Autonomic Nervous System Kehl

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What is the main function of the motor (efferent) division of the nervous system?

To transmit impulses from the brain to the muscles and glands (correct)

To transmit impulses from the sensory organs to the brain

To transmit impulses from the brain to the sensory organs

To transmit impulses from the muscles and glands to the brain

What are the three main branches that a spinal nerve divides into shortly after exiting the intervertebral foramen?

Sensory ramus, motor ramus, and communicating ramus

Dorsal ramus, ventral ramus, and communicating ramus (correct)

Afferent ramus, efferent ramus, and connecting ramus

Anterior ramus, posterior ramus, and connecting ramus

What type of information is carried by the dorsal ramus of a spinal nerve?

Neither sensory nor motor information

Only motor information

Both sensory and motor information (correct)

Only sensory information

What is the function of a nerve plexus?

To ensure that all parts of the body are innervated (B) Signup and view all the answers

What are the root values of the phrenic nerve?

C5, C6, C7 (B) Signup and view all the answers

What is the difference between the somatic and autonomic subdivisions of the motor nervous system?

Both a and b (C) Signup and view all the answers

What is the main function of the Autonomic Nervous System (ANS)?

To control involuntary bodily functions (D) Signup and view all the answers

How many neurons make up the two-neuron system of the Autonomic Nervous System?

At least two neurons (D) Signup and view all the answers

Which division of the ANS is responsible for the 'fight-or-flight' response?

Sympathetic Nervous System (C) Signup and view all the answers

Where are the cell bodies of the preganglionic neurons located in the Parasympathetic Nervous System?

In the brainstem and sacral region of the spinal cord (C) Signup and view all the answers

Where are the cell bodies of the postganglionic neurons located in the Sympathetic Nervous System?

In the cervical, thoracic, and abdominal ganglia separate from the target organs (C) Signup and view all the answers

What is the relationship between the preganglionic and postganglionic neurons in the Sympathetic Nervous System?

The preganglionic neuron synapses on a postganglionic neuron in a remote ganglion, not necessarily the closest one. (D) Signup and view all the answers

What is the function of the parasympathetic division of the autonomic nervous system?

Maintain homeostasis and rest and digest functions (D) Signup and view all the answers

How many neurons are involved in the autonomic motor circuit?

2 neurons (A) Signup and view all the answers

Which of the following is NOT a part of the peripheral nervous system (PNS)?

Spinal cord (A) Signup and view all the answers

Which division of the nervous system controls voluntary movements of skeletal muscles?

Somatic efferent division (D) Signup and view all the answers

What is the primary function of the sympathetic division of the autonomic nervous system?

Prepare the body for fight or flight responses (B) Signup and view all the answers

Which of the following is NOT a part of the spinal nerves?

12 cranial nerves (A) Signup and view all the answers

What is the primary function of the parasympathetic division of the autonomic nervous system?

To promote rest, digestion, and homeostasis (C) Signup and view all the answers

What is the difference between the somatic and autonomic subdivisions of the motor nervous system?

Somatic motor nerves innervate voluntary skeletal muscles, while autonomic motor nerves innervate involuntary smooth and cardiac muscles. (D) Signup and view all the answers

Which division of the autonomic nervous system is responsible for the 'fight-or-flight' response?

Sympathetic division (D) Signup and view all the answers

How many neurons are involved in the autonomic motor circuit?

2 (C) Signup and view all the answers

Where are the cell bodies of the postganglionic neurons located in the Parasympathetic Nervous System?

In the terminal ganglia on the structures innervated (B) Signup and view all the answers

What is the relationship between the preganglionic and postganglionic neurons in the Sympathetic Nervous System?

The preganglionic neurons have their cell bodies in the gray matter of the spinal cord, while the postganglionic neurons have their cell bodies in a peripheral ganglion. (D) Signup and view all the answers

Which division of the Autonomic Nervous System controls the 'fight or flight' response?

