Nervous System Chapter 15

2.

Which division of the Autonimic Nervous system operates under conditions of stress emergency!

Parasympathetic
Sympathetic

Correct Answer

A. Sympathetic

Explanation

The sympathetic division of the Autonomic Nervous System operates under conditions of stress and emergency. It is responsible for the body's "fight or flight" response, which prepares the body to react to dangerous or stressful situations. This response involves increased heart rate, elevated blood pressure, dilated pupils, and increased blood flow to the muscles, among other physiological changes. The sympathetic division helps the body respond quickly and effectively to threats or stressful situations.

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3.

Which system is "fight or flight"?

Sympathetic
Parasympathetic

Correct Answer

A. Sympathetic

Explanation

The "fight or flight" response is a physiological reaction to stress or danger, preparing the body for action. The sympathetic nervous system is responsible for activating this response, increasing heart rate, dilating blood vessels, and releasing stress hormones like adrenaline. The parasympathetic nervous system, on the other hand, is responsible for the body's rest and digest response, promoting relaxation and conserving energy. Therefore, the correct answer is sympathetic.

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4.

Which system maintains body functions?

Sympathetic
Parasympathetic

Correct Answer

A. Parasympathetic

Explanation

The parasympathetic system is responsible for maintaining body functions. It is a division of the autonomic nervous system that promotes rest, relaxation, and digestion. It helps regulate heart rate, breathing, digestion, and other essential functions while the body is at rest. The parasympathetic system works in opposition to the sympathetic system, which is responsible for the body's fight or flight response.

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5.

Which system operates under normal conditions?

Sympathetic
Parasympathetic

Correct Answer

A. Parasympathetic

Explanation

The parasympathetic system operates under normal conditions. This system is responsible for promoting rest, relaxation, and digestion. It helps to conserve energy and restore the body to a balanced state after periods of stress or activity. In contrast, the sympathetic system is responsible for the "fight or flight" response, which is activated during times of stress or danger.

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6.

Which system arises from the thoracic and lumbar region?

Sympathetic
Parasympathetic

Correct Answer

A. Sympathetic

Explanation

The sympathetic nervous system arises from the thoracic and lumbar region. It is responsible for the "fight or flight" response, which prepares the body for action in response to stress or danger. This system increases heart rate, dilates blood vessels, and releases adrenaline, among other effects.

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7.

In which system is the synaspe in the paravertebral ganglia close to the vertebral column?

Sympathetic
Parasympathetic

Correct Answer

A. Sympathetic

Explanation

The synapse in the paravertebral ganglia is close to the vertebral column in the sympathetic system. This is because the sympathetic nervous system is responsible for the fight-or-flight response, which involves preparing the body for intense physical activity or stress. The paravertebral ganglia, also known as sympathetic chain ganglia, are located near the spinal cord and are part of the sympathetic division. Therefore, the correct answer is the sympathetic system.

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8.

Which system arises from the brainstem and the sacral region?

Sympathetic
Parasympathetic

Correct Answer

A. Parasympathetic

Explanation

The parasympathetic system arises from the brainstem and the sacral region. It is responsible for conserving energy and promoting rest and digestion. It helps to slow down the heart rate, increase digestion, and promote relaxation. This system works in opposition to the sympathetic system, which is responsible for the fight or flight response.

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9.

Which system is the synaspe in the gaglia?

Sympathetic
Parasympathetic

Correct Answer

A. Parasympathetic

Explanation

The correct answer is Parasympathetic. The question is asking about the system in which the synapse occurs in the "gaglia" (likely a typo for "ganglia"). The parasympathetic system is responsible for rest and digest functions, and it uses ganglia to transmit signals between neurons. Therefore, the synapse occurs in the parasympathetic system.

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10.

Which system does the the ganglia lie ontop of the organ?

Sympathetic
Parasympathetic

Correct Answer

A. Parasympathetic

Explanation

The ganglia lie on top of the organ in the parasympathetic system. The parasympathetic system is responsible for rest and digest activities, and it helps regulate the body's internal functions during periods of relaxation. Ganglia are clusters of nerve cell bodies that are involved in transmitting signals between the central nervous system and the peripheral nervous system. Therefore, it makes sense that the ganglia would be located on top of the organ in the parasympathetic system to facilitate the transmission of signals and control organ functions.

