic

• Somatic and Autonomic

• Central and Peripheral

Which part of the nervous system acts as the decision maker for the body?

• Peripheral Nervous System

• Autonomic Nervous System

• Somatic Nervous System

• Central Nervous System

What is the primary function of the spinal cord?

• Control voluntary behavior

• Main communication system between brain and body

• Regulate involuntary actions

• Manage stress responses

What does the peripheral nervous system consist of?

• Sympathetic and parasympathetic systems

• Connective neural tissue outside the brain and spinal cord

• Brain and spinal cord

• Voluntary and involuntary muscles

Which system is responsible for voluntary movements?

• Somatic Nervous System

• Autonomic Nervous System

• Parasympathetic Nervous System

• Sympathetic Nervous System

What does the autonomic nervous system regulate?

• Brain communication

• Sensory signals

• Involuntary body functions

• Voluntary movements

Which system prepares the body for 'fight or flight'?

• Central Nervous System

• Somatic Nervous System

• Parasympathetic Nervous System

• Sympathetic Nervous System

What happens to the body when the parasympathetic nervous system is activated?

• Body returns to a calm state

• Heart rate increases

• Breathing becomes rapid

• Pupils dilate

Which system decreases digestion during stress?

• Central Nervous System

• Somatic Nervous System

• Sympathetic Nervous System

• Parasympathetic Nervous System

How does the parasympathetic nervous system affect blood flow?

• Decreases blood flow to digestive system

• Increases blood flow to extremities

• Diverts blood to digestive system

• Increases heart rate