When you menstruate, your body sheds the lining of the uterus (womb). Menstrual blood flows from the uterus through the small opening in the cervix and passes out of the body through the vagina (see how the menstrual cycle works below). Most menstrual periods last from 3 to 5 days.
The structure of the human alimentary canalThe alimentary canal is a long hollow tube which runs from the mouth to the anus .Together with several other organs, including the liver and the pancreas, it makes up the digestive system. The total length of the human alimentary canal is between 5 and 6 m, from anus to mouth.he serosa is a very thin layer, made up of connective tissue covered with a single layer of thin, smooth closely fitting cells. en833i2424lnnq We can observe in detail each part of the human alimentary canal structure in this diagram. The mouth: Taking food into the mouth is called ingestion.
Organs of the digestive system are divided into two main groups: organs within the alimentary canal and accessory digestive organs. The alimentary canal, which is also called the gastrointestinal (GI) tract or gut, is the entire length of tube that winds through the body from the mouth to the anus.It digests, breaks down and absorbs food through its lining into the blood.Organs within the alimentary canal include the mouth, pharynx, esophagus, stomach, small intestine, and large intestine. It involves a series of steps, but the main idea is that enzymes are secreted into the alimentary canal (GI tract) by accessory digestive glands and the gall bladder that aid in the breakdown of food molecules.