BIO 201 Chapter 15: The Autonomic Nervous System -
Review Questions Grand Canyon University Questions
with 100% Verified Answers Latest Update
Question: Which division of the autonomic nervous system is associated with the
'fight-or-flight' response?
a) Sympathetic division
b) Parasympathetic division
c) Somatic division
d) Central nervous system
Answer:
a) Sympathetic division
Question: What neurotransmitter is released by postganglionic sympathetic fibers?
a) Acetylcholine
b) Norepinephrine
c) Dopamine
d) Serotonin
Answer:
b) Norepinephrine
Question: Which type of receptor is a ligand-gated cation channel?
a) Nicotinic receptor
b) Muscarinic receptor
c) Alpha-adrenergic receptor
d) Beta-adrenergic receptor
Answer:
a) Nicotinic receptor
Question: What is the anatomical basis for referring to the sympathetic division as the
thoracolumbar system?
a) It originates from the thoracic and lumbar spinal cord regions.
b) It originates from the cranial and sacral regions.
c) It is located in the brain stem and sacral spinal cord.
d) It is associated with the digestive system.
Answer:
a) It originates from the thoracic and lumbar spinal cord regions.
Question: Which of the following is NOT a characteristic of the parasympathetic division?
a) Long preganglionic fibers
b) Short postganglionic fibers
, c) Associated with 'rest and digest'
d) Releases norepinephrine at target organs
Answer:
d) Releases norepinephrine at target organs
Question: The sympathetic division of the autonomic nervous system is also known as the
___ system due to its anatomical origin.
Answer:
thoracolumbar
Question: The parasympathetic division is sometimes referred to as the ___ system because
of its origin in the brain stem and sacral spinal cord.
Answer:
craniosacral
Question: In the autonomic nervous system, ___ receptors are G protein-coupled receptors
that bind acetylcholine.
Answer:
muscarinic
Question: Describe the role of the sympathetic division in the autonomic nervous system.
Answer:
The sympathetic division of the autonomic nervous system is responsible for the
'fight-or-flight' response, preparing the body for stressful situations by increasing heart rate,
dilating airways, and redirecting blood flow to essential muscles.
Question: What are the main differences between the sympathetic and parasympathetic
divisions of the autonomic nervous system?
Answer:
The sympathetic division is associated with the 'fight-or-flight' response, has short
preganglionic and long postganglionic fibers, and primarily releases norepinephrine. The
parasympathetic division is associated with 'rest and digest,' has long preganglionic and
short postganglionic fibers, and releases acetylcholine at target organs.
Question: What is the primary difference between somatic and autonomic reflex arcs?
a) Target tissues
b) Presence of ganglia
c) Type of neurotransmitter
d) Location of synapse
Review Questions Grand Canyon University Questions
with 100% Verified Answers Latest Update
Question: Which division of the autonomic nervous system is associated with the
'fight-or-flight' response?
a) Sympathetic division
b) Parasympathetic division
c) Somatic division
d) Central nervous system
Answer:
a) Sympathetic division
Question: What neurotransmitter is released by postganglionic sympathetic fibers?
a) Acetylcholine
b) Norepinephrine
c) Dopamine
d) Serotonin
Answer:
b) Norepinephrine
Question: Which type of receptor is a ligand-gated cation channel?
a) Nicotinic receptor
b) Muscarinic receptor
c) Alpha-adrenergic receptor
d) Beta-adrenergic receptor
Answer:
a) Nicotinic receptor
Question: What is the anatomical basis for referring to the sympathetic division as the
thoracolumbar system?
a) It originates from the thoracic and lumbar spinal cord regions.
b) It originates from the cranial and sacral regions.
c) It is located in the brain stem and sacral spinal cord.
d) It is associated with the digestive system.
Answer:
a) It originates from the thoracic and lumbar spinal cord regions.
Question: Which of the following is NOT a characteristic of the parasympathetic division?
a) Long preganglionic fibers
b) Short postganglionic fibers
, c) Associated with 'rest and digest'
d) Releases norepinephrine at target organs
Answer:
d) Releases norepinephrine at target organs
Question: The sympathetic division of the autonomic nervous system is also known as the
___ system due to its anatomical origin.
Answer:
thoracolumbar
Question: The parasympathetic division is sometimes referred to as the ___ system because
of its origin in the brain stem and sacral spinal cord.
Answer:
craniosacral
Question: In the autonomic nervous system, ___ receptors are G protein-coupled receptors
that bind acetylcholine.
Answer:
muscarinic
Question: Describe the role of the sympathetic division in the autonomic nervous system.
Answer:
The sympathetic division of the autonomic nervous system is responsible for the
'fight-or-flight' response, preparing the body for stressful situations by increasing heart rate,
dilating airways, and redirecting blood flow to essential muscles.
Question: What are the main differences between the sympathetic and parasympathetic
divisions of the autonomic nervous system?
Answer:
The sympathetic division is associated with the 'fight-or-flight' response, has short
preganglionic and long postganglionic fibers, and primarily releases norepinephrine. The
parasympathetic division is associated with 'rest and digest,' has long preganglionic and
short postganglionic fibers, and releases acetylcholine at target organs.
Question: What is the primary difference between somatic and autonomic reflex arcs?
a) Target tissues
b) Presence of ganglia
c) Type of neurotransmitter
d) Location of synapse
