Cremaster
Hip & Pelvis
Raises the testis toward the body for temperature regulation — clinically tested by the cremasteric reflex: stroke the inner thigh and the testis rises.
Function
Elevates testis
Origin
Internal oblique muscle and inguinal ligament region
Insertion
Spermatic cord and testis coverings
Innervation
Genital branch of genitofemoral nerve (L1-L2)