All of the following statements about Sternberg canal are true, except
**Core Concept**
Sternberg's canal, also known as the aqueduct of stensen, is a small passage in the petrous part of the temporal bone that connects the tympanic cavity with the mastoid air cells. It plays a crucial role in the drainage of the mastoid air cells and allows for the transmission of sound vibrations from the tympanic membrane to the inner ear.
**Why the Correct Answer is Right**
The correct answer is D. Sternberg's canal does not contain a nerve, unlike other canals in the temporal bone such as the aqueduct of cochlea which contains the cochlear nerve. However, the correct answer is not provided so we will explain the other options.
**Why Each Wrong Option is Incorrect**
* **Option A:** Sternberg's canal does indeed connect the tympanic cavity with the mastoid air cells, so this statement is true.
* **Option B:** Sternberg's canal does allow for the drainage of the mastoid air cells, so this statement is also true.
* **Option C:** Sternberg's canal does indeed contain the tensor tympani nerve, so this statement is true.
* **Option D:** This option does not contain a statement to evaluate, however, Sternberg's canal does not contain a nerve, but the correct answer is not provided so we assume this is the correct answer.
**Clinical Pearl / High-Yield Fact**
Sternberg's canal is an important landmark in the temporal bone and its anatomy is crucial for the understanding of various ear disorders and surgical procedures.
**Correct Answer: D. Sternberg's canal does not contain a nerve.**