instruction:
In this task, you will be given sentences in which your task is to recognize the name of the organ of the body. An organ is a collection of tissues that structurally form a functional unit specialized to perform a particular function. Although there might be several correct answers, you need to write one of them.
question:
In this report we assess the systolic maximal flow velocity in carotid and intracranial arteries in 191 subjects with no history of cerebral vascular disease in 3 age groups : 20 - 40 years ( 1 group ) , 41 - 60 years ( 2 group ) , and above 60 years ( 3 group ) .
answer:
cerebral

question:
A large number of reports have shown that serotonin agonists and antagonists can produce increases and decreases in IOP when given orally , topically to the eye or when they are directly injected in the anterior chamber [ 10 , 26 , 34 , 35 , 64 , 75 , 84 , 87 , 88 , 112 , 113 , 126 , 136 , 137 ] .
answer:
eye

question:
Three patients had decreased CBF in right anterior and middle cerebral artery territories compared with CBF on the left , and one patient had a profound decrease in CBF in all three territories in the right hemisphere .
answer:
cerebral