**Question:** The point marked with arrow in sagittal plane of mandibular movement depicts:

- A. The first molar
- B. The ramus of the mandible
- C. The condyle
- D. The symphysis menti

**Core Concept:**

In the sagittal plane, mandibular movement involves the opening and closing of the jaw. The mandible, also known as the lower jaw, comprises several key anatomical structures that contribute to its movement. These include the first molar, the ramus, the condyle, and the symphysis menti.

**Why the Correct Answer is Right:**

The correct answer, **C. The condyle**, is the right choice because the condyle is a bony prominence located at the articular end of the temporal bone of the skull. It articulates with the glenoid fossa of the opposing maxilla (upper jaw) to allow for the smooth movement of the mandible in the sagittal plane.

**Why Each Wrong Option is Incorrect:**

A. **The first molar (Option A)** is a tooth located at the distal side of the mandible and does not play a direct role in the movement of the mandible in the sagittal plane.

B. **The ramus of the mandible (Option B)** is the lower part of the mandible, connecting the body of the mandible to the condyle. It is not the point of movement in the sagittal plane.

D. **The symphysis menti (Option D)** is the area where the two maxillae (upper jaws) meet. It does not involve in the movement of the mandible in the sagittal plane.

**Clinical Pearl:**

Understanding the anatomy and movement patterns of the mandible is crucial for clinicians, as it impacts the diagnosis and management of various oral and facial disorders. The condyle plays a vital role in the proper functioning of the temporomandibular joint, which is crucial for speech, eating, and general facial harmony.

**Correct Answer: C. The condyle** is the correct answer because it is the primary point of contact between the mandible and the maxilla, allowing for smooth movement in the sagittal plane. The condyle articulates with the glenoid fossa of the maxilla, facilitating the opening and closing of the mouth. This joint movement is essential for normal mandibular function, including speech, eating, and facial harmony.