The spinal cord tracts are categorized into (sensory/afferent) and descending (motor/efferent) pathways that allow the brain to communicate with the rest of the body. 1. Ascending Tracts (Sensory Pathways)
Ascending tracts transmit somatosensory information from the body to the brain. They typically follow a three-neuron chain ascending and descending tracts of spinal cord ppt
Ascending tracts, described in detail on Kenhub , carry sensory data—such as touch, pain, temperature, and proprioception—from the body to the brain. They typically involve a three-neuron chain: From receptor to spinal cord. They typically follow a three-neuron chain Ascending tracts,
Responsible for involuntary motor control, maintaining posture, balance, and muscle tone. Key Tracts: Vestibulospinal: Balance and posture. Reticulospinal: Posture and gait. Rubrospinal: Flexor muscle tone. Tectospinal: Head movement in response to visual stimuli. 4. Key Differences and Clinical Significance (PPT Summary) Ascending Tracts Descending Tracts Type Sensory (Afferent) Motor (Efferent) Direction Spinal Cord →right arrow →right arrow Spinal Cord Function Touch, Pain, Proprioception Voluntary/Involuntary Movement Location Dorsal/Lateral columns Lateral/Anterior columns Damage Loss of sensation Muscle weakness/Paralysis Common Pathologies Key Tracts: Vestibulospinal: Balance and posture
Anterior Spinothalamic Tract : Primarily crude touch and pressure.
Originates in the cerebral cortex and descends through the brainstem. B. Extrapyramidal Tracts
Mixed (primarily motor and some sensory tracts).