Every movement you make travels a specific route: cortex, tract, cord level, nerve root, peripheral nerve, muscle. Play through those routes one link at a time — then test yourself on dermatomes, reflexes, cranial nerves, and where a lesion has to be to explain the symptoms.
Each one lists what you lose in motion, what you lose in sensation, which reflex changes, what usually causes it, and when it needs urgent attention.
These are the patterns the game tests. Clinicians use them daily to decide which level a problem is coming from.
| C5 | Lateral shoulder, over the deltoid |
| C6 | Thumb and lateral forearm |
| C7 | Middle finger |
| C8 | Little finger, medial forearm |
| T4 | Nipple line |
| T10 | Umbilicus |
| L3 | Medial knee |
| L4 | Medial leg and medial malleolus |
| L5 | Dorsum of foot, web of great toe |
| S1 | Lateral foot, little toe, heel |
| C5 | Shoulder abduction |
| C6 | Elbow flexion, wrist extension |
| C7 | Elbow extension, wrist flexion |
| C8 | Finger flexion |
| T1 | Finger abduction and adduction |
| L2 | Hip flexion |
| L3 | Knee extension |
| L4 | Ankle dorsiflexion |
| L5 | Great toe extension |
| S1 | Ankle plantarflexion and eversion |
| Biceps | C5 (with C6) |
| Brachiorad. | C6 |
| Triceps | C7 |
| Patellar | L4 (L2–L4) |
| Achilles | S1 |
| Babinski | Upper motor neuron sign when present in adults |
| Hoffman | Suggests cervical cord involvement |
| Cortico- spinal | Voluntary movement. Crosses in the medulla, so one side of the brain drives the opposite side of the body. |
| Dorsal column | Fine touch, vibration, joint position. Ascends on the same side, crosses in the medulla. |
| Spino- thalamic | Pain and temperature. Crosses within a segment or two of entering the cord. |
| Spino- cerebellar | Unconscious position sense to the cerebellum for coordination. |
When numbness follows a dermatome, when one reflex is missing, when a single muscle is weak — the pattern tells us the level. That is what a proper neurological exam is for, and it is where every care plan here begins.
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