10 Questions
Where do the first-order neurons of the dorsal-column medial lemniscus pathway terminate?
Medulla
What is the function of the dorsal columns in the somatosensory system?
Touch and vibration perception
Where are the second-order neurons of the dorsal-column medial lemniscus pathway located?
Caudal medulla
Which structure divides the dorsal column into the fasciculus gracilis and fasciculus cuneatus?
Intermediate sulcus
What happens as a result of crossing over in the caudal medulla in the dorsal-column medial lemniscus pathway?
Left side of the brain receives sensory input from the right side of the body
Which type of stimuli does discriminative touch involve?
Mechanical stimuli
Which of the following is NOT a mechanoreceptor of the skin involved in discriminative touch?
Langerhans cells
What is the primary function of conscious proprioception?
Sensing limb position and movement
Which receptors are involved in detecting vibration?
Pacinian corpuscles
Which pathway is responsible for transmitting discriminative touch information to the brain?
Dorsal column-medial lemniscus pathway
Test your knowledge of ascending pathways for the body and head, including spinocerebellar tracts, dorsal column-medial lemniscus pathway, anterolateral system, and trigeminal system. Explore the general aspects of pathways and tracts in the nervous system.
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