A sphincter is a circular muscle that normally maintains constriction of a natural body passage or orifice and which relaxes as required by normal physiological functioning. Sphincters are found in many animals. There are over 60 types in the human body, some microscopically small, in particular the millions of precapillary sphincters. Sphincters relax at death, often releasing fluids and faeces. WebApr 7, 2024 · The sphincter meaning is a ring-shaped muscle that relaxes or contracts to open or close a body passage or opening. To define sphincter, these muscles are smooth muscles that remain in a contraction state. These are specialized latch systems in the contractile filaments permitting sphincters to maintain contracting position with …
Sphincter - Wikipedia
Websphincter (sfĭngk′tər) n. A ringlike muscle that normally maintains constriction of a body passage or orifice and that relaxes as required by normal physiological functioning. … WebApr 28, 2024 · The pyloric sphincter is a small piece of smooth visceral muscle that acts as a valve and regulates the flow of partially digested food from the stomach to the duodenum. The opening and closing of the … is indigo toxic
Bladder Sphincter - an overview ScienceDirect Topics
WebGive a situation when the precapillary sphincters to your intestines would be open. Describe the sympathetic response in a frightening situation for the following body part: Intestines. Describe the location and function of the cardiac sphincter. What are the Sphincters of GIT? Where are they located? (a) Define lower esophageal sphincter. WebMar 21, 2024 · Sphincters are circular muscles that use contraction and relaxation as valves to separate the inner content of organs in the digestive system. This function is vital to … WebJan 17, 2024 · sphinc· ter ˈsfiŋ (k)-tər : a ringlike muscle surrounding a body opening that is able to make the opening smaller or close it Medical Definition sphincter noun sphinc· ter … kents ice cream fort atkinson wi