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The mouth (also known as the oral cavity) is the first part of the digestive and respiratory systems. It serves as the entry point for food and air, facilitating essential daily functions like eating, breathing, vocalization, and initial digestion.
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The stomach is a muscular, J-shaped organ in the upper abdomen that acts as a temporary storage chamber and processes food. It breaks down food mechanically (via muscle contractions) and chemically (using gastric acid and enzymes) into a semi-liquid mix ture called chyme before passing it to the small intestine.
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The intestine is a winding, muscular tube extending from the stomach to the anus. Its primary functions are to break down food, absorb vital nutrients and water, and eliminate waste
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The liver is a vital, reddish-brown organ located in the upper right quadrant of your abdomen. Weighing about 1.4 kg (3 pounds), it performs over 500 essential functions, including filtering toxins from the blood, producing bile for digestion, and storing energy.