Where does DCML terminate?
The medial lemniscus terminates and synapses with third-order neurons, located in the ventral posterolateral nucleus (VPLN) of the thalamus within each cerebral hemisphere.
What does the fasciculus gracilis do?
Fasciculus gracilis carries sensory information associated with the DCML pathway from the lower extremities and terminates and synapses at the nucleus gracilis in the caudal medulla. It is located medial relative to the fasciculus cuneatus and travels all along the spinal cord.
What is dorsal column tract?
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 in brainstem are the gracile and cuneate nuclei?
In neuroanatomy, the dorsal column nuclei are a pair of nuclei in the dorsal columns in the brainstem. The name refers collectively to the cuneate nucleus and gracile nucleus, which are present at the bottom of the medulla oblongata.
What is the gracile tract?
The gracile fasciculus (fasciculus gracilis or tract of Goll) is a bundle of axon fibers in the posterior column-medial lemniscus pathway of the spinal cord and carries information from the middle thoracic and lower limbs of the body.
What is tract of Goll?
The fasciculus gracilis (tract of Goll) is a bundle of axon fibres in the dorsomedial spinal cord that carries information about fine touch, vibrations, and conscious proprioception from the lower part of the body to the brain stem.
What are fasciculus cuneatus and gracilis?
Functions of Ascending Tracts. The gracile and cuneate fasciculi, collectively called the posterior columns, are composed of the central processes of heavily myelinated primary sensory fibers that convey proprioceptive, tactile, and vibratory information from the ipsilateral side of the body (Fig.
What are the ascending and descending tracts?
The ascending tracts carry sensory information from the body, like pain, for example, up the spinal cord to the brain. Descending tracts carry motor information, like instructions to move the arm, from the brain down the spinal cord to the body.
Where is the lateral spinothalamic tract located?
the spinal cord
The lateral spinothalamic tract, also known as the lateral spinothalamic fasciculus, is an ascending pathway located anterolaterally within the peripheral white matter of the spinal cord. It is primarily responsible for transmitting pain and temperature as well as coarse touch.
What is the difference between ascending tracts and descending tracts?