decorticate and decerebrate posturingDecorticate (flexor) posturing—lesion above red nucleus, presents with flexion of upper extremities and extension of lower extremities
Decerebrate (extensor) posturing—lesion at or below red nucleus(eg. midbrain tegmentum, pons), presents with extension of upper and lower extremities neurologyneurosurgeryUWorld HirotoShishido
which structure is targeted at by high-frequency deep brain stimulation(DBS) for medically intractable symptoms of Parkinson disease?globus pallidus internus or subthalamic nucleus
sensory spinal tract
homunculusthe closer to the first neuron cell body the fibers are located, the upper parts of the body innervated by these fibers get
onset of complications of subarachnoid hemorrhage(SAH)・vasospasm occurs in approx. 30% of patients with SAH 3–10 days(especially 7,8 days) after SAH
・recurrent bleeding occurs in 4–14% of patients with SAH in the first 24 hours (especially in the first 2–12 hours after SAH)
・Hydrocephalus
Occurs in 20–30% of patients with SAH
①Acute obstructive hydrocephalus
Usually occurs within minutes to hours after SAH
② Chronic communicating hydrocephalus
Usually occurs weeks or months after SAH neurologyneurosurgeryUWorld HirotoShishido
Thalamogeniculate artery vs lenticulostriate arteryThalamogeniculate → PCA
