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The esophagus contains varying amounts of striated muscle.
The esophagus
The esophagus has two types of muscles. The upper third of the esophagus is composed of striated muscles, while the lower third contain smooth muscles. The muscles in the middle are a mixture of both striated and smooth.
The Esophagus has 9 specific layers, if you are healthy. They are: mucosa, saliva, lamina propria, smooth muscle, papillae, muscularis extenma, striated muscle, and adventa.
The esophagus is primarily composed of two types of muscle fibers: skeletal muscle and smooth muscle. The upper third contains striated (skeletal) muscle, which allows for voluntary control during swallowing. The middle third is a mix of both muscle types, while the lower third is predominantly smooth muscle, facilitating involuntary peristalsis to move food toward the stomach. This arrangement enables efficient transport of food through the esophagus.
There are three types of muscle tissue. Cardiac, which is the heart. Striated, or skeletal muscles and smooth muscle tissue. The smooth muscles create waves that move food down the esophagus and through the intestines. The wave motion is called peristalsis.
Smooth muscles make up most of the esophagus, but the upper portion also contains some voluntary or skeletal muscle. The muscles move in a wave like pattern to move food down into the stomach through a process called "peristalsis". At the distal end is the lower esophageal sphincter, a ring of smooth muscle that controls movement of food between the stomach and esophagus.
M Line
They are striated because striated means kind of stripey and the muscles has stripes of muscle itself.
as it is usual the esophagus has 4 layers in histology this are mucosa containing the stratified squamous non keratinized epithelium,lamina propria and muscularis mucosa a layer of the smooth muscle.then the sub mucosa,then finally the muscularis externa its structure in different parts correspond to swallowing making the muscular structure differ : upper third-striated muscle middle -both smooth and striated muscle inferior third -predominantly smooth muscle the esophagus is covered by the adventitia
Smooth muscle is not striated and is not under voluntary control. Your digestive system contains smooth muscle that is involuntary, which causes the digested food to move along the digestive tract in a motion called peristalsis.
Is there now a CE requirement for medical instruments to have clinical data