The body excretes various substances through the skin, liver, and alimentary canal. Through the skin, it primarily eliminates sweat, which contains water, salts, and small amounts of urea. The liver processes toxins and metabolic waste, excreting bile, which contains bilirubin and cholesterol. The alimentary canal removes undigested food and waste products, including fiber and other non-absorbable substances.
Smooth Muscle in the wall of the alimentary canal can contract to produce two types of movements 1. Churning: Churning Mixes substances in the canal 2. Peristalsis: Propels substances through the body.
For food to properly pass through the alimentary canal, digestion must first occur. The process of moving food through the alimentary canal is called propulsion.
colon
Food in its varying states of digestion is moved through the hollow alimentary canal by means of a series of muscular contractions known as peristalsis, which squeezes the alimentary canal, in much the way that you would squeeze a tube of toothpaste to move toothpaste through the tube.
The muscular movement of the intestinal canal is called peristalsis.
the serosa
because of anus
stomach
The rectum on a pig is at the end of the alimentary canal under the tail. It allows the pig to excrete undigested waste materials.
Muscular layer
What are the other names in medicine for the alimentary canal?
The alimentary canal or the gastrointestinal (GI) tract.