where does the last word derive it's name from?
Japanese.
Etymology
A loanword from the Japanese , "umami" can be translated as "pleasant savory taste". 
the movement of food in food pipe is called Peristaltic contractions. enumerate any notable structural mention? Taste buds, mediastinum, diaphragm, trachea, etc. what does the first thing mentioned here compose of? Taste receptor cells. does it have any functionality? Yes, they are involved in detecting the five elements of taste perception: salty, sour, bitter, sweet and umami.
A loanword from the Japanese , "umami" can be translated as "pleasant savory taste". It has been described as savory and is characteristic of broths and cooked meats. From Japanese , "umami" can be translated as "pleasant savory taste"
Umami Umami Umami
Etymology Introduction Etymology
A loanword from the Japanese , "umami" can be translated as "pleasant savory taste". Umami (, from ) or savoriness is one of the five basic tastes (together with sweetness, sourness, bitterness, and saltiness). It has been described as savory and is characteristic of broths and cooked meats. Japanese , "umami" can be translated as "pleasant savory taste"
wiki:5408107
Umami [SEP] Etymology
A loanword from the Japanese , "umami" can be translated as "pleasant savory taste". This neologism was coined in 1908 by Japanese chemist Kikunae Ikeda from a nominalization of "umai" () "delicious". The compound (with "mi" () "taste") is used for a more general sense of a food as delicious.