Final answer:
The shallow recess that surrounds the cervical protrusion into the vagina is called the fornix.
Step-by-step explanation:
The shallow recess that surrounds the cervical protrusion into the vagina is called the fornix. The fornix is the superior portion of the vagina that meets the protruding uterine cervix. It is formed by the outer walls of the anterior and posterior vagina, which are formed into longitudinal columns or ridges.