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.
Q: The effect of GSH synthesis on brain GSH turnover rates for 2 - and 8 - mo - old mice were determined after intracerebroventricular ( icv ) injection of [ 35S ] cysteine .
A:
brain