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What is related to the spinothalamic tract Thalamus and nociceptors?
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What does spinothalamic tract do?
The lateral spinothalamic tract is a bundle of sensory axons ascending through the white matter of the spinal cord, carrying sensory information to thebrain. It carries pain and temperature sensory information to the thalamus of the brain
The white matter tract in the ventral portion of the mid-brain?
spinothalamic tract
What happens if the ventral spinothalamic tract is damage?
The ventral spinothalamic tract carries "light touch" sensation. There are three neurons that carry the information to the brain. From the cutaneous nerve(s) in the skin to the dorsal root ganglia, then to the dorsal horn in spinal cord, crossing over to the other side and traveling up to the thalamus, and finally from the thalamus to post-central gyrus. Because the axons of the neuron cross over to the other side of the spinal cord almost immediately, a spinal cord lesion will produce loss of this sensation on the opposite side of the body below where the lesion occurs. According to one of my medical books, however, light touch can ALSO be carried via the medial lemniscus tract, which doesn't cross until it reaches the brain stem. That being true, light touch could be spared even if there is damage to the ventral spinothalamic tract. I hope that helps! Compliments of your friendly MSI :)
What connects the dentate nucleus to the thalamus?
The pathway that connects the dentate nuclei to the ventro-lateral thalamus is called the dentatothalamic tract. This is contained within the superior cerebellar peduncles.
How do signals get from the eye's rods and cones to the brain?
From the receptors to bipolar cells, then to ganglionic cells still in the retina. These then project into the optic nerves (cranial nerve II). The optic nerves then partially cross over at the optic chiasm, before reaching the thalamus, where signal processing begins. From the thalamus the optic tract leads to the visual cortex in the occipital lobe, where visual sensation is generated.
What tract conducts impulse from the spinal cord to the thalamus?
to the spinothalamic tract
What does spinothalamic tract do?
The lateral spinothalamic tract is a bundle of sensory axons ascending through the white matter of the spinal cord, carrying sensory information to thebrain. It carries pain and temperature sensory information to the thalamus of the brain
What is the difference between lateral spinothalamic and anterior spinothalamic tracts?
Lateral spinothalamic tract = carry pain and temperature sensationsAnterior spinothalamic tract = carry crude touch and light pressure
What is the function of lateral spinothalamic tract?
The function of this tract is to detect pain.
What tract conveys nerve impulses for crude touch and pressure?
spinothalamic, it is a somatosensory pathway
The white matter tract in the ventral portion of the mid-brain?
spinothalamic tract
What tract might be damaged if there is diminished pain perception?
The spinothalamic tract is damaged.
What is the pathway for crude pain?
The lateral spinothalamic tract (it carries sensation for temperature and pain) whereas the anterior spinothalamic tract carries sensation for light touch and pressure.
What are the origins for lateral spinothalamic and anterior spinothalamic tracts?
Lateral reticulospinal tract : It arises from the nuclei of reticular formation of the brain stem (mainly medulla)Medial reticulspinal tract : It arises from the nuclei of reticular formation of the brain stem (mainly pons)
What happens if the ventral spinothalamic tract is damage?
The ventral spinothalamic tract carries "light touch" sensation. There are three neurons that carry the information to the brain. From the cutaneous nerve(s) in the skin to the dorsal root ganglia, then to the dorsal horn in spinal cord, crossing over to the other side and traveling up to the thalamus, and finally from the thalamus to post-central gyrus. Because the axons of the neuron cross over to the other side of the spinal cord almost immediately, a spinal cord lesion will produce loss of this sensation on the opposite side of the body below where the lesion occurs. According to one of my medical books, however, light touch can ALSO be carried via the medial lemniscus tract, which doesn't cross until it reaches the brain stem. That being true, light touch could be spared even if there is damage to the ventral spinothalamic tract. I hope that helps! Compliments of your friendly MSI :)
Does the spinothalamic tract have somatotopic organisation?
yes the spinothalamic tract is highly organised somatotopically. In the cervical segments (which contain fibres from all levels of the body), fibres from lower levels of the cord (conveying info from legs) are found laterally within the tract; fibres from higher levels (conveying info from arms) are found medially within the tract. i.e ARMS = MEDIAL LEGS = LATERAL Hope that helps =)
What connects the dentate nucleus to the thalamus?
The pathway that connects the dentate nuclei to the ventro-lateral thalamus is called the dentatothalamic tract. This is contained within the superior cerebellar peduncles.
