The spermatic cord is
a layer of smooth muscle in the skin of the scrotal sac.
a dense layer of connective tissue that surrounds the testis.
a narrow opening that links the scrotal chamber with the peritoneal cavity.
the external marking of the boundary between the two chambers of the scrotum.
a bundle of tissue that contains the ductus deferens, blood vessels, nerves, and lymphatics that serve the testis.