The mouth is an oval-shaped cavity inside the skull. The two main functions of the mouth are eating and speaking. Parts of the mouth include the lips, vestibule, mouth cavity, gums, teeth, hard and soft palate, tongue and salivary glands. The mouth is also known as the oral cavity or the buccal cavity.

The digestive system is made up of the gastrointestinal tract—also called the GI tract or digestive tract—and the liver, pancreas, and gallbladder.

Your Digestive System & How it Works – NIDDK

https://www.niddk.nih.gov/health-information/digestive-diseases/digestive-system-how-it-works

Overview of the digestive sys…

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The nervous system is divided into the central nervous system (CNS) and the peripheral nervous system.

Cardiac rhythm is the electrical impulse generated by fibres capable of spontaneously producing and propagating electrical impulse in the myocardium

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Without treatment, high blood pressure, often known as hypertension, can be hazardous. You run the risk of heart attack, stroke, and other complications if you have hypertension.