Gastrointestinal tract
The Esophagus, in turn, records the endothelium, a tube of muscular tissue that passes directly from the pharynx to the stomach. The esophagus can flex or extend to allow food to pass through. Naturally, it lies behind the trachea and heart and in front of the spinal column; it passes through the muscle key before entering the abdomen. Both sides of the body are closed by muscle doors known as sphincters; at the end, or more, at the distal end of the esophageal sphincter,
human digestive system
The human digestive system as seen earlier.
Encyclopædia Britannica, Inc.
The upper sphincter of the esophageal is made up of round body tissues and remains closed most of the time. Food entering the pharynx clears the sphincter and passes through it into the throat; the sphincter closes quickly to prevent food from supporting. The separation of the muscles in the wall of the peristalsis (peristalsis) moves the food down to the solid tube. The food is pushed forward by the peristaltic wave until it reaches the lower sphincter, which opens, allows food to pass through the stomach, and then closes to prevent stomach fluids and contents from entering the throat.
Extra nerve and facial and head arteries, cardiovascular system, human anatomy, (Netter replacement project - SSC)
QUESTIONS IN BRITAIN
The Human Body
You may know that the human brain is made up of two parts, but what part of the human body is made up of blood? Examine both sides of your mind with these questions of body composition.
Throat disorders include ulcers and bleeding; heartburn, caused by stomach fluids; achalasia, the inability to swallow or transfer food from the stomach to the stomach, caused by the destruction of nerve endings in the walls of the soul; scleroderma, collagen disease; and pain in the muscles of constipation.
In some cervical vertebrae the throat not only serves as a nodular connection between the pharynx and the abdomen but can also serve as a storage area or an auxiliary digestive tract. In many birds, for example, the enlarged throat outside the abdomen forms a wall with small walls, which is a key component of this bird's short-term food storage system. Some birds use this plant to manage their food. Bright light mammals, such as cattle, are generally said to have “four bellies”. In fact, the first three of these chambers (rumen, reticulum, and omasum) are thought to be derived from the esophagus. Large numbers of bacteria and protozoans live in the rumen and reticulum. When food enters the chambers, bacteria begin to digest and boil, breaking down not only protein, starch and fat but also cellulose. Larger, stronger items are periodically cleaned like matches, and after further chewing it is recycled. Gradually the products of microbial action, as well as other microbes themselves, enter the real intestine of the cow and intestines, where digestion and absorption continue. Since cows, like other mammals, do not have the enzymes to digest cellulose, they rely on the digestive function of these insects in the digestive tract. Most of the cellulose in a vegetarian diet, which would not have a healthy diet, was thus made for the cow.
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