Although there have been a lot of studies of idioms using vocabulary related to the physical body, there has been no independent studies except for partial investigation on intestines or the inside only.
However, there are relatively more idioms expressing sentiments in Korean related to the five organs than Japanese, in terms of the number of vocabulary or diversity in expressions. This means that the scope of body vocabulary has been extended more than the previous studies.
This study compared and analyzed the idioms for sentiment expressions related to five organs frequently referred to, which are six words of 장[intestine], 애[old word of intestine], 비위[stomach], 부아[lung], 간[liver] and 속[inside]. As a result, it was found that 장[intestine] mainly expresses anger and sorrow; 애[old word of intestine] expresses sadness, 비위[stomach] and 부아[lung] are used to express anger. As for cases using 간[liver], 6 sentiments are expressed, which are joy, anger, fear, sorrow, desire, and surprise. 속[inside] expresses four sentiments of joy, anger, sorrow, and comfort.
That is, vocabulary using 5 organs except for 애[old word of intestine] showed anger in common.
From the results of this study, it was proven that Korean language shows anger in diverse ways by terms related to the human body, and has far more diverse vocabulary in expressing sentiments than Japanese.