The Nervous System - Body’s Communication

The video explains the nervous system's role in controlling body processes, from simple reflexes to complex thoughts. It describes how the system detects and responds to stimuli, both external and internal. The central nervous system, comprising the brain and spinal cord, and the peripheral nervous system, which connects to the rest of the body, are detailed. The peripheral system includes the autonomic system for involuntary functions and the somatic system for voluntary actions. Neural pathways facilitate responses and complex behaviors.

What is the primary role of the nervous system?

• To regulate the body's temperature

• To control all body processes and actions

• To produce hormones

• To digest food

Which part of the nervous system includes the brain and spinal cord?

• Peripheral nervous system

• Autonomic nervous system

• Central nervous system

• Somatic nervous system

What does the peripheral nervous system connect?

• The heart to the lungs

• The brain and spinal cord to the rest of the body

• The brain to the spinal cord

• The muscles to the bones

Which system controls involuntary functions like heart rate and digestion?

• Central nervous system

• Somatic system

• Peripheral nervous system

• Autonomic system

How do sensory and motor neurons interact in the simplest reflex action?

• Motor neurons detect stimuli and send signals to the spinal cord

• Sensory neurons send signals to the brain, which then instructs muscles

• Motor neurons send signals to sensory neurons to detect stimuli

• Sensory neurons carry impulses to the spinal cord, which sends signals to motor neurons to contract muscles