202 DR 4 Neuroanat 1 Organisation of the central nervous system1_Master
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Questions and Answers

Which of the following is true about the cervical and lumbosacral enlargements?

  • They are regions of the brain responsible for memory and learning.
  • They are regions of the spinal cord responsible for sensory perception.
  • They are regions of the brain that control motor functions.
  • They are regions of the spinal cord that innervate the upper and lower limbs. (correct)

    • What can be found in the dorsal roots of the spinal cord?

  • Connective tissue
  • Sensory (afferent) nerve fibers (correct)
  • Blood vessels
  • Motor (efferent) nerve fibers

    • What is the function of the ventral roots of the spinal cord?

  • To transmit sensory information to the brain
  • To control voluntary muscle movements (correct)
  • To regulate body temperature
  • To produce cerebrospinal fluid

    • What is the role of the anterior median fissure in the spinal cord?

    <p>To provide a division between the left and right sides of the spinal cord</p> Signup and view all the answers

    What is the purpose of the meninges?

    <p>To protect the spinal cord</p> Signup and view all the answers

    What are the main components of the cerebellum?

    <p>Lobes and sulci</p> Signup and view all the answers

    What can be found in the ventral surface of the brain?

    <p>Structures responsible for motor control</p> Signup and view all the answers

    Which nerve fibers pass through the thoracic ventral roots?

    <p>Preganglionic sympathetic nerve fibers</p> Signup and view all the answers

    Which roots form the cauda equina?

    <p>Lumbar and sacral dorsal roots</p> Signup and view all the answers

    What forms the caudal end of the spinal cord?

    <p>Conus medullaris</p> Signup and view all the answers

    What is the dura?

    <p>The outer layer of the meninges</p> Signup and view all the answers

    What is the main function of cerebrospinal fluid?

    <p>Acts as a hydraulic buffer to cushion the brain against trauma</p> Signup and view all the answers

    Where is a lumbar puncture usually performed in adults and children?

    <p>Between L3 and L4 vertebrae</p> Signup and view all the answers

    What do the dorsal root ganglia contain?

    <p>The cell bodies of primary sensory neurons</p> Signup and view all the answers

    Q1. What is the function of the middle meningeal artery?

    <p>To supply most of the dura</p> Signup and view all the answers

    Q2. What separates the two cerebral hemispheres?

    <p>The falx cerebri</p> Signup and view all the answers

    Q3. What is the function of the arachnoid granulations?

    <p>To drain excess cerebrospinal fluid into the venous system</p> Signup and view all the answers

    Q4. Where is the transverse sinus located?

    <p>Along the superior border of the falx cerebri</p> Signup and view all the answers

    Q5. What is the clinical significance of the cavernous sinus?

    <p>It is a potential route of infection from extracranial to intracranial sites</p> Signup and view all the answers

    Q6. What sensory information is processed in the parietal lobe?

    <p>Somatosensory processing</p> Signup and view all the answers

    Q7. What is the function of the central sulcus?

    <p>To contain primary motor and sensory cortices</p> Signup and view all the answers

    Which area of the brain is situated within the inferior wall of the lateral sulcus?

    <p>Primary auditory area</p> Signup and view all the answers

    Which area of the brain lies deep to the lateral sulcus and cannot be seen unless the lips of the sulcus are parted?

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

    Which cranial nerve is responsible for relaying olfactory information to the brain?

    <p>CN I</p> Signup and view all the answers

    Which structure connects the mammillary bodies to the hippocampus?

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

    What is the main function of the cerebellum?

    <p>Control of posture</p> Signup and view all the answers

    What separates the anterior and posterior lobes of the cerebellum?

    <p>Primary fissure</p> Signup and view all the answers

    What connects the posterior aspect of the brainstem to the cerebellum?

    <p>Inferior cerebellar peduncle</p> Signup and view all the answers

    What is the largest part of the hindbrain?

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

    What is the main relay station in olfactory pathways?

    <p>Olfactory bulb</p> Signup and view all the answers

    Q1. What is the function of the pia mater?

    <p>To closely invest the brain</p> Signup and view all the answers

    Q2. What artery supplies most of the dura?

    <p>Middle meningeal artery</p> Signup and view all the answers

    Q3. What is the function of the falx cerebri?

    <p>To separate the two cerebral hemispheres</p> Signup and view all the answers

    Q4. What bone is the tentorium cerebelli attached to?

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

    Q5. What is the function of the arachnoid granulations?

    <p>To drain excess cerebrospinal fluid into the venous system</p> Signup and view all the answers

    Q6. What is the clinical significance of the cavernous sinus?

    <p>It is a potential route of infection from extracranial to intracranial sites</p> Signup and view all the answers

    Q7. What sensory information is processed in each of the lobes?

    <p>Touch, pain, and limb position in the parietal lobe, visual processing in the occipital lobe, speech and memory in the temporal lobe</p> Signup and view all the answers

    Which area of the brain is situated within the inferior wall of the lateral sulcus?

    <p>Primary auditory area</p> Signup and view all the answers

    What is the main relay station in olfactory pathways?

    <p>Olfactory bulb</p> Signup and view all the answers

    What connects the mammillary bodies to the hippocampus?

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

    What is the largest part of the hindbrain?

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

    What are the main functions of the cerebellum?

    <p>Control of posture, coordinating limb movements, control of eye movements</p> Signup and view all the answers

    What connects the posterior aspect of the brainstem to the cerebellum?

    <p>Superior cerebellar peduncle</p> Signup and view all the answers

    Which lobes of the cerebellum are separated by the primary fissure?

    <p>Anterior and posterior lobes</p> Signup and view all the answers

    What connects the hypothalamus to the pituitary gland?

    <p>Pituitary stalk</p> Signup and view all the answers

    What lies deep to the lateral sulcus and can only be seen when the lips of the sulcus are parted?

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

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