Function Of Central Nervous System

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| By Saramonkey
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Saramonkey
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Quizzes Created: 1 | Total Attempts: 113
Questions: 14 | Attempts: 113

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Nervous System Quizzes & Trivia

Questions and Answers
  • 1. 

    What is the function for each part of the following parts of the central nervous system? 1.regulates breathing,heart rate and blood pressure 2.receives signals from the PNS and sends them to the brain. 3.higher thought, complex cognitive activity medulla, cortex, spinal cord    

    Explanation
    The medulla is responsible for regulating breathing, heart rate, and blood pressure. The cortex is associated with higher thought and complex cognitive activity. The spinal cord receives signals from the peripheral nervous system (PNS) and sends them to the brain.

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  • 2. 

    Indicate which neurotransmitter is associated with which disease. All items will be used once and only once. 1.depression 2.Alzheimer's disease 3. Schizophrenia 4.anxiety 5.Parkinson's diease           low levels of GABA, low levels of dopamine, low lvs of Acetylcholine, low lvls of serotonin, high lvls of dopamine    

    Explanation
    Low levels of serotonin are associated with depression. Low levels of dopamine are associated with Parkinson's disease. Low levels of acetylcholine are associated with Alzheimer's disease. Low levels of GABA are associated with anxiety. High levels of dopamine are associated with schizophrenia.

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  • 3. 

    Neurons and glial cells are the two main types of cells in the nervous system.    

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    The statement is true because neurons and glial cells are indeed the two main types of cells in the nervous system. Neurons are responsible for transmitting electrical signals and are involved in communication and processing of information in the brain. Glial cells, on the other hand, provide support and protection to neurons, as well as help in maintaining the overall functioning of the nervous system. Together, these two types of cells work in coordination to ensure the proper functioning of the nervous system.

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  • 4. 

    Hormones are different from neurotransmitters because hormones are secreted by glands, while neurotransmitters are released from neurons.    

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    Hormones and neurotransmitters are both chemical messengers in the body, but they differ in their mode of release. Hormones are secreted by glands and are typically released into the bloodstream to travel to their target organs or tissues. On the other hand, neurotransmitters are released from neurons and act locally at the synapse to transmit signals between neurons. Therefore, the statement that hormones are secreted by glands and neurotransmitters are released from neurons is true.

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  • 5. 

    A neuron cell body reaches threshold and depolarizes. The action potential spreads down the length of the ______, is chemically transmitted across the ____________, and directly affects the electrical potential in the __________ of the successive neuron.    

    • A.

      Axon,synapse, dendrites

    • B.

      Dendrites,synapse,axon

    • C.

      Myelin,synapse,dendrites

    • D.

      Dendrites,receptor,axon

    Correct Answer
    A. Axon,synapse, dendrites
    Explanation
    When a neuron cell body reaches threshold and depolarizes, the resulting action potential spreads down the length of the axon. At the end of the axon, the action potential reaches the synapse, where it is chemically transmitted across the synaptic gap. This chemical transmission then directly affects the electrical potential in the dendrites of the successive neuron, allowing for the continuation of the signal.

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  • 6. 

    Neurotransmitters cause positive ions to enter the neuron. This process is called_________.    

    • A.

      Polarization

    • B.

      Depolarization

    • C.

      Action potential

    • D.

      Both a b

    Correct Answer
    B. Depolarization
    Explanation
    Depolarization is the process in which positive ions enter the neuron due to the release of neurotransmitters. This causes a change in the electrical charge of the neuron, reducing the negative charge inside the cell and making it more positive. This change in charge initiates an action potential, which is the electrical signal that travels along the neuron. Therefore, depolarization is the correct term to describe the process of positive ions entering the neuron.

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  • 7. 

    Ary Lou has arrived on the set to film a battery commercial. She feels sluggish and tired, so she sends a message to her brain: "Energize me!" In other words, Mary Lou is hoping to increase the amount of what substance in her brain?    

    • A.

      Dopamine

    • B.

      Norepinephrine

    • C.

      Acetylcholine

    • D.

      GABA

    Correct Answer
    B. Norepinephrine
    Explanation
    Mary Lou is feeling sluggish and tired and wants to increase her energy levels. To do this, she sends a message to her brain to "Energize me!" The substance that is responsible for increasing energy levels and alertness in the brain is norepinephrine. Therefore, Mary Lou is hoping to increase the amount of norepinephrine in her brain.

