Examlex
If Sam is typical of most sexually active Americans,he may be among the _____ of people who are infected with at least one strain of HPV during their lifetime.
Sacrum
A large, triangular bone at the base of the spine, where it is inserted between the two hip bones.
Anorectal Junction
The area where the anal canal meets the rectum, important in the study of gastrointestinal function and disorders.
Rectum
The final section of the large intestine, terminating at the anus, where feces are stored before being expelled.
Anal Canal
The final segment of the digestive tract through which feces are excreted from the body.
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