Which landmark of the temporal bone shown in the following image is a zigzag-shaped tunnel that provides passage through the base of the skull for one of the major arteries that supplies the brain?

The styloid process is a slender, pointed projection that extends downward from the temporal bone, serving as an attachment point for muscles and ligaments. While it is an important structure, it does not form a tunnel for arterial passage and lacks the zigzag shape associated with the question.

The external acoustic meatus is a canal that leads from the outer ear to the eardrum, primarily involved in sound transmission. Though it is a prominent feature of the temporal bone, it does not serve as a passage for major arteries and does not exhibit a zigzag shape.

The mastoid process is a rounded bony prominence located behind the ear, which serves as an attachment point for neck muscles. While it is related to the temporal bone's structure, it does not create a tunnel and is not zigzag-shaped, making it irrelevant to the question regarding arterial passage.