Spinal Cord - CNS الجزء الثالث أناتومي الـ

Which of the following accurately describes the vertebral level at which the adult spinal cord typically terminates?

The lumbar cistern is a significant anatomical space created by the dilatation of which specific structure?

Which artery directly supplies the anterior two-thirds of the spinal cord with blood?

What is the primary function of the radicular arteries in the context of spinal cord blood supply?

With respect to the vertebral column, where do the cervical spinal nerves typically emerge?

Which structures are contained within the lumbar cistern?

What is the outermost meningeal layer of the spinal cord, and at what vertebral level does it terminate?

Which of the following is NOT a function associated with the lumbar cistern?

Which spinal cord enlargement corresponds to the origin of the nerves that form the brachial plexus?

The anterior median fissure and posterior median septum divide the spinal cord into what?

What type of neurons are primarily found in the ventral horn of the spinal cord?

In which region of the spinal cord is the lateral horn located, and what type of nerve cells does it contain?

Which area of the dorsal horn is responsible for mediating pain and temperature sensations?

Which of the following is a characteristic of the 'white matter' in the spinal cord?

What is the origin and termination of the filum terminale?

Which of the following is NOT a function of CSF?

Where in the spinal cord does the denticulate ligament extend from and to?

Which of the following arteries is NOT a radicular artery arising from the spinal cord?

Which of the following is the middle layer of the meniges?

Which of the spinal cord segments contains the Clark's nucleus?

How does the termination point of the spinal cord in newborns differ from its termination point in adults?

A patient undergoing a lumbar puncture experiences referred pain in the lower limb. Which anatomical structure's proximity to the spinal needle is most likely responsible for this phenomenon?

Following a traumatic injury, a patient exhibits loss of pain and temperature sensation on one side of the body, while motor function and proprioception remain intact. Which spinal cord tract is most likely affected?

A lesion in the spinal cord affects the anterior spinal artery. Which of the following functional deficits would most likely be observed?

What is the functional significance of the cervical and lumbar enlargements of the spinal cord?

A patient presents with an inability to consciously perceive proprioceptive information from their lower limb. Assuming a spinal cord lesion, which of the following structures would most likely be involved?

Following a stab in the back, a patient experiences ipsilateral loss of motor function and proprioception, along with contralateral loss of pain and temperature sensation, all below the level of the injury. This presentation is most consistent with damage to which of the following?

What is the primary clinical relevance of understanding the vertebral level at which the spinal cord terminates in adults?

Which of the following accurately compares the filum terminale internum and filum terminale externum?

If a patient has damage to the posterior intercostal arteries, what is the most likely consequence in relation to the spinal cord's arterial supply?

During a surgical procedure near the spinal cord, the dura mater is inadvertently punctured. What is the most immediate risk associated with this complication?

A patient is diagnosed with a tumor that is compressing the lateral horn of the spinal cord in the thoracic region. Which of the following symptoms would be most likely to manifest as a result of this compression?

What is the functional consequence of the unique arrangement of cervical spinal nerves emerging above their corresponding vertebrae (with the exception of C8)?

If a patient demonstrates impaired motor control of the distal musculature of the upper extremity, which specific area of the ventral horn would likely be affected?

A spinal cord injury results in damage to the ascending tracts within the dorsal column. What specific sensory deficits would you expect to observe in the patient?

A surgeon is performing a procedure that requires access to the spinal cord. To minimize the risk of damage, at which vertebral level should the surgeon aim to perform a laminectomy to access the spinal cord in an adult patient?

Following a spinal cord injury, a patient exhibits spasticity primarily in the flexor muscles of the lower limb. Which of the following best explains the neurophysiological basis for this phenomenon?

A patient presents with a spinal cord lesion that selectively damages the substantia gelatinosa in the dorsal horn. What specific sensory deficit would you expect to observe?

Which of the following statements accurately distinguishes the innervation patterns of the medial and lateral groups of the ventral horn?

A patient experiences a traumatic injury affecting the vertebral artery. What is the most critical implication of this injury concerning the spinal cord?