Neuroscience: Motor Cortex Location
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Neuroscience: Motor Cortex Location

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Questions and Answers

Where is the primary motor cortex located?

  • Postcentral gyrus
  • Precentral gyrus (correct)
  • Superior temporal gyrus
  • Calcarine sulcus

    • Which of the following functions is associated with the prefrontal cortex?

  • Motor control of voluntary movements
  • Planning and decision-making (correct)
  • Sensory processing from the body
  • Auditory processing

    • The primary visual cortex is located in which lobe of the brain?

  • Parietal lobe
  • Temporal lobe
  • Occipital lobe (correct)
  • Frontal lobe

    • Which of the following is the function of the somatic sensory cortex?

    <p>Processing of touch, pressure, pain, and temperature</p> Signup and view all the answers

    Which sulcus separates the frontal and parietal lobes?

    <p>Central sulcus</p> Signup and view all the answers

    Where is the olfactory cortex located?

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

    Which of the following fiber types interconnect cortical areas within the same cerebral hemisphere?

    <p>Association fibers</p> Signup and view all the answers

    What is the primary function of projection fibers in the brain?

    <p>Passing signals between cerebral cortex and subcortical structures</p> Signup and view all the answers

    Which of the following fibers run from one cerebral hemisphere to the other?

    <p>Commissural fibers</p> Signup and view all the answers

    Which type of fiber is responsible for transmitting motor commands from the brain to the spinal cord?

    <p>Projection fibers</p> Signup and view all the answers

    Which of the following is a role of association fibers?

    <p>To connect different cortical areas within the same hemisphere</p> Signup and view all the answers

    Broca's area is associated with which type of aphasia?

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

    Which of the following is a characteristic feature of Broca's aphasia?

    <p>Speech is labored and words are missing</p> Signup and view all the answers

    Which of the following is typically seen in Wernicke's aphasia?

    <p>Auditory incomprehension and confusion of words</p> Signup and view all the answers

    In Broca's aphasia, which additional problem is often observed besides speech difficulties?

    <p>Agraphia (difficulty writing)</p> Signup and view all the answers

    What is the effect of a large lesion in Broca's area?

    <p>Complete inability to speak</p> Signup and view all the answers

    The lateral ventricles of the brain are shaped like:

    <p>A C-shape with a posterior spur</p> Signup and view all the answers

    Which of the following structures is involved in the production of cerebrospinal fluid (CSF)?

    <p>Choroid plexus</p> Signup and view all the answers

    Which of the following structures is located in the floor of the third ventricle?

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

    The anterior boundary of the third ventricle is formed by which structure?

    <p>Lamina terminalis</p> Signup and view all the answers

    Where is the pineal gland located?

    <p>In the epithalamus, just above the superior colliculus</p> Signup and view all the answers

    What is the primary function of the pineal gland?

    <p>Both B and C</p> Signup and view all the answers

    The interthalamic adhesion connects:

    <p>The right and left thalamus</p> Signup and view all the answers

    The posterior part of the thalamus is known as the:

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

    Which part of the thalamus is responsible for the auditory relay?

    <p>Medial geniculate body</p> Signup and view all the answers

    Which structure in the thalamus is responsible for visual relay?

    <p>Lateral geniculate body</p> Signup and view all the answers

    Where is the medial geniculate body located in relation to the lateral geniculate body?

    <p>Below the lateral geniculate body</p> Signup and view all the answers

    Which part of the thalamus is involved in the auditory relay?

    <p>Medial geniculate body</p> Signup and view all the answers

    The lateral geniculate body is primarily responsible for relaying which type of information?

    <p>Visual information</p> Signup and view all the answers

    Which sensory pathway is responsible for touch and proprioception?

    <p>Dorsal columns</p> Signup and view all the answers

    What is the primary function of the cingulate gyrus?

    <p>Involved in the limbic system, regulating emotions and behavior</p> Signup and view all the answers

    Which sulcus separates the frontal and parietal lobes from the cingulate gyrus?

    <p>Cingulate sulcus</p> Signup and view all the answers

    What structure lies directly beneath the cingulate gyrus?

    <p>Corpus callosum</p> Signup and view all the answers

    What is the role of the septum pellucidum?

    <p>It separates the lateral ventricles from each other.</p> Signup and view all the answers

    The hippocampus is primarily associated with which function?

    <p>Learning and memory</p> Signup and view all the answers

    Which structure connects the hippocampus to other parts of the brain, including the septum pellucidum?

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

    Which structure in the limbic system is responsible for processing emotions and behavior regulation?

    <p>Cingulate gyrus</p> Signup and view all the answers

    What is the primary function of the corpus callosum?

    <p>Connecting the two hemispheres of the brain</p> Signup and view all the answers

    Which of the following is true about the septum pellucidum?

    <p>It is a double fold of membrane that separates the lateral ventricles.</p> Signup and view all the answers

    Which sensory pathway is responsible for touch and proprioception?

    <p>Dorsal columns</p> Signup and view all the answers

    Where does the spinothalamic tract decussate?

    <p>Immediately after entering the spinal cord</p> Signup and view all the answers

    Which of the following is responsible for the sensation of pain and temperature?

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

    What clinical feature is associated with a thalamic lesion?

    <p>Contralateral hemianaesthesia with thalamic pain</p> Signup and view all the answers

    Which pathway decussates in the medulla?

    <p>Dorsal columns</p> Signup and view all the answers

    In which part of the brain does the spinothalamic tract synapse after decussation?

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

    Which sensory pathway carries information related to temperature and pain from the body to the thalamus?

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

    What is the consequence of damage to the dorsal columns?

    <p>Loss of proprioception and touch</p> Signup and view all the answers

    Which tract is responsible for the sensory modalities of touch and proprioception from the lower body?

    <p>Dorsal columns</p> Signup and view all the answers

    What is the term used for the sensation of pain due to a thalamic lesion?

    <p>Thalamic pain</p> Signup and view all the answers

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