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  • 8. 

    Because her mood improved when she took an anti-depressant, Dr. Mendez surmised that Lucy had low levels of the neurotransmitter    

    • A.

      Acetylcholine

    • B.

      GABA

    • C.

      Glutamate

    • D.

      Serotonin

    Correct Answer
    D. Serotonin
    Explanation
    Dr. Mendez concluded that Lucy had low levels of serotonin because her mood improved when she took an anti-depressant. Serotonin is a neurotransmitter that plays a key role in regulating mood, and low levels of serotonin are associated with depression. The fact that Lucy's mood improved with the use of an anti-depressant suggests that increasing serotonin levels helped alleviate her symptoms.

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  • 9. 

    An EEG lets you look at functioning of the brain based on:    

    • A.

      Magnetic attraction to the iron in blood

    • B.

      A radioactive tag that tracks the use of blood sugar

    • C.

      The electrical energy produced by the neurons

    • D.

      An x-ray of the skull

    Correct Answer
    C. The electrical energy produced by the neurons
    Explanation
    An EEG (electroencephalogram) is a test that measures and records the electrical activity in the brain. Neurons in the brain communicate with each other through electrical impulses, and an EEG can detect and record these electrical signals. By analyzing the patterns and frequencies of the electrical activity, doctors and researchers can gain insights into brain functioning and diagnose various neurological conditions.

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  • 10. 

    A biological psychologist would be most likely to research:      

    • A.

      How you learn a list of words

    • B.

      The developmental process that leads to your ability to learn

    • C.

      The physical and chemical changes that occur when you learn

    • D.

      Why learning deficits occur

    Correct Answer
    C. The physical and chemical changes that occur when you learn
    Explanation
    A biological psychologist focuses on studying the relationship between the brain and behavior. They are interested in understanding how biological processes, such as physical and chemical changes in the brain, influence learning and behavior. Therefore, they would be most likely to research the physical and chemical changes that occur when you learn. This research can help uncover the neural mechanisms involved in learning and provide insights into how to improve learning and treat learning deficits.

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  • 11. 

    This part of the nervous system shuts down unessential systems during the fight or flight process.      

    • A.

      Sympathetic ns

    • B.

      Autonomic ns

    • C.

      Somatic ns

    • D.

      Central ns

    Correct Answer
    A. Sympathetic ns
    Explanation
    The sympathetic nervous system is responsible for activating the fight or flight response in the body. During this process, it shuts down unessential systems to prioritize energy for survival. This includes reducing functions such as digestion and reproduction, while increasing heart rate, blood pressure, and respiration to prepare the body for a potential threat or danger.

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  • 12. 

    Standing on line outside the movie theater, John heard music coming out of someone's radio. Because he liked what he heard, he began to move to the music. Which nervous system allowed him to respond in that way?    

    • A.

      Autonomic

    • B.

      Parasympathetic

    • C.

      Somatic

    • D.

      Sympathetic

    Correct Answer
    C. Somatic
    Explanation
    The somatic nervous system is responsible for voluntary movements and sensory perception. In this scenario, John voluntarily chose to move to the music he heard, indicating that his somatic nervous system allowed him to respond in that way.

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  • 13. 

    Which of the following messages would not come from the hypothalamus?    

    • A.

      I want something to eat

    • B.

      To drink

    • C.

      Watch tv

    • D.

      Have sex

    Correct Answer
    C. Watch tv
    Explanation
    The hypothalamus is responsible for regulating various bodily functions and behaviors, including hunger, thirst, and sexual behavior. However, it does not control activities such as watching TV. This is because watching TV is a voluntary activity that is not directly related to the basic survival needs that the hypothalamus regulates.

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  • 14. 

    Which part of the nervous system are the brain and spinal cord a part of?    

    • A.

      Central

    • B.

      Peripheral

    • C.

      Somatic

    • D.

      Sympathetic

    Correct Answer
    A. Central
    Explanation
    The brain and spinal cord are part of the central nervous system. The central nervous system is responsible for processing and coordinating information and responses within the body. It receives input from the peripheral nervous system and sends out signals to control various bodily functions.

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