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Cremaster

Other Terms: Cremaster, Muscle of Riolan (cremaster), Musculus cremaster, Muscle crémaster

Muscle parts

None

Latin name

Musculus cremaster (male)

Latin muscle parts

None

Group

Abdominal wall – lateral musculature – middle layer

Etymology

The English term for this muscle name is the muscle that hangs, or suspends. The structure that it hangs is the testis. Cremaster comes from the Greek kremaster meaning “a suspender or hanger,” which comes from the Greek verb kremao meaning “to hang.” This was a term originally coined by Galen in the 2nd Century.

Origin

Looping fibers from the pubic tubercle and the middle of the inguinal ligament as continuations of the internal oblique and transversus abdominis muscles

Insertion

Looping fibers that attach between the internal and external spermatic fasciae of the spermatic cord and testis

Action

Elevates the testis by drawing it closer to the superficial inguinal ring.

Nerve supply

Genital branch of the genitofemoral nerve (L1, 2)

Blood supply

Cremasteric branch of the inferior epigastric artery.

Latin

Musculus cremaster

French

Muscle crémaster

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