Which of the following is not a content of buccal space?
**Core Concept**
The buccal space, also known as the buccal fat pad, is a fascial space located in the cheek, bounded by the buccinator muscle and the mandible. It contains loose connective tissue, blood vessels, and nerves.
**Why the Correct Answer is Right**
The buccal space is a potential space that can become a pathway for infection or inflammation, particularly in cases of dental infections or trauma. It contains the facial nerve branches, which run through this space to innervate the muscles of facial expression. The buccal space also contains the buccal fat pad, which acts as a cushion and helps to maintain the facial shape.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because the buccal space indeed contains the buccal fat pad.
**Option B:** This option is incorrect because the buccal space is a fascial space that can become a pathway for infection or inflammation, and it does contain blood vessels and nerves.
**Option D:** This option is incorrect because the buccal space is indeed located in the cheek, bounded by the buccinator muscle and the mandible.
**Clinical Pearl / High-Yield Fact**
The buccal space can be accessed through a buccal incision, which is useful in cases of dental infections or trauma. It is essential to identify the facial nerve branches and the buccal fat pad during surgical procedures to avoid damage to these structures.
**Correct Answer:** D.