Neuroanatomy: Functions of Nervous System
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Questions and Answers

Which division of the nervous system is responsible for carrying conscious sensation from the periphery back to the central nervous system?

  • Autonomic nervous system
  • Peripheral nervous system
  • Somatic nervous system (correct)
  • Visceral nervous system
  • What is the primary function of the sensory receptors present in the skin and organs?

  • Sum up all the data received from the body
  • Generate nerve impulses for motor output
  • Send nerve impulses to the peripheral nervous system
  • Respond to external and internal stimuli by generating nerve impulses to travel to the central nervous system (correct)
  • Where are the sensory receptors, motor endings, nerves, ganglia, cranial nerves, spinal nerves, and the peripheral part of the autonomic nervous system located?

  • Visceral Nervous System
  • Somatic Nervous System
  • Central Nervous System (CNS)
  • Peripheral Nervous System (PNS) (correct)
  • Which part of the nervous system includes the brain, diencephalon, midbrain, pons, cerebellum, and medulla oblongata?

    <p>Central Nervous System (CNS)</p> Signup and view all the answers

    Which type of neurons have an axon and multiple dendrites?

    <p>Multipolar neurons</p> Signup and view all the answers

    What is the counterpart of Schwann cells in the peripheral nerves?

    <p>Oligodendrocytes</p> Signup and view all the answers

    What is the functional unit of the nervous system?

    <p>Reflex arc</p> Signup and view all the answers

    Which cells act like macrophages of the CNS?

    <p>Microglia</p> Signup and view all the answers

    Which cells line the cavities of the CNS?

    <p>Ependymal cells</p> Signup and view all the answers

    Which type of synapse is the most common?

    <p>Axo-dendritic synapse</p> Signup and view all the answers

    What does a monosynaptic reflex consist of?

    <p>Receptor, sensory neuron, motor neuron</p> Signup and view all the answers

    What type of neurons are found in cells of spinal ganglia and mesencephalic nucleus of trigeminal nerve?

    <p>Unipolar neurons</p> Signup and view all the answers

    Which cells are responsible for myelinating tracts?

    <p>Oligodendrocytes</p> Signup and view all the answers

    'Anaxonic' neurons have no axon and are found in which parts of the body?

    <p>The brain and retina.</p> Signup and view all the answers

    What type of cells are counterparts of Schwann cells of peripheral nerves?

    <p>Oligodendrocytes</p> Signup and view all the answers

    What do astrocytes provide for the nervous system?

    <p>Nutrition</p> Signup and view all the answers

    What is the primary function of the axon hillock?

    <p>Initiating the nerve impulse</p> Signup and view all the answers

    Which type of neuron has a dendrite that branches into a dendritic tree?

    <p>Unipolar cells</p> Signup and view all the answers

    Which type of synapse is less common in neuronal communication?

    <p>Somato-somatic synapse</p> Signup and view all the answers

    Where are the dorsal-ventral axes most easily understood?

    <p>In animals with a horizontally running spinal cord</p> Signup and view all the answers

    What is the counterpart of Oligodendrocytes in the peripheral nerves?

    <p>Schwann cells</p> Signup and view all the answers

    What is the structure that lines the cavities of the CNS?

    <p>Ependymal cells</p> Signup and view all the answers

    What is the primary function of Astrocytes in the nervous system?

    <p>Support and provide nutrition to neurons</p> Signup and view all the answers

    What is the functional unit of the nervous system?

    <p>Reflex arc</p> Signup and view all the answers

    Which type of neurons have an axon and multiple dendrites?

    <p>Multipolar neurons</p> Signup and view all the answers

    Which type of neurons are found in dorsal root ganglia and sensory ganglia of cranial nerves?

    <p>Pseudounipolar neurons</p> Signup and view all the answers

    In the nervous system, which division is responsible for carrying involuntary structures such as internal organs, blood vessels, and glands?

    <p>Visceral division</p> Signup and view all the answers

    Which structures are responsible for responding to external and internal stimuli by generating nerve impulses that travel to the central nervous system?

    <p>Sensory receptors</p> Signup and view all the answers

    What are the specific functions of the nervous system according to the provided text?

    <p>Motor Output, Integration, Sensory Input</p> Signup and view all the answers

    Which division of the nervous system includes nerves carrying conscious sensation from the periphery back to the central nervous system?

