Nervous System Functions and Divisions

The video tutorial explains the nervous system's primary function of communication. It describes how sensory information from the environment and the body is processed by the central nervous system, which consists of the brain and spinal cord. The central nervous system prioritizes this information and sends motor commands to effectors like muscles and glands. The peripheral nervous system, which includes sensory and motor divisions, is also discussed. The motor division is further divided into the somatic (voluntary) and autonomic (involuntary) divisions, with the latter comprising sympathetic and parasympathetic divisions that have opposite effects on the same structures.

What is the primary role of the nervous system?

• To circulate blood

• To communicate information

• To store energy

• To digest food

Which part of the nervous system prioritizes sensory information?

• Peripheral nervous system

• Central nervous system

• Autonomic nervous system

• Somatic nervous system

What is the function of motor commands in the nervous system?

• To process sensory data

• To sense the environment

• To bring about a response

• To store information

What makes up the central nervous system?

• Muscles and bones

• Brain and spinal cord

• Skin and hair

• Heart and lungs

What is the role of the peripheral nervous system?

• To regulate blood pressure

• To bring sensory information in and carry motor information out

• To control voluntary actions

• To process information

What is another name for the sensory division?

• Autonomic division

• Somatic division

• Afferent division

• Efferent division

Which division of the nervous system controls voluntary actions?

• Sympathetic division

• Autonomic division

• Somatic division

• Parasympathetic division

What does the autonomic division control?

• Motor output

• Voluntary actions

• Involuntary actions

• Sensory input

Which division of the autonomic nervous system speeds up bodily functions?

• Parasympathetic division

• Sympathetic division

• Central nervous system

• Somatic division

What is the relationship between the sympathetic and parasympathetic divisions?

• They do not affect the same structures

• They have opposite effects

• They only affect voluntary muscles

• They have the same effects