Podcast
Questions and Answers
Which type of touch is primarily detected by Meissner corpuscles?
Which type of touch is primarily detected by Meissner corpuscles?
- Light touch (correct)
- Position and movement
- Discriminative touch
- Vibration
Where do the 1st order neurons synapse in the lower medulla?
Where do the 1st order neurons synapse in the lower medulla?
- Nucleus gracilis
- Nucleus cuneatus (correct)
- Ventral posterior nucleus of thalamus
- Dorsal cord
What is the consequence of damage to the dorsal columns?
What is the consequence of damage to the dorsal columns?
- Increased sensation of fine touch
- Loss of proprioception above the level of lesion (correct)
- Sensory ataxia
- Contralateral symptoms
Which receptors are responsible for detecting tactile and vibration stimuli?
Which receptors are responsible for detecting tactile and vibration stimuli?
What is the function of the 2nd order neurons in the sensory pathway?
What is the function of the 2nd order neurons in the sensory pathway?
What clinical syndrome is caused by a severe deficit in touch and proprioception due to destruction of dorsal root ganglion cells?
What clinical syndrome is caused by a severe deficit in touch and proprioception due to destruction of dorsal root ganglion cells?
Damage to the spinothalamic tract would MOST likely result in:
Damage to the spinothalamic tract would MOST likely result in:
Where do the 2nd order neurons decussate in the sensory pathways?
Where do the 2nd order neurons decussate in the sensory pathways?
In Brown-Sequard Syndrome, what is the key sensory loss pattern?
In Brown-Sequard Syndrome, what is the key sensory loss pattern?
Where do the 3rd order neurons in the sensory pathways travel after leaving the thalamus?
Where do the 3rd order neurons in the sensory pathways travel after leaving the thalamus?
What is the consequence of syringomyelia on the sensory pathways?
What is the consequence of syringomyelia on the sensory pathways?
Which structure is primarily responsible for transmitting pain and temperature sensations from the spinal cord to the brain?
Which structure is primarily responsible for transmitting pain and temperature sensations from the spinal cord to the brain?
Where do we find loss of sensations for all somatosensory modalities at the level of the lesion?
Where do we find loss of sensations for all somatosensory modalities at the level of the lesion?
Which sensory modalities are lost on the contralateral side below the level of the lesion?
Which sensory modalities are lost on the contralateral side below the level of the lesion?
Where are pain and temperature sensations lost starting about one or two segments below the lesion?
Where are pain and temperature sensations lost starting about one or two segments below the lesion?
Which tract is responsible for carrying pain and temperature sensations?
Which tract is responsible for carrying pain and temperature sensations?
Where do we find loss of fine touch and conscious proprioception?
Where do we find loss of fine touch and conscious proprioception?
Where should damage be located to result in loss of fine touch and conscious proprioception at T6 on the left hand side?
Where should damage be located to result in loss of fine touch and conscious proprioception at T6 on the left hand side?
