أسئلة الـ Ascending Tract

Which of the following best describes the anatomical arrangement of the spinal cord's internal structure?

Which of the following tracts is responsible for carrying discriminative touch, pressure and vibration from the lower limbs?

A patient has lost the ability to perceive pain and temperature on the left side of their body, two segments below the site of a spinal cord lesion. Which tract is most likely affected?

In the spinal cord's gray matter, which group of neurons primarily innervates the muscles of the trunk?

Which of the following is the primary function of the ventral spinocerebellar tract?

What is the role of the substantia gelatinosa of Rolando in the spinal cord?

Which of the following describes the path of the 2nd order neuron in the dorsal column medial lemniscus pathway?

Which ascending tract does not decussate in the spinal cord?

A patient experiences a loss of unconscious proprioception from the lower limb. Which of the following spinal cord structures is most likely involved?

Which of the following sensations is primarily mediated by the nucleus proprius in the dorsal horn of the spinal cord?

A lesion in the medial lemniscus will result in loss of:

What is the critical function of the Clark's nucleus (nucleus dorsalis) in the spinal cord?

Which of the following ascending tracts carries sensory information that allows you to know the position of your limbs without looking?

Following a spinal cord injury, a patient exhibits paralysis and loss of fine touch sensation on the same side of the body below the level of the lesion. Which descending and ascending tracts are most likely affected, respectively?

A patient has selective damage to the lateral horn of the spinal cord in the thoracic region. Which of the following functions would MOST likely be impaired?

A researcher is studying the sensory pathways in the spinal cord. They inject a tracer that is taken up by first-order sensory neurons. Where would they expect to find the cell bodies of these neurons?

The ventral spinothalamic tract is responsible for conveying which type of sensory information?

If a lesion occurred affecting the axons crossing in the anterior white commissure of the spinal cord, which sensory loss would most likely occur?

What type of receptor is primarily responsible for detecting muscle stretch and contributing to proprioception?

Why might no sensory loss be detected following a lesion of the ventral spinothalamic tract?

Which of the following describes the arrangement of motor neuron pools within the ventral horn of the spinal cord?

A patient presents with impaired fine touch and conscious proprioception from the right lower limb, but normal function in the upper limb. Where is the MOST likely lesion?

If a lesion completely transects the left side of the spinal cord at the level of T10, which sensory deficits would be expected below the level of the lesion?

A patient has a lesion affecting the internal arcuate fibers. Which of the following sensory deficits would MOST likely result from this lesion?

A patient presents with a loss of pain and temperature sensation two segments below the level of the lesion. Which structure is MOST likely damaged?

Which of the following best explains why damage to the ventral spinothalamic tract may not result in readily detectable sensory loss?

A patient with a spinal cord injury exhibits loss of unconscious proprioception from the lower limb but intact motor function. Which tract is likely affected?

A researcher is investigating the sensory pathways for discriminative touch in the spinal cord. If they were to trace the path of a second-order neuron in this pathway, where would they expect to find its axon?

Following a spinal cord injury, a patient demonstrates an inability to coordinate movements on the right side of the body, specifically affecting the lower limb. Which of the following pathways is MOST likely affected?

Which of these tracts does NOT contain primary sensory neurons?

A lesion in the spinal cord affects the nucleus proprius. What sensory loss results from this lesion?

Where do the central processes of the dorsal root ganglion ascend to form the gracile and cuneate tracts?

Which of the following best describes the function of spinal border cells in the context of unconscious proprioception?

What is the functional significance of the decussation that occurs within the internal arcuate fibers?

A patient reports a loss of pain and temperature sensation beginning two segments below the level of a spinal cord lesion. Which specific part of the ascending pathway is MOST likely involved?

A patient has a lesion that selectively disrupts the function of the accessory cuneate nucleus. What specific sensory deficit would MOST likely result from this lesion?

Which statement BEST integrates the function and location of the substantia gelatinosa?

A patient presents with impaired pain and temperature sensation three segments below the level of the spinal cord lesion on the contralateral side. The MOST likely explanation involves damage to which specific structure?

A person steps on a sharp object. Which sequence BEST describes the order that the sensory neurons will take?

Damage to the gracile fasciculus would result in deficits of:

Which nuclei in the ventral horn are responsible for controlling extensor muscles?

At what level of the spinal cord are the central group neurons located?

What is the primary function of the lateral corticospinal tract?

A lesion affecting the ventral spinocerebellar tract would MOST directly impair which function?

After a complete spinal cord injury at the T6 level, which ascending tract would LEAST likely transmit signals from the lower extremities?

Which of the following is a key function of the ventral spinothalamic tract?

Which of the following describes the neurons of the Gracilis and Cuneatus?

What is a distinguishing feature of the lateral horn of the spinal cord?

The cell bodies for the second-order neurons of the spinothalamic tract are located in which structure?

Which tract decussates in the medulla oblongata, after ascending in the spinal cord?

The anterolateral system transmits what sensation?

What is the function of the tectospinal tract?

A patient presents with loss of motor function in the left leg and foot. Imaging reveals a lesion affecting a descending tract within the ventral column of the spinal cord. Which tract is most likely involved?

Lesions in the posterior limb of the internal capsule would directly impact which of the following sensory pathways?

Spinal border cells perform what function?

Which sensory receptor type is primarily responsible for the detection of discriminative touch?

The dorsal column-medial lemniscus pathway crosses at what level of the nervous system?

What is the main sensory modality transmitted by the gracile fasciculus?

Central processes of the dorsal root ganglion ascend how many segments before synapsing?

Where do the axons of gracil and cuneate nuclei terminate after decussation?