Anatomy Lecture 5: Autonomic Nervous System

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What is the primary function of the autonomic nervous system (ANS)?

To control voluntary skeletal muscle movement

To regulate the activities of internal organs and glands (correct)

To facilitate communication between the central nervous system and the peripheral nervous system

To process and interpret sensory information from the environment

Which of the following is a key difference between the somatic nervous system and the autonomic nervous system?

The somatic nervous system uses acetylcholine as its neurotransmitter, while the autonomic nervous system uses norepinephrine.

The somatic nervous system is under voluntary control, while the autonomic nervous system is under involuntary control.

The somatic nervous system innervates skeletal muscle, while the autonomic nervous system innervates cardiac muscle, smooth muscle, and glands.

The somatic nervous system has only one neuron between the central nervous system and the effector organ, while the autonomic nervous system has two neurons. (correct)

What is the primary function of the preganglionic neurons in the autonomic nervous system?

To transmit sensory information from the internal organs to the central nervous system

To release acetylcholine and stimulate the postganglionic neurons in the autonomic ganglia (correct)

To receive and process signals from the central nervous system and relay them to the effector organs

To synthesize and release norepinephrine, the primary neurotransmitter of the autonomic nervous system

Which division of the autonomic nervous system is primarily responsible for the 'rest and digest' functions of the body?

The parasympathetic nervous system Signup and view all the answers

Which type of neuron in the autonomic nervous system has a cell body located in the central nervous system and projects to the autonomic ganglia?

Preganglionic neuron Signup and view all the answers

What is the primary function of the visceral afferent fibers in the autonomic nervous system?

To relay sensory information from the internal organs to the central nervous system Signup and view all the answers

Which of the following is a key characteristic of the postganglionic neurons in the autonomic nervous system?

They project directly to the effector organs without synapsing in the autonomic ganglia. Signup and view all the answers

How do the preganglionic and postganglionic neurons in the autonomic nervous system differ in terms of myelination?

Preganglionic neurons are heavily myelinated, while postganglionic neurons are lightly myelinated. Signup and view all the answers

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

The sympathetic nervous system Signup and view all the answers

What is the primary neurotransmitter released by the postganglionic neurons in the parasympathetic division of the autonomic nervous system?

Acetylcholine Signup and view all the answers

Which of the following is a key difference between the sympathetic and parasympathetic divisions of the autonomic nervous system?

The sympathetic division is responsible for the 'rest and digest' functions, while the parasympathetic division is responsible for the 'fight or flight' response. Signup and view all the answers

Anatomy Lecture 5: Autonomic Nervous System

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Questions and Answers

What is the primary function of the autonomic nervous system (ANS)?

Which of the following is a key difference between the somatic nervous system and the autonomic nervous system?

What is the primary function of the preganglionic neurons in the autonomic nervous system?

Which division of the autonomic nervous system is primarily responsible for the 'rest and digest' functions of the body?

Which type of neuron in the autonomic nervous system has a cell body located in the central nervous system and projects to the autonomic ganglia?

What is the primary function of the visceral afferent fibers in the autonomic nervous system?

Which of the following is a key characteristic of the postganglionic neurons in the autonomic nervous system?

How do the preganglionic and postganglionic neurons in the autonomic nervous system differ in terms of myelination?

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

What is the primary neurotransmitter released by the postganglionic neurons in the parasympathetic division of the autonomic nervous system?

Which of the following is a key difference between the sympathetic and parasympathetic divisions of the autonomic nervous system?

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ANS : Lecture 15

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