16 Questions
Which posture implies a destructive lesion of the corticospinal tracts within or very near the cerebral hemispheres?
Decorticate Rigidity
What is the posture of chronic spastic hemiplegia when it is unilateral?
Flexed
What characterizes the posture of flaccid hemiplegia early in its course?
Plantar flexed
What is the posture of decerebrate rigidity?
Extended
Which response is limited to the opposite side in flaccid hemiplegia?
Noxious stimuli responses
What does the posture of decorticate rigidity imply when it is unilateral?
Flexor response
Which gait pattern is typically seen in basal ganglia defects of Parkinson disease?
Parkinsonian Gait
In which condition do patients drag their feet or lift them high, with knees flexed, and bring them down with a slap onto the floor, appearing to be walking up stairs?
Steppage Gait
Which posture is characterized by bilateral lower extremity spasticity, causing the thighs to cross forward on each other at each step?
Scissors Gait
What type of gait is observed in corticospinal tract lesions that cause poor control of flexor muscles during swing phase, for example, from stroke?
Spastic Hemiparesis
In which condition are the ankles plantar-flexed and inverted, and the affected leg extensors are spastic?
Spastic Hemiparesis
Which gait pattern involves patients advancing each leg slowly and appearing to walk through water, with compensating sway of the trunk away from the side of the advancing leg?
Scissors Gait
Which gait pattern is seen in disease of the cerebellum or associated tracts and is characterized by staggering and unsteady gait with exaggerated difficulty on turns?
Cerebellar Ataxia
What type of gait is observed in loss of position sense in the legs from polyneuropathy or posterior column damage?
Sensory Ataxia
In which condition are the affected arms flexed, immobile, and held close to the side, with elbow, wrists, and interphalangeal joints flexed?
Spastic Hemiparesis
What kind of gait is observed when patients cannot stand steadily with feet together, whether eyes are open or closed?
Cerebellar Ataxia
Test your knowledge of decorticate rigidity and hemiplegia with this quiz. Learn to identify the characteristic postures and understand the implications of lesions on the corticospinal tracts.
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