Upper motor neuron signs |
Absent abdominal reflexes |
Lower motor neuron signs |
Neck extension weakness |
Truncal extension weakness; bent spine |
Abdominal protuberance |
Increased lumbar lordosis |
|
Upper motor neuron symptoms |
Stiffness and imbalance |
Lower motor neuron symptoms |
Neck extensors |
Difficulty holding up the head |
When severe produces head drop |
Truncal extensors |
Difficulty maintaining an erect posture |
Lumbar extensors |
Increased lumbar lordosis |
Abdominal wall muscles |
Abdominal protuberance |
Cramps |
|