Definition, Meaning & Synonyms

extrapyramidal

Adjective
/ˌɛkstrəpɪrəˈmædəl/
Definition
Relating to a system of neural pathways located outside the pyramidal tract that coordinates involuntary movements.
Examples
  • Parkinson’s disease is characterized by extrapyramidal symptoms such as tremors and rigidity.
  • Medications can sometimes lead to extrapyramidal side effects, impacting a patient’s motor control.
Meaning
The extrapyramidal system is involved in the regulation of automatic and unconscious movements and helps control muscle tone and posture.
Synonyms
  • non-pyramidal
  • subcortical
  • involuntary