ANS 3006C Lecture Notes - Lecture 16: Monogastric, Heart Valve, Electromagnetic Absorption By Water
12 Oct 2016
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The means that an animal uses to bring food to its mouth. The first step in digestion: particle size reduction by mastication. Vertical and lateral action of the jaw. The movement of food and water from the mouth to the first stomach compartment. The opening of the stomach is a sphincter mechanism called the cardiac valve: the mouth forms a bolus and pushes food back to the esophagus, peristalsis. Muscle contractions that move food down the esophagus. Monogastric: simple stomach, seen in humans, swine, and poultry. Monogastric with a functional cecum: seen in horses, elephants, and rabbits. Four stomach compartments: seen in cattle, sheep, and goats. Monogastric digestive system: pigs are omnivores, mouth. Saliva has a ph of around 7. 4. Salivary amylase breaks down starch: stomach. Storage compartment for up to 24 hours. Acidic ph of 2: small intestine. The chief site of food digestion and nutrient absorption. 60 feet in length with a 2. 5 gallon capacity.
