These pathways originate in the brainstem and are largely responsible for involuntary movements, posture, and muscle tone.Rubrospinal Tract: Involved in controlling flexor muscle tone.Vestibulospinal Tract: Helps maintain balance and head posture.Reticulospinal Tract: Influences muscle tone and sweat gland activity.Tectospinal Tract: Coordinates head and eye movements in response to visual or auditory stimuli. Clinical Significance and Lesions
| Tract Name | Function | Decussation Site | | :--- | :--- | :--- | | | Fine touch, Vibration | Medulla | | Spinothalamic | Pain, Temperature | Spinal Cord (at entry level) | | Lateral Corticospinal | Voluntary Motor | Medulla (Pyramids) | | Rubrospinal | Motor Coordination | Midbrain | ascending and descending tracts of spinal cord ppt
| Tract | Type | Crosses | Function | |-------|------|---------|----------| | Lateral Spinothalamic | Ascending | Spinal cord | Pain, temp | | Dorsal Column | Ascending | Medulla | Fine touch, vibration | | Lateral Corticospinal | Descending | Medulla | Voluntary movement | | Vestibulospinal | Descending | No | Balance, extensor tone | These pathways originate in the brainstem and are
The descending tracts of the spinal cord are responsible for transmitting motor signals from the brain to the body. The main descending tracts include: ascending and descending tracts of spinal cord ppt