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What are the origins for lateral spinothalamic and anterior spinothalamic tracts?
RedGuitar168
- 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)
Wiki User
∙ 13y ago
Wiki User
∙ 13y ago- Lateral spinothalamic tract = axons of substantia gelatinosa of Rolandi (which cross to the opposite side in front of the central canal)
- Anterior spinothalamic tract = axons of the nucleus proprius (which cross to the opposite side too)
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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 are nueral tracts that convey life saving information to the brain concerning burning pain?
lateral spinothalamic
What do ascending tracts contain?
They are sensory tracts.We have 4 tracts carrying conscious sensations = gracile + cuneate + lateral spinothalamic + anterior spinothalamicAnother 4 tracts carrying unconscious sensations = posterior spinocerebellar + anterior spinocerebellar + spino-olivary + spinotectal
What you see is carried to the occipital lobe by the?
optic nerve (at the back of the eye) which then crosses at the optic chiasm. From this point, the optic tracts travel to the lateral geniculate nucleus, and then on to the visual cortex in the occipital lobe.
What is nucleus Z?
located in the medulla oblongata of the brainstem as an area of grey matter that will link the somatosensory info coming in from the spinal cord with the motor areas of the thalamus ( ventral lateral part) using whit matter fiber tracts.
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 are nueral tracts that convey life saving information to the brain concerning burning pain?
lateral spinothalamic
What do ascending tracts contain?
They are sensory tracts.We have 4 tracts carrying conscious sensations = gracile + cuneate + lateral spinothalamic + anterior spinothalamicAnother 4 tracts carrying unconscious sensations = posterior spinocerebellar + anterior spinocerebellar + spino-olivary + spinotectal
Which spinal cord tracts carry impulses for conscious sensations?
Lateral Spinothalamic
What tracts of the spinal cord carry sensory information to the brain?
spinothalamic
What tracts the spinal cord carry sensory information to the brain?
spinothalamic
What are the subdivisions of pyramidal tracts?
Vestibulspinal tract (majority of its fibres are uncrossed)Olivospinal tractMedial Reticulospinal tract*mnemonic to memorize: V-O-MER
What is the name of the synapse site in the brain for afferent fibers that travel to the sensory cortex?
i think it is the choroid plexus....not for sure though ---- Afferent sensory fibers (those returning to the brain from the periphery) synapse first in the posterior horn of the spinal cord, ascend one to two levels and decussate (cross over) at the anterior white commissure before their axons migrate to the anterior or lateral spinothalamic tracts. These then synapse again in the thalamus for integration before they go on to the post-central gyrus - the sensory cortex - and other sites in the cortex.
What is the difference between pyramidal and extrapyramidal system?
The Similarity: Pyramidal and extra-pyramidal system are the descending tracts (motor tracts) of spinal cord.The Difference:1) Their tracts -Pyramidal system = lateral and anterior corticospinal tracts + corticobulbar tractExtra-pyramidal system = rubrospinal + olivospinal + lateral and medial reticulospinal + tectospinal + vestibulospinal tracts2) "Extrapyramidal tracts" don't reach their targets by traveling through the "pyramids of medulla". Pyramidal tracts go through the pyramids of medulla.3) Pyramidal tracts may directly innervate motor neurons of spinal cord or brainstem (anterior horn cells or certain cranial nerve nuclei). But, extrapyramidal tractsindirectly control the anterior horn cells (for modulation and regulation)4) Pyramidal system is responsible for fine, isolated, precise and specific movements. Extrapyramidal system is responsible for gross, syngergic movements which require the activity of large groups of muscles
What tract is motor in nature?
There are six important descending, or motor, tracts and their functions in brief are as follows: 1. Lateral corticospinal tracts: voluntary movement, contraction of individual or small groups of muscles, particularly those moving hands, fingers, feet, and toes on opposite side of body 2. Anterior corticospinal tracts: same as preceding except mainly muscles of same side of body 3. Reticulospinal tracts: help maintain posture during skeletal muscle movements 4. Rubrospinal tracts: transmit impulses that coordinate body movements and maintenance of posture 5. Tectospinal tracts: head and neck movement related to visual reflexes 6. Vestibulospinal tracts: coordination of posture and balance
Descending tracts within the spinal cord carry what kind of impulses to the muscles?
To make it simple, they are 3 types of descending (efferent) tracts of spinal cord:Pyramidal tracts = lateral and anterior corticospinal tracts + corticobulbar tractExtra-pyramidal tracts= Vestibulospinal + Reticulospinal (Lateral and medial) + Olivospinal + Rubrospinal + Tectospinal tractsDescending autonomic
What is the anterior visual pathway?
The anterior visual pathway refers to the pathway that visual information takes from the eyes to the visual cortex in the brain. It includes the optic nerves, optic chiasm, optic tracts, and lateral geniculate nucleus. This pathway is responsible for transmitting visual signals from the retina to the brain for processing and interpretation.