Sympathetic Nervous System (A) Signup and view all the answers

What is the function of a nerve plexus?

To distribute and rearrange nerve fibers, allowing for the innervation of a larger area of the body. (C) Signup and view all the answers

Where are the nerve cell bodies of post-ganglionic neurons located in the Sympathetic Nervous System?

In identifiable cervical, thoracic, or abdominal ganglia (D) Signup and view all the answers

What is the main function of the Parasympathetic Nervous System?

Rest and digest - homeostasis (D) Signup and view all the answers

Which region of the spinal cord houses the cell bodies of pre-ganglionic neurons in the Parasympathetic Nervous System?

Sacral region (B) Signup and view all the answers

What is characteristic of a preganglionic sympathetic axon synapsing on a postganglionic cell body in the Sympathetic Nervous System?

Synapses on a cell body in a remote ganglion, not necessarily in the closest one (C) Signup and view all the answers

Which of the following structures carries both sensory and motor information?

Ramus communicans (B) Signup and view all the answers

What is the primary function of a nerve plexus?

To ensure that all parts of the body are innervated (D) Signup and view all the answers

Which of the following is NOT a root value of the phrenic nerve?

C4 (C) Signup and view all the answers

What is the primary function of the somatic subdivision of the motor nervous system?

To innervate voluntary skeletal muscles (A) Signup and view all the answers

Which of the following statements about the autonomic nervous system is correct?

It deals with the automatic control of body functions (C) Signup and view all the answers

What type of information does the dorsal ramus of a spinal nerve carry?

Both sensory and motor information to and from the epaxial structures (B) Signup and view all the answers

What is the primary function of the sympathetic division of the autonomic nervous system?

To control the 'fight or flight' response (B) Signup and view all the answers

How many neurons are involved in the autonomic motor circuit?

Two neurons (C) Signup and view all the answers

Where are the cell bodies of the postganglionic neurons located in the Parasympathetic Nervous System?

In ganglia close to or within the target organ (B) Signup and view all the answers

What is the function of a nerve plexus?

To distribute and organize the nerves that innervate a region of the body (B) Signup and view all the answers

Which division of the Autonomic Nervous System controls the 'fight or flight' response?

Sympathetic Nervous System (D) Signup and view all the answers

What is the main function of the Parasympathetic Nervous System?

To control the 'rest and digest' functions of the body (D) Signup and view all the answers

Where are the cell bodies of postganglionic neurons located in the Sympathetic Nervous System?

In the terminal ganglia on the structures innervated (D) Signup and view all the answers

Which division of the Autonomic Nervous System is often referred to as the 'craniosacral system'?

Parasympathetic Nervous System (D) Signup and view all the answers

In the Autonomic Nervous System, where does the axon of a preganglionic neuron synapse onto a second autonomic neuron?

In an autonomic ganglion (A) Signup and view all the answers

Which part of the spine houses the nerve cell bodies of post-ganglionic neurons in the Parasympathetic Nervous System?

Sacral region (A) Signup and view all the answers

What is the primary function of a preganglionic sympathetic axon in the Sympathetic Nervous System?

To synapse on a postganglionic cell body in a remote ganglion (D) Signup and view all the answers

Where are the nerve cell bodies of pre-ganglionic neurons located in the Parasympathetic Nervous System?

In the brainstem and sacral region of the spinal cord (C) Signup and view all the answers

What is the purpose of a nerve plexus in the nervous system?

To combine sets of ventral rami of spinal nerves that serve the same area of the body (C) Signup and view all the answers

Which type of muscle tissue is primarily innervated by the Autonomic Nervous System (ANS)?

Involuntary tissues such as smooth muscle and cardiac muscle (C) Signup and view all the answers

What is the primary function of the ventral ramus of a spinal nerve?

Transporting motor and sensory information to and from the rest of the body (B) Signup and view all the answers

How many neurons are involved in the efferent output of the Somatic Nervous System?

One neuron (A) Signup and view all the answers

Which division of the Autonomic Nervous System is responsible for controlling involuntary bodily functions?

