Cremaster muscle:
Cremaster muscle is a muscle that covers the testis and the spermatic cord. It is a paired muscle, being one on each side of the body.
The cremaster muscle develops to its full extent only in males while in females it is represented by only a few muscle loops.
In female humans, the cremaster muscle is very small and is looks like the round ligament. In male the cremaster muscle moves the testis, assist healthy & motile sperm.
Origin:
Inguinal ligament
Insertion:
Tunica vaginalis
Nerve supply:
Genital branch of genitofemoral nerve.
Blood supply:
It is supplied by the cremasteric artery (a branch of inferior epigastric artery)
Actions:
raise and lower the scrotum.
