TASK DEFINITION: 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.
PROBLEM:  Second trimester placental tissues were collected at the time of termination of pregnancy at 15 and 25 weeks of gestation ( in weeks of amenorrhea ) in trisomy 21 - affected pregnancies .

SOLUTION: placental

PROBLEM:  Brain GSH synthetase activities in 8 - mo - old mice in the cortex , striatum , thalamus , hippocampus , midbrain , and cerebellum were found to increase following t - BuOOH treatment .

SOLUTION: Brain

PROBLEM:  In vivo model of contrast - induced renal injury was induced in mice with unilateral renal occlusion .

SOLUTION:
renal