    <p>Somatic division</p> Signup and view all the answers

    Which part of the nervous system combines and sums up all the data received from the body and sends out nerve impulses?

    <p>Central Nervous System</p> Signup and view all the answers

    Where are sensory receptors, motor endings, nerves, ganglia, and peripheral nerves located in the nervous system?

    <p>Peripheral Nervous System</p> Signup and view all the answers

    Which part of the nervous system is responsible for muscle contractions and gland secretions as responses to stimuli received by sensory receptors?

    <p>Somatic Nervous System</p> Signup and view all the answers

    Which specific part of the Central Nervous System is responsible for combining and summing up all received data from the body?

    <p>Cerebrum</p> Signup and view all the answers

    What are the two divisions of the autonomic nervous system mentioned in the text?

    <p>Sympathetic &amp; Parasympathetic</p> Signup and view all the answers

    Where do nerve impulses from the central nervous system go to produce muscle contractions and gland secretions as responses to stimuli received by sensory receptors?

    <p>Both skeletal and involuntary muscles</p> Signup and view all the answers

    What does the peripheral nervous system include?

    <p>All nervous structures outside CNS</p> Signup and view all the answers

    Which part of the nervous system includes the structures of Cerebrum, diencephalon, midbrain, pons, cerebellum, and medulla oblongata?

    <p>Central Nervous System (CNS)</p> Signup and view all the answers

    What is the primary function of the Peripheral Nervous System (PNS) in the nervous system?

    <p>Carries info to and from the Central Nervous System (CNS)</p> Signup and view all the answers

    Which type of division of the nervous system includes nerves carrying conscious sensation from the periphery back to the CNS and innervating voluntary muscles?

    <p>Somatic Division</p> Signup and view all the answers

    What is the specific function of the autonomic nervous system (ANS) in relation to the internal organs, blood vessels, and glands?

    <p>Involuntary control</p> Signup and view all the answers

    What type of cells are counterparts of Schwann cells in the peripheral nerves?

    <p>Oligodendrocytes</p> Signup and view all the answers

    Where are sensory receptors, motor endings, nerves, ganglia, cranial nerves, spinal nerves, and the peripheral part of the autonomic nervous system located?

    <p>In the Peripheral Nervous System (PNS)</p> Signup and view all the answers

    Which type of neurons are found in cells of spinal ganglia and mesencephalic nucleus of trigeminal nerve?

    <p>Unipolar neurons</p> Signup and view all the answers

    Where do nerve impulses from the central nervous system go to produce muscle contractions and gland secretions as responses to stimuli received by sensory receptors?

    <p>To the effector organs</p> Signup and view all the answers

    'Anaxonic' neurons have no axon and are found in which parts of the body?

    <p>Brain and retina</p> Signup and view all the answers

    What is the primary function of Astrocytes in the nervous system?

    <p>Nutrition of the nervous system</p> Signup and view all the answers

    What is the functional unit of the nervous system?

    <p>Neuron</p> Signup and view all the answers

    What does a monosynaptic reflex consist of?

    <p>A receptor, a sensory neuron, a motor neuron, and an effector</p> Signup and view all the answers

    Which specific part of the Central Nervous System is responsible for combining and summing up all received data from the body?

    <p>Diencephalon</p> Signup and view all the answers

    Which division of the nervous system is responsible for carrying conscious sensation from the periphery back to the central nervous system?

    <p>Somatic Nervous System</p> Signup and view all the answers

    Which part of the nervous system includes the brain, diencephalon, midbrain, pons, cerebellum, and medulla oblongata?

    <p>Central Nervous System (CNS)</p> Signup and view all the answers

    Which division of the nervous system is responsible for controlling involuntary structures such as internal organs, blood vessels, and glands?

    <p>Sympathetic nervous system</p> Signup and view all the answers

    What is the counterpart of Oligodendrocytes in the peripheral nerves?

    <p>Schwann cells</p> Signup and view all the answers

    What type of neurons are found in the dorsal root ganglia and sensory ganglia of cranial nerves?

    <p>Pseudounipolar neurons</p> Signup and view all the answers

    What is the primary function of Astrocytes in the nervous system?

    <p>Providing structural support</p> Signup and view all the answers

    Where are sensory receptors, motor endings, nerves, ganglia, and peripheral nerves located in the nervous system?

    <p>Peripheral Nervous System (PNS)</p> Signup and view all the answers

    What is the specific function of the autonomic nervous system (ANS) in relation to the internal organs, blood vessels, and glands?

