This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Physiology
[{'content': 'Position in decoicate rigidity ? \nSelect and explain. \nA. Flexion of elbow and extension of knee, B. Extension of elbow and flexion of knee, C. Flexion of elbow and knee, D. Extension of elbow and knee', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' I,e,, Flexion of elbow and extension of kneeA decoicate rigidity is made by removing the whole cerebral coex but leaving the basal ganglia intact.Decoicate rigidity is characterized by flexion of upper extremities at elbow and extension of lower extremities.The flexion is due to rubrospinal tract excitation of flexors in the upper extremities and hyperextension of the lower extremity has same mechanism as in decerebrate rigidity.", 'role': 'assistant'}]