Visceral division (D) Signup and view all the answers

Autonomic Nervous System Kehl

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Questions and Answers

What is the main function of the motor (efferent) division of the nervous system?

What are the three main branches that a spinal nerve divides into shortly after exiting the intervertebral foramen?

What type of information is carried by the dorsal ramus of a spinal nerve?

What is the function of a nerve plexus?

What are the root values of the phrenic nerve?

What is the difference between the somatic and autonomic subdivisions of the motor nervous system?

What is the main function of the Autonomic Nervous System (ANS)?

How many neurons make up the two-neuron system of the Autonomic Nervous System?

Which division of the ANS is responsible for the 'fight-or-flight' response?

Where are the cell bodies of the preganglionic neurons located in the Parasympathetic Nervous System?

Where are the cell bodies of the postganglionic neurons located in the Sympathetic Nervous System?

What is the relationship between the preganglionic and postganglionic neurons in the Sympathetic Nervous System?

What is the function of the parasympathetic division of the autonomic nervous system?

How many neurons are involved in the autonomic motor circuit?

Which of the following is NOT a part of the peripheral nervous system (PNS)?

Which division of the nervous system controls voluntary movements of skeletal muscles?

What is the primary function of the sympathetic division of the autonomic nervous system?

Which of the following is NOT a part of the spinal nerves?

What is the primary function of the parasympathetic division of the autonomic nervous system?

What is the difference between the somatic and autonomic subdivisions of the motor nervous system?

Which division of the autonomic nervous system is responsible for the 'fight-or-flight' response?

How many neurons are involved in the autonomic motor circuit?

Where are the cell bodies of the postganglionic neurons located in the Parasympathetic Nervous System?

What is the relationship between the preganglionic and postganglionic neurons in the Sympathetic Nervous System?

Which division of the Autonomic Nervous System controls the 'fight or flight' response?

What is the function of a nerve plexus?

Where are the nerve cell bodies of post-ganglionic neurons located in the Sympathetic Nervous System?

What is the main function of the Parasympathetic Nervous System?

Which region of the spinal cord houses the cell bodies of pre-ganglionic neurons in the Parasympathetic Nervous System?

What is characteristic of a preganglionic sympathetic axon synapsing on a postganglionic cell body in the Sympathetic Nervous System?

Which of the following structures carries both sensory and motor information?

What is the primary function of a nerve plexus?

Which of the following is NOT a root value of the phrenic nerve?

What is the primary function of the somatic subdivision of the motor nervous system?

Which of the following statements about the autonomic nervous system is correct?

What type of information does the dorsal ramus of a spinal nerve carry?

What is the primary function of the sympathetic division of the autonomic nervous system?

How many neurons are involved in the autonomic motor circuit?

Where are the cell bodies of the postganglionic neurons located in the Parasympathetic Nervous System?

What is the function of a nerve plexus?

Which division of the Autonomic Nervous System controls the 'fight or flight' response?

What is the main function of the Parasympathetic Nervous System?

Where are the cell bodies of postganglionic neurons located in the Sympathetic Nervous System?

Which division of the Autonomic Nervous System is often referred to as the 'craniosacral system'?

In the Autonomic Nervous System, where does the axon of a preganglionic neuron synapse onto a second autonomic neuron?

Which part of the spine houses the nerve cell bodies of post-ganglionic neurons in the Parasympathetic Nervous System?

What is the primary function of a preganglionic sympathetic axon in the Sympathetic Nervous System?

Where are the nerve cell bodies of pre-ganglionic neurons located in the Parasympathetic Nervous System?

What is the purpose of a nerve plexus in the nervous system?

Which type of muscle tissue is primarily innervated by the Autonomic Nervous System (ANS)?

What is the primary function of the ventral ramus of a spinal nerve?

How many neurons are involved in the efferent output of the Somatic Nervous System?

Which division of the Autonomic Nervous System is responsible for controlling involuntary bodily functions?

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