Topic 13: Peripheral Nervous System

What is the primary difference between the somatic nervous system and the autonomic nervous system?

• Conscious vs. Unconscious control
• Central vs. Peripheral control
• Motor vs. Sensory control
• Voluntary vs. Involuntary control

How many neurons are involved in the autonomic nervous system?

• Five types of neurons
• Three types of neurons

• Two types of neurons
• Only one type of neuron

Which division of the autonomic nervous system helps to increase metabolic rate?

• Sympathetic division
• Central nervous system
• Parasympathetic division
• Somatic division

Tags

NGSS.HS-LS2-5

Heart rate and blood pressure are reduced by this branch of the autonomic nervous system:

• Parasympathetic nervous system
• Somatic nervous system
• Central nervous system
• Sympathetic nervous system

Tags

NGSS.HS-LS1-3

Which neurotransmitter is released within the autonomic ganglion?

• Dopamine
• Norepinephrine
• Acetylcholine
• Serotonin

"Preganglionic fibers are SHORT and postganglionic fibers are LONG." This is characteristic of which branch of the autonomic nervous system?

• Parasympathetic nervous system
• Somatic nervous system
• Central nervous system
• Sympathetic nervous system

"Modified postganglionic sympathetic neurons." This phrase characterizes which cells?

• Cells in the thyroid gland

• Motor neurons
• Chromaffin cells

• Parasympathetic neurons

Neurons that synapse in ganglia close to (or within) target organs are seen within which branch of the autonomic nervous system?

• Parasympathetic
• Central
• Somatic
• Sympathetic

Which neurotransmitter is involved in post-ganglionic parasympathetic fibers?

• Dopamine
• Norepinephrine
• Acetylcholine
• Serotonin

What adrenergic receptor allows for vasoconstriction?

• Alpha-2
• Dopamine
• Beta-1
• Alpha-1