Oral cavity

Definition

The oral cavity, also known as the mouth, is the initial segment of the digestive system. It is responsible for the intake and mechanical breakdown of food through chewing and mixing with saliva.

5 Must Know Facts For Your Next Test

1. The oral cavity includes structures such as teeth, tongue, and salivary glands.
2. Saliva in the oral cavity contains enzymes like amylase that begin the chemical digestion of carbohydrates.
3. Teeth play a crucial role in mechanically breaking down food into smaller pieces.
4. The tongue helps in manipulating food and is essential for tasting.
5. The hard palate forms the roof of the mouth, separating it from the nasal cavity.

Review Questions

• What role do salivary glands play in the oral cavity?
• How does the tongue contribute to digestion in the oral cavity?
• Name two structures found within the oral cavity and their functions.

Related terms

Pharynx:

The pharynx is a muscular tube that connects the mouth to the esophagus and serves as a pathway for food and air.

Esophagus:

The esophagus is a muscular tube that transports food from the pharynx to the stomach using rhythmic contractions called peristalsis.

Salivary Glands: Salivary glands are exocrine glands located around the mouth that produce saliva, which aids in digestion and keeps the mouth moist.