Sensory Receptors Quiz
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Questions and Answers

Which lobe of the cerebral cortex is responsible for higher mental functions?

  • Parietal lobe
  • Occipital lobe
  • Temporal lobe
  • Frontal lobe (correct)
  • Which lobe of the cerebral cortex integrates sensory information from different modalities?

  • Occipital lobe
  • Parietal lobe (correct)
  • Frontal lobe
  • Temporal lobe
  • Which lobe of the cerebral cortex is the visual processing center?

  • Temporal lobe
  • Frontal lobe
  • Occipital lobe (correct)
  • Parietal lobe
  • Which part of the nervous system is responsible for responding to and moving about in our environment?

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

    What is the chief excitatory transmitter in the central nervous system?

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

    Which ion is involved in creating an inhibitory post synaptic potential (IPSP)?

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

    What type of summation occurs when EPSPs created by distant synapses overlap?

    <p>Spatial Summation</p> Signup and view all the answers

    Which type of sensory receptor detects change in temperature?

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

    What is the term used to describe the principle that each receptor responds to a limited range of stimuli and has a direct line to the brain?

    <p>Labeled-line principle</p> Signup and view all the answers

    What generates receptor potentials in sensory receptors?

    <p>All of the above</p> Signup and view all the answers

    Which type of receptor adapts rapidly and only responds when change is taking place?

    <p>Rapidly adapting receptors</p> Signup and view all the answers

    Which type of transmitter is usually inhibitory in the central nervous system (CNS)?

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

    What is the main function of small molecule, rapidly acting transmitters in the CNS?

    <p>Mediate most acute responses of the nervous system</p> Signup and view all the answers

    What is the mechanism for synaptic facilitation?

    <p>Build-up of calcium ions in presynaptic terminals</p> Signup and view all the answers

    What is the effect of acidosis on neuronal activity?

    <p>Depresses neuronal activity</p> Signup and view all the answers

    Which two pathways are responsible for transmitting sensory information to the cortex?

    <p>Anterolateral system and dorsal column-medial lemniscal system</p> Signup and view all the answers

    Which pathway transmits touch, vibration, and discrete types of mechanoreceptor information with a high degree of spatial fidelity?

    <p>Dorsal column-medial lemniscal system</p> Signup and view all the answers

    Which pathway transmits pain, thermal sensations, crude touch and pressure, and tickle with a low degree of spatial orientation?

    <p>Anterolateral system</p> Signup and view all the answers

    Which type of somatic sensation is stimulated by mechanical displacement?

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

    Which type of tactile receptor is responsible for motion detection and grip control?

    <p>Meissner corpuscles</p> Signup and view all the answers

    Which type of tactile receptor is characterized by rapid adaptation and perception of form and texture?

    <p>Merkel discs</p> Signup and view all the answers

    Which type of tactile receptor is responsible for perception of distant events through transmitted vibrations?

    <p>Pacinian corpuscles</p> Signup and view all the answers

    Which lobe of the cerebral cortex is responsible for auditory perception, semantics, and memory?

    <p>Temporal lobe</p> Signup and view all the answers

    Which type of artery supplies blood to the frontal lobe of the cerebral cortex?

    <p>Anterior cerebral artery</p> Signup and view all the answers

    Which type of sensory information does the parietal lobe of the cerebral cortex integrate?

    <p>Sensory information from different modalities</p> Signup and view all the answers

    Which type of artery supplies blood to the occipital lobe of the cerebral cortex?

    <p>Posterior cerebral artery</p> Signup and view all the answers

    Which type of sensory receptor is responsible for motion detection and grip control?

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

    Which type of receptor is responsible for motion detection and grip control?

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

    What is the effect of alkalosis on neuronal excitability?

    <p>Increases neuronal excitability</p> Signup and view all the answers

    Which lobe of the cerebral cortex is responsible for visual processing?

    <p>Occipital lobe</p> Signup and view all the answers

    What is the main function of neuropeptides as neurotransmitters?

    <p>Cause long-term changes in the number of neuron receptors</p> Signup and view all the answers

    Which pathway is responsible for transmitting pain, thermal sensations, crude touch and pressure, and tickle with a low degree of spatial orientation?

    <p>Spinothalamic pathway</p> Signup and view all the answers

    Which part of the nervous system is responsible for subconscious body activities such as arterial pressure and respiration?

    <p>Lower brain level</p> Signup and view all the answers

    Which neurotransmitter is the chief inhibitory transmitter in the adult central nervous system?

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

    Which type of potential change does not reach the threshold for firing an action potential?

    <p>Subthreshold potential change</p> Signup and view all the answers

    Which ion is involved in creating an excitatory post synaptic potential (EPSP)?

    <p>Sodium (Na+)</p> Signup and view all the answers

    Which type of summation occurs when postsynaptic potentials created by multiple terminals of a single presynaptic neuron overlap?

    <p>Spatial summation</p> Signup and view all the answers

    Which type of somatic sensation detects pain and any factor that damages tissue?

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

    Which type of tactile receptor is responsible for skin motion and low frequency vibration?

    <p>Meissner corpuscles</p> Signup and view all the answers

    Which type of tactile receptor has a receptive field of 22 mm2 and detects edges, points, corners, and curvature?

    <p>Merkel discs</p> Signup and view all the answers

    Which type of tactile receptor is characterized by slow adaptation and perception of form and texture?

    <p>Ruffini corpuscles</p> Signup and view all the answers

    Which type of sensory receptor is responsible for detecting pain, temperature, and itch?

    <p>Free nerve endings</p> Signup and view all the answers

    Which type of receptor detects damage and is responsible for the perception of pain?

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

    What determines how a sensation is perceived by the brain?

    <p>Both the characteristics of the receptor and the central connections of the axon</p> Signup and view all the answers

    What is the term used to describe the principle that each receptor responds to a limited range of stimuli and has a direct line to the brain?

    <p>Labeled-line principle</p> Signup and view all the answers

    What generates receptor potentials in sensory receptors?

    <p>All of the above</p> Signup and view all the answers

    Which type of receptor adapts slowly and continues to transmit impulses to the brain for long periods of time while the stimulus is present?

    <p>Slowly adapting receptors</p> Signup and view all the answers

    Which pathway contains large myelinated nerve fibers and transmits touch, vibration, and discrete types of mechanoreceptor information with a high degree of spatial fidelity?

    <p>Dorsal column-medial lemniscal system</p> Signup and view all the answers

    Which pathway contains smaller myelinated and unmyelinated fibers and transmits pain, thermal sensations, crude touch and pressure, and tickle with a low degree of spatial orientation?

    <p>Anterolateral system</p> Signup and view all the answers

    Which system decussates in the medulla oblongata?

    <p>Dorsal column-medial lemniscal system</p> Signup and view all the answers

    Which system decussates in the spinal cord?

    <p>Anterolateral system</p> Signup and view all the answers

    Which part of the cerebral cortex receives information from the opposite side of the body?

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

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