Nervous System Organization

What are the two subdivisions of the Autonomic Nervous System?

• Parasympathetic

• Sympathetic

What are the neurotransmitters released by the postganglionic fibers of the Autonomic Nervous System?

• Norepinephrine

• Acetylcholine

What are the anatomical differences between the sympathetic and parasympathetic nervous systems?

What are the two parts of the Motor Division of the Peripheral Nervous System?

• Somatic Nervous System

• Autonomic Nervous System

Answer explanation

The two parts of the Motor Division of the Peripheral Nervous System are the Somatic Nervous System and the Autonomic Nervous System.

What is the main difference between the effectors of the Somatic Nervous System and the Autonomic Nervous System?

• Skeletal muscles

• Cardiac muscle, smooth muscle, and glands

Answer explanation

The main difference is that the effectors of the Somatic Nervous System are skeletal muscles, while the effectors of the Autonomic Nervous System are cardiac muscle, smooth muscle, and glands.

What is the main function of the parasympathetic nervous system?

• Rest and digest

• Fight or flight

Answer explanation

The main function of the parasympathetic nervous system is 'Rest and digest', which promotes relaxation and digestion processes in the body.

Which neurotransmitter is primarily used by the sympathetic nervous system?

• Acetylcholine

• Epinephrine

Answer explanation

The correct neurotransmitter primarily used by the sympathetic nervous system is Epinephrine.

What is the role of the enteric nervous system?

• Regulating the digestive system

• Controlling voluntary movements

Answer explanation

The enteric nervous system's role is regulating the digestive system, not controlling voluntary movements.

What is the function of the sympathetic nervous system?

• Rest and digest

• Fight or flight

Answer explanation

The function of the sympathetic nervous system is 'Fight or flight' response, which prepares the body for perceived threats or danger.

Which division of the nervous system controls involuntary functions?

• Somatic Nervous System

• Autonomic Nervous System

Answer explanation

The Autonomic Nervous System controls involuntary functions, such as heart rate and digestion.