Sublingual gland is situated :
**Core Concept**
The sublingual gland is a major salivary gland located in the floor of the mouth, responsible for producing mucinous and serous secretions that contribute to oral lubrication and digestion.
**Why the Correct Answer is Right**
The sublingual gland is situated under the tongue, specifically in the sublingual fossa, a triangular depression in the mandible (lower jawbone). It is the smallest of the major salivary glands, but plays a crucial role in maintaining oral hygiene and facilitating food breakdown. The gland's location allows it to secrete saliva directly into the oral cavity, where it can mix with food and facilitate swallowing.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because the sublingual gland is not located in the submandibular region, which is a different anatomical area.
**Option B:** This option is incorrect because the sublingual gland is not situated in the parotid gland region, which is located on the sides of the face.
**Option C:** This option is incorrect because the sublingual gland is not located in the lingual frenulum, a small fold of tissue under the tongue that attaches it to the floor of the mouth.
**Clinical Pearl / High-Yield Fact**
The sublingual gland is often overlooked in clinical practice, but its dysfunction can lead to symptoms such as xerostomia (dry mouth) and difficulties with swallowing.
**Correct Answer: C. Under the tongue.**