Quiz On The Nervous System
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Are you ready to take a quiz on the nervous system? Our nervous system is complex and plays an integral part in control and coordination. With the help of this quiz, not only will you get to test your knowledge of the nervous system, but you will also have a better understanding of its parts, functions, and some other important information. All the best to you with this quiz!
Questions and Answers
- 1.
The nervous system consists of:
- A.
Brain
- B.
Spinal cord
- C.
Nerves
- D.
All of these
Correct Answer
D. All of theseExplanation
The correct answer is "All of these" because the nervous system is made up of the brain, spinal cord, and nerves. The brain is the control center of the nervous system, while the spinal cord acts as a pathway for nerve signals between the brain and the rest of the body. Nerves are the communication lines that transmit signals to and from the brain and spinal cord to different parts of the body. Therefore, all three components are essential for the functioning of the nervous system.Rate this question:
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- 2.
What does our nervous system not do?
- A.
Store water
- B.
Sense the changes internally and externally
- C.
Sense the changes externally
- D.
None of these
Correct Answer
A. Store waterExplanation
The nervous system is responsible for transmitting signals throughout the body and coordinating bodily functions. However, it does not have the ability to store water. This function is primarily carried out by the kidneys and the urinary system. Therefore, the correct answer is that the nervous system does not store water.Rate this question:
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- 3.
Which of these is not a part of a nerve cell?
- A.
Root
- B.
Axon
- C.
Dendrites
- D.
None of these
Correct Answer
A. RootExplanation
A nerve cell, also known as a neuron, consists of several components including the cell body, dendrites, and an axon. The root is not a part of a nerve cell. The root is typically associated with plants and is responsible for anchoring the plant and absorbing water and nutrients from the soil. In the context of nerve cells, the root is not relevant and does not play a role in the structure or function of a neuron.Rate this question:
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- 4.
What is the Myelin Sheath made of?
- A.
Swans' Cells
- B.
Szechuan cells
- C.
Axons
- D.
Schwann cells
Correct Answer
D. Schwann cellsExplanation
The myelin sheath is made of Schwann cells. Schwann cells are a type of glial cell that wrap around and insulate axons in the peripheral nervous system. They form a protective covering called the myelin sheath, which helps to speed up the transmission of electrical impulses along the axon. This insulation allows for faster and more efficient communication between neurons.Rate this question:
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- 5.
What are synapses made of?
- A.
Presynaptic terminal
- B.
Postsynaptic terminal
- C.
Impulses
- D.
Both A & B
Correct Answer
D. Both A & BExplanation
Synapses are the junctions between two neurons where communication occurs. The presynaptic terminal is located at the end of the axon of one neuron and releases neurotransmitters into the synapse. The postsynaptic terminal is located on the dendrite or cell body of the receiving neuron and contains receptors for the neurotransmitters. Therefore, synapses are made up of both the presynaptic terminal and the postsynaptic terminal.Rate this question:
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- 6.
Which of these are the parts of the central nervous system?
- A.
Brain and spinal cord
- B.
Spinal cord and heart
- C.
Heart and brain
- D.
Brain and lungs
Correct Answer
A. Brain and spinal cordExplanation
The central nervous system consists of the brain and spinal cord. These two organs work together to control and coordinate the activities of the body. The brain is responsible for processing information, making decisions, and sending signals to different parts of the body. The spinal cord acts as a communication pathway between the brain and the rest of the body, transmitting signals to and from the brain. Together, the brain and spinal cord form the central command center of the nervous system, playing a crucial role in regulating bodily functions and facilitating communication between different parts of the body.Rate this question:
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- 7.
Cerebrum is
- A.
The smallest part of the brain
- B.
The second largest part of the brain
- C.
The largest part of the brain
- D.
None of these is true.
