On both sides submental triangle is bounded by –
**Core Concept**
The submental triangle is an anatomical region in the neck, and its boundaries are defined by specific muscles and structures. Understanding the anatomy of the neck is crucial for various medical procedures and diagnoses. The submental triangle is bounded by the **digastric muscle**, **mylohyoid muscle**, and the **body of the mandible**.
**Why the Correct Answer is Right**
The correct answer is related to the anatomical boundaries of the submental triangle. The submental triangle is indeed bounded by the **digastric muscle**, which has two bellies (anterior and posterior) connected by an intermediate tendon, and the **mylohyoid muscle**, which forms the floor of the mouth. These muscles, along with the **body of the mandible**, define the limits of the submental triangle.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because it does not accurately describe the anatomical boundaries of the submental triangle.
**Option B:** This option is also incorrect as it does not correctly identify the muscles and structures that form the boundaries of the submental triangle.
**Option D:** This option is incorrect because it inaccurately represents the anatomical limits of the submental triangle.
**Clinical Pearl / High-Yield Fact**
The submental triangle is a significant anatomical landmark, especially during surgical procedures in the neck. It contains important structures such as the **submental lymph nodes** and the **sublingual gland**.
**Correct Answer:** D. Digastric, Mylohyoid and body of mandible