Gastric and large intestinal reflex

Japanese: 胃・大腸反射 - いだいちょうはんしゃ

…The movement of the large intestine is not usually very strong, but when you eat, strong peristalsis occurs from the transverse colon to the sigmoid colon. This is called the gastrocolic reflex. If you hold back on your bowel movements at this time, the stimulation to defecate disappears, and if this is repeated, the defecation reflex of the rectum becomes dull, making you more likely to develop constipation. …

From [Digestion]

…The movement of the digestive muscles is regulated by several reflexes. For example, after eating, a sudden and strong movement of the large intestine occurs, which is called the gastrocolic reflex. Also, during vomiting, small intestinal movement is inhibited, which is due to the gastroenteric reflex. …

*Some of the terminology that refers to the "gastrocolic reflex" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…大腸の運動は，ふだんはあまり強くはないが，食事をとると横行結腸からS状結腸にかけて強い蠕動がおこる。これを胃･大(結)腸反射という。このときに排便を我慢すると排便刺激がなくなり，これをくり返していると，直腸の排便反射が鈍くなり，便秘をおこしやすい。…