What is medial lemniscus?
The medial lemniscus is a second-order neuron of the dorsal column-medial lemniscus pathway (DCML), which, with the somatotopic arrangement, transports the sensory spinothalamic information of conscious proprioception, vibration, fine touch, and 2-point discrimination of skin and joints of the body and head; from the …
What tracts are in the medial lemniscus?
The main somatosensory tracts from the spinal cord, the gracile and cuneate pathways, synapse in the gracile and cuneate nuclei of the caudal hindbrain (Figs. 12.18–12.19). The axons from the gracile and cuneate nuclei cross the midline to form the medial lemniscus (Figs.
Is medial lemniscus the same as dorsal column?
The dorsal column, also known as the dorsal column medial lemniscus pathway, deals with the conscious appreciation of fine touch, 2-point discrimination, conscious proprioception, and vibration sensations from the body; sparing the head.
Where is medial lemniscus located?
medulla oblongata
The medial lemniscus, also known as Reil’s band or Reil’s ribbon, is a large ascending bundle of heavily myelinated axons that decussate in the brainstem, specifically in the medulla oblongata.
What does lemniscus mean?
Medical Definition of lemniscus : a band of fibers and especially nerve fibers. — called also fillet.
Where does medial lemniscus end?
the thalamus
The ascending fibers in the medial lemniscus terminate mostly in the ventral posterior nuclei of the thalamus, with inputs from the face in the medial division (ie, ventral posterior medial) and inputs from the rest of the body arriving in the lateral division (ie, ventral posterior lateral).
What is spinal lemniscus?
spi·no·tha·lam·ic tract a general term describing a large ascending fiber bundle in the ventral half of the lateral funiculus of the spinal cord, arising from cells in the posterior horn at all levels of the cord, which cross within their segments of origin in the white commissure.
Where is the medial lemniscus?
What is the spinal lemniscus?
What does the spinal lemniscus carry?
The lateral spinothalamic tract carries pain and temperature information from the body; the anterior spinothalamic tract (adjacent and dorsal to the lateral tract) carries light touch information.