    <p>Involuntary control</p> Signup and view all the answers

    'Anaxonic' neurons have no axon and are found in which parts of the body?

    <p>Retina</p> Signup and view all the answers

    'Anaxonic' neurons have no axon and are found in which parts of the body?

    <p>Spinal cord</p> Signup and view all the answers

    What does a monosynaptic reflex consist of?

    <p>A single synapse between sensory and motor neurons</p> Signup and view all the answers

    Which type of synapse is less common in neuronal communication?

    <p>Dendrodendritic synapse</p> Signup and view all the answers

    What are the two divisions of the autonomic nervous system mentioned in the text?

    <p>Sympathetic and parasympathetic division</p> Signup and view all the answers

    Where are the dorsal-ventral axes most easily understood?

    <p>Central Nervous System (CNS)</p> Signup and view all the answers

    What is the counterpart of Oligodendrocytes in the peripheral nerves?

    <p>Schwann cells</p> Signup and view all the answers

    Which type of neurons are found in cells of spinal ganglia and mesencephalic nucleus of trigeminal nerve?

    <p>Multipolar neurons</p> Signup and view all the answers

    What is the primary function of the sensory receptors present in the skin and organs?

    <p>Produce nerve impulses</p> Signup and view all the answers

    Where do nerve impulses from the central nervous system go to produce muscle contractions and gland secretions as responses to stimuli received by sensory receptors?

    <p>Effector organs</p> Signup and view all the answers

    'Anaxonic' neurons have no axon and are found in which parts of the body?

    <p>Brain and retina</p> Signup and view all the answers

    What is the structure that lines the cavities of the CNS?

    <p>Ependymal cells</p> Signup and view all the answers

    Which part of the nervous system combines and sums up all the data received from the body and sends out nerve impulses?

    <p>Diencephalon</p> Signup and view all the answers

    'Axo-dendritic' synapse is most common in neuronal communication. What kind of synapse is less common?

    <p>'Dendro-axonic' synapse</p> Signup and view all the answers

    Which division of the nervous system is responsible for carrying sensory input from the periphery back to the central nervous system and innervating voluntary muscles?

    <p>Somatic Division</p> Signup and view all the answers

    What is the primary function of Oligodendrocytes in the nervous system?

    <p>Producing myelin in the central nervous system</p> Signup and view all the answers

    Where are the motor endings, ganglia, and peripheral nerves located in the nervous system?

    <p>Peripheral Nervous System (PNS)</p> Signup and view all the answers

    What is the counterpart of Astrocytes in the peripheral nervous system?

    <p>Schwann cells</p> Signup and view all the answers

    'Anaxonic' neurons have no axon and are found in which parts of the body?

    <p>Retina</p> Signup and view all the answers

    What is the primary function of Microglia in the nervous system?

    <p>Phagocytosis of microorganisms and debris</p> Signup and view all the answers

    'Axo-somatic' synapse is most common in neuronal communication. What kind of synapse is less common?

    <p>'Dendro-dendritic' synapse</p> Signup and view all the answers

    'Axo-dendritic' synapse is most common in neuronal communication. What kind of synapse is less common?

    <p>'Dendro-somatic' synapse</p> Signup and view all the answers

    'Axo-axonic' synapse is less common in neuronal communication. What kind of synapse is most common?

    <p>'Axo-somatic' synapse</p> Signup and view all the answers

    Which part of the nervous system includes the structures such as cerebrum, diencephalon, midbrain, pons, and cerebellum?

    <p>Central Nervous System (CNS)</p> Signup and view all the answers

    What is the primary function of Satellite cells in the nervous system?

    <p>Support and protect neuron cell bodies</p> Signup and view all the answers

    Where do sensory receptors and nerves carry information to and from in the nervous system?

    <p>Central Nervous System (CNS)</p> Signup and view all the answers

    In the CNS, which of the following describes the ROSTRAL-CAUDAL AXIS?

    <p>Runs from nose to tail</p> Signup and view all the answers

    What is the primary function of the axon hillock?

    <p>Originates the axon (nerve fibre)</p> Signup and view all the answers

    Which type of neurons are found in dorsal root ganglia and sensory ganglia of cranial nerves?

    <p>Unipolar neurons</p> Signup and view all the answers

    What is the counterpart of Oligodendrocytes in the peripheral nerves?

