testicles (balls)

Part of the male reproductive system located in the scrotum, a bag of skin that holds and helps to protect the testicles. They are responsible for making sperm and are also involved in producing a hormone called testosterone.

test/s

A procedure performed on a person’s bodily fluids (e.g. blood, cells, tissue), or on the person him/herself, to help detect, diagnose or monitor a disorder or disease.

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