Which statement about nonspecific (innate immunity) is true?.

Choice A rationale:

While an LH surge does trigger ovulation, it is not the anatomical event of ovulation.

Choice B rationale:

Ovulation is the event when the Graafian follicle ruptures and releases an ovum.

Choice C rationale:

Blood menstrual flow is part of menstruation, which occurs after ovulation if the ovum is not fertilized.

Choice D rationale:

Crampy abdominal pelvic pain can occur with ovulation, but it is not the anatomical event of ovulation.

Choice A rationale:

Peyer’s patches are lymphoid nodules located in the small intestine and play a role in immune surveillance of the intestinal lumen and in the facilitation of the immune response.

Choice B rationale:

The appendix serves as a reservoir for beneficial gut bacteria. It is a narrow pouch that projects off the cecum in the digestive system.

Choice C rationale:

Adenoids are not known to serve as a reservoir for beneficial gut bacteria. They are located in the upper part of the throat and are part of the immune system, helping to fight off infections and trap bacteria that enter through the nose.

Choice D rationale:

Tonsils are not known to serve as a reservoir for beneficial gut bacteria. They are lymphoid tissues located at the back of the throat and help protect the body from respiratory infections.