why do we have a uvula

The uvula helps keep the throat moist, guides food and liquid while swallowing, and contributes to certain speech sounds, though its full purpose is still not completely understood.

What the uvula is

The uvula is the small, fleshy, teardrop-shaped tissue that hangs from the back of the soft palate at the top of the throat.

It is made of connective tissue, small muscles, and glands that can secrete a lot of thin saliva.

Main functions

• Moisturizing: It produces saliva that helps keep the mouth, soft palate, and throat lubricated, which seems to be one of its primary roles.

• Swallowing: During swallowing, the soft palate and uvula move upward and backward to block the passage to the nose so food and drink do not go up into the nasal cavity.

• Speech: In some languages (for example, French, German, Arabic, Hebrew), the uvula helps form specific consonant sounds known as uvular sounds.

Extra roles and theories

Some tissue in and around the uvula participates in immune defense, helping the body respond to germs entering through the mouth and throat.

A well-known theory from medical literature suggests the uvula may “baste” the throat, swinging back and forth and spreading saliva to keep it well lubricated.

Problems when it misbehaves

A swollen uvula (uvulitis) can happen with infections, allergies, or irritation and may cause sore throat, gagging, or trouble swallowing.

An unusually long or bulky uvula can contribute to snoring or obstructive sleep apnea, and in select cases doctors may remove part or all of it to improve breathing.

Information gathered from public forums or data available on the internet and portrayed here.