Question

List the seven main organs forming the gastrointestinal tract (alimentary canal) in the proper sequence and provide a general function of each organ. List five accessory digestive organs and a general function of each organ.

Answer 1

The alimentary canal comprises the mouth, pharynx, esophagus, stomach, small intestine, large intestine, and anus, each with specific functions in digestion.

Step-by-step explanation:

List of Alimentary Canal Organs and Their Functions

1. Mouth: Begins the process of digestion by mechanically breaking down food with teeth and chemically with saliva.
2. Pharynx: Serves as a passageway for food from the mouth to the esophagus.
3. Esophagus: Transports food from the pharynx to the stomach.
4. Stomach: Continues the mechanical and chemical digestion of food.
5. Small intestine: The primary site of nutrient absorption into the bloodstream.
6. Large intestine: Absorbs water and forms feces.
7. Anus: Excretes feces from the body.

List of Accessory Digestive Organs and Their Functions

• Teeth: Aid in mechanical digestion by breaking down food into smaller pieces.
• Tongue: Helps in manipulating food for chewing and swallowing.
• Salivary glands: Produce saliva, which begins chemical digestion in the mouth.
• Liver: Produces bile to emulsify fats.
• Pancreas: Produces digestive enzymes and bicarbonate to neutralize stomach acid.
• Gallbladder: Stores and concentrates bile from the liver.