    <p>Schwann cells</p> Signup and view all the answers

    Which part of the nervous system is responsible for muscle contractions and gland secretions as responses to stimuli received by sensory receptors?

    <p>Peripheral Nervous System (PNS)</p> Signup and view all the answers

    'Axo-dendritic' synapse is most common in neuronal communication. What kind of synapse is less common?

    <p>'Axo-axonal' synapse</p> Signup and view all the answers

    'Anaxonic' neurons have no axon and are found in which parts of the body?

    <p>Brain and retina</p> Signup and view all the answers

    'Axo-somatic' synapse is most common in neuronal communication. What kind of synapse is less common?

    <p>'Axo-axonal' synapse</p> Signup and view all the answers

    'Axo-dendritic' synapse is most common in neuronal communication. What kind of synapse is less common?

    <p>'Axo-axonal' synapse</p> Signup and view all the answers

    What is the primary function of Microglia in the nervous system?

    <p>Acts like macrophages of the CNS</p> Signup and view all the answers

    What is the primary function of Astrocytes in the nervous system?

    <p>Supporting and nourishing neurons</p> Signup and view all the answers

    In the CNS, which part is responsible for combining and summing up all the data received from the body and sending out nerve impulses?

    <p>Diencephalon</p> Signup and view all the answers

    Which type of neurons are found in cells of spinal ganglia and mesencephalic nucleus of trigeminal nerve?

    <p>Unipolar neurons</p> Signup and view all the answers

    'Axo-dendritic' synapse is most common in neuronal communication. What kind of synapse is less common?

    <p>'Axo-axonic' synapse</p> Signup and view all the answers

    Where are sensory receptors, motor endings, nerves, ganglia, cranial nerves, spinal nerves, and the peripheral part of the autonomic nervous system located?

    <p>Peripheral Nervous System (PNS)</p> Signup and view all the answers

    What is the primary function of the axon hillock?

    <p>Integrating incoming signals and generating nerve impulses</p> Signup and view all the answers

    'Anaxonic' neurons have no axon and are found in which parts of the body?

    <p>Retina and olfactory epithelium</p> Signup and view all the answers

    What is the counterpart of Oligodendrocytes in the peripheral nerves?

    <p>Schwann cells</p> Signup and view all the answers

    Where are sensory receptors, motor endings, nerves, ganglia, cranial nerves, spinal nerves, and the peripheral part of the autonomic nervous system located?

    <p>Peripheral Nervous System (PNS)</p> Signup and view all the answers

    Which part of the nervous system is responsible for combining and summing up all received data from the body?

    <p>Central Nervous System (CNS)</p> Signup and view all the answers

    What type of neurons have an axon and multiple dendrites?

    <p>Multipolar neurons</p> Signup and view all the answers

    What is the specific function of the autonomic nervous system (ANS) in relation to the internal organs, blood vessels, and glands?

    <p>Regulating involuntary activities</p> Signup and view all the answers

    'Anaxonic' neurons have no axon and are found in which parts of the body?

    <p>Brain and retina</p> Signup and view all the answers

    Which part of the nervous system includes the structures such as cerebrum, diencephalon, midbrain, pons, and cerebellum?

    <p>Central Nervous System (CNS)</p> Signup and view all the answers

    What type of cells are counterparts of Schwann cells in the peripheral nerves?

    <p>Oligodendrocytes</p> Signup and view all the answers

    What is the primary function of Microglia in the nervous system?

    <p>Acting like macrophages of the CNS</p> Signup and view all the answers

    'Axo-dendritic' synapse is most common in neuronal communication. What kind of synapse is less common?

    <p>'Axo-axonal' synapse</p> Signup and view all the answers

    'Anaxonic' neurons have no axon and are found in which parts of the body?

    <p>Brain and retina</p> Signup and view all the answers

    Which type of division of the nervous system includes nerves carrying conscious sensation from the periphery back to the CNS and innervating voluntary muscles?

    <p>Peripheral Nervous System (PNS)</p> Signup and view all the answers

    What is the primary function of the sensory receptors present in the skin and organs?

    <p>Produce appropriate responses to changes in environment</p> Signup and view all the answers

    Where do nerve impulses from the central nervous system go to produce muscle contractions and gland secretions as responses to stimuli received by sensory receptors?

    <p>Effector organs like muscles and glands</p> Signup and view all the answers

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