Cremaster muscle

Cremaster muscle
The cremaster muscle appears as a thin layer just superficial to the tunica vaginalis
Details
OriginInternal oblique
InsertionTunica vaginalis
ArteryCremasteric artery
NerveGenital branch of genitofemoral nerve
ActionsRaise and lower the scrotum
Identifiers
Latinmusculus cremaster
TA98A04.5.01.018M
A09.3.04.003
TA22374, 3617
FMA21531
Anatomical terms of muscle

The cremaster muscle is a paired structure made of thin layers of striated and smooth muscle that covers the testicles and the spermatic cords in human males. It consists of the lateral and medial parts. Cremaster is an involuntary muscle, responsible for the cremasteric reflex; a protective and physiologic superficial reflex of the testicles. The reflex raises and lowers the testicles in order to keep them protected. Along with the dartos muscle of the scrotum, it regulates testicular temperature, thus aiding the process of spermatogenesis.[1]

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