click below
click below
Normal Size Small Size show me how
Spinal Cord Tracts
Tracts of the Spinal Cord
Question | Answer |
---|---|
Where does sensory info enter from the arms | C4-C5 |
Where does sensory info enter from the legs | L2-L4 |
What is the sensory route in the CNS | Receptor - Sensory Neuron - Spinal Cord - Thalamus - Parietal Cortex |
What does the Dorsal Column control/show | 2 pt discrimination, deep pressure, vibration, conscious muscle sense |
Where does the Dorsal Column cross | Medulla |
What does the LSTT control/show | Pain and Temperature |
Where does the LSTT cross | Spinal Cord at entry |
Where is the LSTT in the Spinal Cord | Lateral anterior close to gray matter |
What does the ASTT control/show | Light touch, light pressure |
Where does the ASTT cross | Spinal Cord at Entry |
Where is the Dorsal Colum | Dorsal side medially |
Where is the ASTT | Ventral side medially |
What does the Posterior Spinocerebellar tract control/show | Unconscious muscle and joint sense |
Where does the PSCT cross | It doesn't |
What does the ASCT control/show | Unconsious muscle and joint sense |
Where does the ASCT cross | Spinal cord at entry |
Where is the PSCT | Lateral dorsal at edge of vertebrae |
Where is the ASCT | Lateral Anterior at edge of vertebrae |
What does the LCST control/do | Moves skeletal muscles (arms/legs) |
Where does the LCST cross | Medulla |
What is the pattern for the Motor Pathway | Primary Motor Cortex- Spinal Cord - Alpha Motor Neuron |
What does the ACST control/do | Moves skeletal muscles (axial) |
Where does the ACST cross | Spinal Cord at site of innervation |
What does extraspinal tract control/do | Stimulate postural muscles, key role in balance |
Role of extraspinal tract | Controls Gamma Motor Neurons |