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.

 The surfactant protein B ( SP - B ) content in the lung tissue of the autopsied patient was low , and a deletion in the SP - B messenger RNA was detected .
lung

 Increased levels of these cytokines were also found in suprahepatic inferior vena caval blood , but were correlated with the higher portal vein levels , suggesting a gradient from abscess wall to portal vein into the systemic circulation via the liver .
liver

 Suckling stimulus is a novel stimulus that inhibits LH pulses without any cooperation from ovarian steroids , unlike other stimuli such as stress , photoperiod etc .

ovarian