Why Is Perianal Itching Significant in the Life Cycle of Pinworms

question 5

Multiple Choice

Why is perianal itching significant in the life cycle of pinworms?

• A) When a host scratches the anus, pinworm larvae enter the bloodstream.
• B) Eggs are trapped under fingernails and transferred to new hosts.
• C) Scratching allows mature worms to break through the surface of the skin.
• D) Transmission of pinworms ends when the host scratches the anus.

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Definitions:

Suborder

A rank in the biological classification that is below order and above family, used in the classification of animals and plants.

Supraorbital Ridges

Bony ridges located above the eye sockets of many vertebrates, which can serve as sites for muscle attachment and protection for the eyes.

Supraorbital Ridge

The prominent bony ridge above the eye socket; ape skulls have prominent supraorbital ridges.

Paranthropus Boisei

An extinct hominin species known for its robust cranial features, large molars, and diet primarily consisting of hard plant material.