Passavant’s ridge is formed by-
**Core Concept**
Passavant's ridge is an anatomical structure related to the **palatopharyngeal muscle**. It plays a role in the function of the **soft palate**. The formation of Passavant's ridge is crucial for understanding certain aspects of **otolaryngology** and **speech pathology**.
**Why the Correct Answer is Right**
The correct answer is related to the **palatopharyngeal muscle**, which is involved in the formation of Passavant's ridge. This muscle helps to elevate the **pharynx** and contributes to the closure of the **nasopharynx** during swallowing.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect as it does not relate to the formation of Passavant's ridge.
**Option B:** Similarly, this option is not relevant to the anatomical structure in question.
**Option C:** This option is also incorrect as it is not associated with the **palatopharyngeal muscle**.
**Clinical Pearl / High-Yield Fact**
Passavant's ridge is an important anatomical landmark in **otolaryngology**, particularly in the context of **cleft palate** repair and **velopharyngeal insufficiency**. Understanding its formation and function can aid in the diagnosis and management of related disorders.
**Correct Answer:** D. Palatopharyngeal muscle