Components of digestive system with definition
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The major parts of the digestive system:
Salivary glands.-The salivary glands in mammals are exocrine glands that produce saliva through a system of ducts. Humans have three paired major salivary glands (parotid, submandibular, and sublingual) as well as hundreds of minor salivary glands.
Pharynx.-the membrane-lined cavity behind the nose and mouth, connecting them to the oesophagus.or the part of the alimentary canal immediately behind the mouth in invertebrates.
Esophagus-the part of the alimentary canal which connects the throat to the stomach. In humans and other vertebrates it is a muscular tube lined with mucous membrane.
Stomach.-the internal organ in which the major part of the digestion of food occurs, being (in humans and many mammals) a pear-shaped enlargement of the alimentary canal linking the oesophagus to the small intestine.
Small Intestine-the part of the intestine that runs between the stomach and the large intestine; the duodenum, jejunum, and ileum collectively.
Large Intestine-the lower part of the bowels in which water is removed from digested food before it is passed out of the body as solid waste.
Rectum-the final section of the large intestine, terminating at the anus.
Accessory digestive organs: liver, gallbladder, pancreas
Liver-a large lobed glandular organ in the abdomen of vertebrates, involved in many metabolic processes.
Gall bladder-the small sac-shaped organ beneath the liver, in which bile is stored after secretion by the liver and before release into the intestine.
Pancreas-a large gland behind the stomach which secretes digestive enzymes into the duodenum. Embedded in the pancreas are the islets of Langerhans, which secrete into the blood the hormones insulin and glucagon.
Hope this will help you
Thanx
The major parts of the digestive system:
Salivary glands.-The salivary glands in mammals are exocrine glands that produce saliva through a system of ducts. Humans have three paired major salivary glands (parotid, submandibular, and sublingual) as well as hundreds of minor salivary glands.
Pharynx.-the membrane-lined cavity behind the nose and mouth, connecting them to the oesophagus.or the part of the alimentary canal immediately behind the mouth in invertebrates.
Esophagus-the part of the alimentary canal which connects the throat to the stomach. In humans and other vertebrates it is a muscular tube lined with mucous membrane.
Stomach.-the internal organ in which the major part of the digestion of food occurs, being (in humans and many mammals) a pear-shaped enlargement of the alimentary canal linking the oesophagus to the small intestine.
Small Intestine-the part of the intestine that runs between the stomach and the large intestine; the duodenum, jejunum, and ileum collectively.
Large Intestine-the lower part of the bowels in which water is removed from digested food before it is passed out of the body as solid waste.
Rectum-the final section of the large intestine, terminating at the anus.
Accessory digestive organs: liver, gallbladder, pancreas
Liver-a large lobed glandular organ in the abdomen of vertebrates, involved in many metabolic processes.
Gall bladder-the small sac-shaped organ beneath the liver, in which bile is stored after secretion by the liver and before release into the intestine.
Pancreas-a large gland behind the stomach which secretes digestive enzymes into the duodenum. Embedded in the pancreas are the islets of Langerhans, which secrete into the blood the hormones insulin and glucagon.
Hope this will help you
Thanx
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