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11.

Actetylcholine and Norephinephrine are examples of what

Autonomic Nerve Fiber
Hormones
Autonomic Neurotransmitter

Correct Answer

A. Autonomic Neurotransmitter

Explanation

Acetylcholine and norepinephrine are both examples of autonomic neurotransmitters. Autonomic neurotransmitters are chemicals that transmit signals between nerve cells in the autonomic nervous system, which regulates involuntary bodily functions such as heart rate, digestion, and breathing. Acetylcholine is primarily involved in the parasympathetic division of the autonomic nervous system, while norepinephrine is primarily involved in the sympathetic division. These neurotransmitters play a crucial role in maintaining balance and coordinating the activities of different organs and systems in the body.

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12.

Actetylcholine is released by (check all that apply)

Preganglionic Fibers
Postganglionic Fibers
Chollnergic Fibers
Sympathetic postganglionic Fibers

Correct Answer(s)

A. Preganglionic Fibers
A. Postganglionic Fibers
A. Chollnergic Fibers

Explanation

Acetylcholine is a neurotransmitter that is released by preganglionic fibers, postganglionic fibers, and cholinergic fibers. Preganglionic fibers are responsible for transmitting signals from the central nervous system to the autonomic ganglia, where acetylcholine is released. Postganglionic fibers, on the other hand, transmit signals from the ganglia to the target organs or tissues, also releasing acetylcholine. Cholinergic fibers refer to nerve fibers that release acetylcholine as their primary neurotransmitter. Therefore, all three options mentioned in the answer are correct.

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13.

Norephinephrine is released by (check all that apply)

Preganglionic Fibers
Postganglionic Fibers
Chollnergic Fibers
Sympathetic postganglionic Fibers

Correct Answer

A. Sympathetic postganglionic Fibers

Explanation

Norepinephrine is released by sympathetic postganglionic fibers. These fibers are part of the sympathetic nervous system, which is responsible for the "fight or flight" response. When the body is under stress or in a dangerous situation, the sympathetic nervous system is activated and releases norepinephrine into the bloodstream. Norepinephrine helps to increase heart rate, constrict blood vessels, and raise blood pressure, preparing the body for action.

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14.

Which divisions release acetylcholine?

Sympathetic
Parasympathetic
Both

Correct Answer

A. Both

Explanation

Both the sympathetic and parasympathetic divisions release acetylcholine. Acetylcholine is a neurotransmitter that is involved in various physiological processes in the body. In the parasympathetic division, acetylcholine is released at the postganglionic synapses, where it acts on target organs to promote rest and digestion. In the sympathetic division, acetylcholine is released at the preganglionic synapses, where it activates the release of norepinephrine, another neurotransmitter involved in the "fight or flight" response. Therefore, both divisions play a role in the release of acetylcholine.

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15.

Autonomic activity is controlled by reflex centers in the

Brain
Spinal chord
Nueron
Both A and B

Correct Answer

A. Both A and B

Explanation

The autonomic activity is controlled by reflex centers in both the brain and the spinal cord. The brain and the spinal cord are both part of the central nervous system and play a crucial role in regulating and coordinating autonomic functions such as heart rate, blood pressure, digestion, and respiration. Reflex centers in the brain and spinal cord receive sensory information and send out appropriate motor responses to maintain homeostasis and respond to external stimuli. Therefore, both A (brain) and B (spinal cord) are involved in controlling autonomic activity.

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Nervous System Chapter 15

Whic system has the task of maintianing homeostasis in the body without concious effort?

Quiz Preview

Which division of the Autonimic Nervous system operates under conditions of stress emergency!

Which system is "fight or flight"?

Which system maintains body functions?

Which system operates under normal conditions?

Which system arises from the thoracic and lumbar region?

In which system is the synaspe in the paravertebral ganglia close to the vertebral column?

Which system arises from the brainstem and the sacral region?

Which system is the synaspe in the gaglia?

Which system does the the ganglia lie ontop of the organ?

Actetylcholine and Norephinephrine are examples of what

Actetylcholine is released by (check all that apply)

Norephinephrine is released by (check all that apply)

Which divisions release acetylcholine?

Autonomic activity is controlled by reflex centers in the