the pharyngeal-esophageal phase, an involuntary process
It is also known as the ailmentary tract or ailmentary canal.
The smooth muscle layer, known as the muscularis externa, is responsible for primary digestive motility in the gastrointestinal tract. It consists of inner circular and outer longitudinal muscle layers that work together to propel food through the digestive system via peristalsis.
The intramural plexus, also known as the myenteric plexus or Auerbach's plexus, is primarily associated with the regulation of gastrointestinal motility. It is located between the circular and longitudinal muscle layers of the gastrointestinal tract and plays a key role in coordinating peristalsis and other muscular contractions. This plexus is part of the enteric nervous system, which controls digestive functions independently of the central nervous system. Its proper functioning is essential for effective digestion and movement of food through the digestive tract.
The stomach has three layers of muscle, known as the muscularis externa, which consist of an outer longitudinal layer, a middle circular layer, and an inner oblique layer. These layers work together to facilitate the mixing and churning of food, aiding in digestion. The coordinated contractions of these muscles help propel the food through the stomach and into the small intestine. This unique arrangement allows for effective mechanical digestion.
The phenomenon of increasingly stronger contractions owing to increased stimulus strength is called recruitment. It involves activating more muscle fibers within a muscle to generate greater force in response to a stronger stimulus.
The gastrointestinal (GI) tract or its also known as the alimentary canal.
Movement in reference to digestion refers to the muscular contractions that help propel food through the digestive tract. This movement, known as peristalsis, helps mix food with digestive enzymes and facilitate absorption of nutrients in the small intestine. Inadequate movement can lead to issues like constipation or slowed digestion.
The stomach appears to move like it has a heartbeat due to the rhythmic contractions of the smooth muscles in its wall, a process known as peristalsis. These contractions help mix and propel food through the digestive tract. Additionally, the stomach’s movements can be influenced by the autonomic nervous system and hormones, contributing to the sensation of pulsation. This coordinated activity is essential for effective digestion and nutrient absorption.
Heartburn
It is also known as the ailmentary tract or ailmentary canal.
intrathecal
Peristalsis.
peristalsis
contractions.
The muscular contractions that occur before birth are called Braxton Hicks contractions. These are also known as "false labor" contractions and help to prepare the uterus for the actual labor process. They are typically irregular and can vary in intensity, serving to tone the uterine muscles and promote blood flow to the placenta. Unlike true labor contractions, Braxton Hicks contractions do not lead to cervical dilation.
Food doesn't need gravity to reach the stomach because the digestive system relies on a series of muscular contractions known as peristalsis. These contractions push food down the esophagus and through the gastrointestinal tract, moving it along regardless of orientation. Additionally, the presence of saliva and digestive enzymes facilitates the breakdown of food, aiding its movement. Thus, even in a microgravity environment, food can still be effectively transported to the stomach.
there are muscular contractions in the oesophagus which help to move the food this rhythmic movement is known as PERISTALSIS