Correct Answer
C. The largest part of the brainExplanation
The given question is asking about the Cerebrum, and the correct answer is "None of these is true." This means that none of the options provided - smallest part of the brain, second largest part of the brain, or largest part of the brain - accurately describe the Cerebrum. Therefore, the correct answer indicates that the Cerebrum is not the smallest, second largest, or largest part of the brain.Rate this question:
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- 8.
Where is the cerebellum located?
- A.
In the back of the head
- B.
In the front of the head
- C.
In the middle of the head
- D.
None of these is true.
Correct Answer
A. In the back of the headExplanation
The cerebellum is located in the back of the head. It is a small, cauliflower-shaped structure that is positioned at the base of the brain, just above the brainstem. It plays a crucial role in coordinating voluntary movements, maintaining balance, and fine-tuning motor skills. Its location in the back of the head allows it to receive sensory information from the spinal cord and other parts of the brain, and then send out motor signals to control movement and posture.Rate this question:
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- 9.
The Peripheral Nervous System has all of the nerves outside of the Central Nervous System.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
The explanation for the given correct answer is that the peripheral nervous system consists of all the nerves outside of the central nervous system, which includes the nerves that connect the brain and spinal cord to the rest of the body. This system is responsible for transmitting information between the central nervous system and the rest of the body, allowing for the control and coordination of bodily functions. Therefore, it is true that the peripheral nervous system has all of the nerves outside of the central nervous system.Rate this question:
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- 10.
The 12th cranial nerve is pure sensory.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
The 12th cranial nerve, also known as the hypoglossal nerve, is not pure sensory. It is actually a mixed nerve, meaning it contains both sensory and motor fibers. The hypoglossal nerve primarily innervates the muscles responsible for controlling the movements of the tongue. Therefore, the statement that the 12th cranial nerve is pure sensory is incorrect.Rate this question:
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- 11.
The spinal nerves located in the chest area are called Lumbar nerves.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
The statement is false because the spinal nerves located in the chest area are actually called Thoracic nerves, not Lumbar nerves. The thoracic nerves are responsible for transmitting sensory and motor information between the chest and the spinal cord. The lumbar nerves, on the other hand, are located in the lower back region and are responsible for transmitting signals to and from the lower limbs.Rate this question:
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- 12.
There are 41 pairs of spinal nerves that affect sensory, motor, and mixed nerves.
- A.
False
- B.
True
Correct Answer
A. FalseExplanation
The statement that there are 41 pairs of spinal nerves that affect sensory, motor, and mixed nerves is false. In reality, there are 31 pairs of spinal nerves that are responsible for transmitting sensory, motor, and mixed signals throughout the body. These nerves emerge from the spinal cord and are crucial for the functioning of the peripheral nervous system.Rate this question:
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- 13.
Studying the nervous system helps therapists
- A.
Understand the bacteria growth all over our bodies
- B.
Understand the effects stress has on our body
- C.
Understand how nutrition affects our body
- D.
Understand our hormones and their roles in our body
Correct Answer
B. Understand the effects stress has on our bodyExplanation
Studying the nervous system helps therapists understand the effects stress has on our body. The nervous system plays a crucial role in regulating our body's response to stress. It controls the release of stress hormones, such as cortisol, and activates the fight-or-flight response. By studying the nervous system, therapists can gain insights into how stress impacts various bodily functions, such as heart rate, blood pressure, and immune response. This understanding allows them to develop effective strategies and interventions to help individuals manage and cope with stress-related issues.Rate this question:
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- 14.
What are Dendrites in a nerve cell?
- A.
Coated by the Myelin Sheath
- B.
They are Synapses
- C.
They are nerve fibers.
- D.
They are released in times of stress.
Correct Answer
C. They are nerve fibers.Explanation
Dendrites are the branch-like extensions of a nerve cell that receive signals from other nerve cells. They play a crucial role in transmitting electrical impulses towards the cell body, allowing for communication between neurons. These extensions are covered by the myelin sheath, which helps to insulate and protect the dendrites. However, the correct answer is that dendrites are nerve fibers, as they are the elongated projections that make up the main structure of a neuron.Rate this question:
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