Nervous System Overview Quiz
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Questions and Answers

What is one of the primary functions of the nervous system?

  • To maintain homeostasis (correct)
  • To regulate hormonal levels
  • To enhance digestive processes
  • To promote cellular respiration

    • What are the two subdivisions of the nervous system?

  • Cognitive and Reactive Nervous System
  • Autonomic and Somatic Nervous System
  • Central and Peripheral Nervous System (correct)
  • Sensory and Motor Nervous System

    • Which of the following processes does the nervous system NOT control?

  • Homeostatic maintenance
  • Digestive enzyme production (correct)
  • Muscle activation
  • Glandular secretion

    • What is involved in the communication process of the nervous system?

    <p>Both electrical and chemical signals</p> Signup and view all the answers

    What is the role of sensory input in the nervous system?

    <p>To gather information about stimuli</p> Signup and view all the answers

    What is the primary function of the thalamus in the diencephalon?

    <p>Relay station for sensory impulses</p> Signup and view all the answers

    Which structure makes up the floor of the diencephalon?

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

    Which of the following is NOT a function of the hypothalamus?

    <p>Processing visual information</p> Signup and view all the answers

    What anatomical feature does the epithalamus primarily form?

    <p>Roof of the third ventricle</p> Signup and view all the answers

    Which statement best describes the location of the diencephalon within the central nervous system?

    <p>Sits atop the brainstem</p> Signup and view all the answers

    What is the main function of the autonomic nervous system?

    <p>Regulates involuntary events</p> Signup and view all the answers

    Which type of cell forms myelin sheaths around nerve fibers in the PNS?

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

    Which division of the PNS consists of nerves that convey impulses to the CNS?

    <p>Sensory/Afferent Division</p> Signup and view all the answers

    What do Satellite Cells do in the peripheral nervous system?

    <p>Act as protective cushioning cells for neuron cell bodies</p> Signup and view all the answers

    Which of the following is a part of the autonomic nervous system that stimulates responses?

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

    What principal type of cells are neuroglia also known as?

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

    What is the role of visceral sensory fibers?

    <p>Transmit impulses from visceral organs</p> Signup and view all the answers

    How does the sympathetic division of the autonomic nervous system primarily function?

    <p>Stimulates fight or flight responses</p> Signup and view all the answers

    What is the primary function of the medulla oblongata?

    <p>Regulation of heart rate and breathing</p> Signup and view all the answers

    Which structure of the brain stem is primarily responsible for breathing control?

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

    What role does the reticular formation play within the brain stem?

    <p>Motor control of the visceral organs</p> Signup and view all the answers

    How is the spinal cord structured in relation to the brain stem?

    <p>It is a glistening white continuation of the brain stem</p> Signup and view all the answers

    Which part of the brain stem is smallest in size?

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

    What is the primary role of myelin sheaths surrounding nerve fibers?

    <p>Enhance the speed of nerve impulse transmission</p> Signup and view all the answers

    Which type of neuron is responsible for carrying impulses from sensory receptors to the CNS?

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

    What distinguishes unipolar neurons from other types of neurons?

    <p>They have a single process emerging from the cell body</p> Signup and view all the answers

    What structure connects the motor and sensory neurons in neural pathways?

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

    Which of the following is NOT a function of the cerebral cortex?

    <p>Regulating heartbeat</p> Signup and view all the answers

    What are basal nuclei responsible for?

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

    Which of the following accurately describes a biploar neuron?

    <p>Has one axon and one dendrite</p> Signup and view all the answers

    Where are ganglia located?

    <p>Only in the PNS</p> Signup and view all the answers

    What is the main component of cerebral white matter?

    <p>Fiber tracts</p> Signup and view all the answers

    Which type of sensory receptor is a proprioceptor?

    <p>Receptors detecting stretch or tension in muscles</p> Signup and view all the answers

    What is the primary structure of the peripheral nervous system?

    <p>A bundle of neuron fibers found outside the CNS</p> Signup and view all the answers

    Which component surrounds each individual neuron fiber in a nerve?

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

    Which cranial nerve is exclusively sensory in function?

    <p>Optic nerve</p> Signup and view all the answers

    How are the dorsal and ventral rami classified in spinal nerves?

    <p>As containing both motor and sensory fibers</p> Signup and view all the answers

    What does the epineurium provide for a nerve?

    <p>Binding for all fascicles to form the nerve</p> Signup and view all the answers

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