animal : Biology : comparative philology > craw



Contents ·No. 1 ·sù náng ·No. 3 ·No. 4 ·English Expression ·Thesaurus ·More results... No. 1 　　Part of the digestive organs of birds, shaped like a capsule, in the lower esophagus. After years of food in the crop wetting and softening, and then into the stomach and gizzard before, help digestion. Translated by Google sù náng 　　With the "crop" Translated by Google No. 3 　　Birds or insects, food storage bag-shaped organ, is a part of the digestive organs Translated by Google No. 4 　　脊椎动物鸟类食管的后段暂时贮存食物的膨大部分，称为嗉囊。食物在嗉囊里经过润湿和软化，再被送入前胃和砂囊，有利于消化。嗉囊有单个的，如鸡，或成对而横位扩张，如鸠（jiū）。麝雉的嗉囊壁为肌肉质，对其中贮的粗糙树叶，能起一定的机械磨碎作用。鸭和鹅虽无嗉囊，但食管在该处略呈纺锤状膨大。鸽的嗉囊在育雏期间能分泌乳汁，称“鸽乳”，用以哺育雏鸽。（图） 　　无脊椎动物如蚯蚓、蛭类和昆虫的食道后面的膨大部分也称为嗉囊。蛭类的嗉囊特别发达，两侧生有多对盲囊，用以贮存吸食宿主的血液。 English Expression n.:  craw,  jowl,  maw,  crop (of a bird) Thesaurus crop (of bird), craw