Okay, let's tackle this question about the deep perineal pouch. The question is asking which structure is NOT a content of the deep perineal pouch. First, I need to recall what the deep perineal pouch contains. From my anatomy notes, the deep perineal pouch is a space in the perineum that contains several important structures. Let me list them out.

The main structures include the urethral sphincter muscles—specifically the external urethral sphincter and the compressor urethrae. Then there's the ischiocavernosus and bulbospongiosus muscles. Also, the deep transverse perineal muscles are part of this pouch. The urethra itself, particularly the membranous part in males, is present here. The bulbourethral glands (Cowper's glands) are another component. The dartos muscle? Wait, no, the dartos is part of the scrotum. The superficial perineal pouch has different structures like the bulbospongiosus and ischiocavernosus, but the deep pouch includes the muscles I mentioned earlier.

Now, the options aren't provided, but the correct answer is the exception. Let's think about the structures that are NOT in the deep pouch. The superficial perineal pouch contains the superficial transverse perineal muscle and the bulbospongiosus. The bulbourethral glands are in the deep pouch. The dartos muscle is in the scrotum. The external urethral sphincter is in the deep pouch. So if an option lists the superficial transverse perineal muscle, that would be in the superficial pouch, making it the correct answer here. Alternatively, if the dartos muscle is listed, that's not in the deep pouch either. Wait, but the question is about the deep perineal pouch. So the exception would be a structure that's in the superficial pouch or elsewhere.

Let me confirm the exact contents. The deep perineal pouch includes the external urethral sphincter, compressor urethrae, bulbourethral glands, and the deep transverse perineal muscles. The superficial perineal pouch includes the superficial transverse perineal muscle, bulbospongiosus, and ischiocavernosus. So if one of the options is the superficial transverse perineal muscle, that would be the exception. Another possibility is the dartos muscle, which is in the scrotum. But the question is about the deep perineal pouch. So the answer would be the structure that's in the superficial pouch or another area. Therefore, the correct answer is the superficial transverse perineal muscle, which is not in the deep pouch. The deep pouch has the deep transverse perineal muscle. So the exception is the superficial one. Hence, the correct answer is the option that lists the superficial transverse perineal muscle.

**Core Concept**
The deep perineal pouch is a compartment in the perineum that contains structures critical for urinary and sexual function, including muscles and glands. It is distinct from the superficial perineal pouch, which holds other muscles and connective tissues.

**Why the Correct Answer is Right**
The **superficial transverse perineal muscle** is located in the **superficial perineal pouch**, not

✓ Correct Answer: D. Bulb of penis