Henry Gray (18251861). Anatomy of the Human Body. 1918.
peculiar odor, and is beset with thinly scattered, crisp hairs, the roots of which are seen through the skin.
The Dartos Tunic (tunica dartos) is a thin layer of non-striped muscular fibers, continuous, around the base of the scrotum, with the two layers of the superficial fascia of the groin and the perineum; it sends inward a septum, which divides the scrotal pouch into two cavities for the testes, and extends between the raphé and the under surface of the penis, as far as its root.
FIG. 1144 The scrotum. The penis has been turned upward, and the anterior wall of the scrotum has been removed. On the right side, the spermatic cord, the infundibuliform fascia, and the Cremaster muscle are displayed; on the left side, the infundibuliform fascia has been divided by a longitudinal incision passing along the front of the cord and the testicle, and a portion of the parietal layer of the tunica vaginalis has been removed to display the testicle and a portion of the head of the epididymis, which are covered by the visceral layer of the tunica vaginalis. (Toldt.) (See enlarged image)
The dartos tunic is closely united to the skin externally, but connected with the subjacent parts by delicate areolar tissue, upon which it glides with the greatest facility.
The Intercrural Fascia (intercolumnar or external spermatic fascia) is a thin membrane, prolonged downward around the surface of the cord and testis (see page 411). It is separated from the dartos tunic by loose areolar tissue.
The Cremaster consists of scattered bundles of muscular fibers connected together into a continuous covering by intermediate areolar tissue (see page 414).