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Male Reproductive Tract - Horse Anatomy (view source)
Revision as of 12:44, 26 November 2012
, 12:44, 26 November 2012→Penis and Prepuce
==Penis and Prepuce==
==Penis and Prepuce==
The penis is the male copulatory organ. It is formed from three parts; two Corpora cavernosa, comprising of cavernous tissue and a connective tissue sheath the tunica albuginea, and the single Corpus Spongiosum which contains the urethra encased in a vascular tissue sleeve. The horse has a musculovascular penis.
===Corpus Cavernosum===
The corpus cavernosum is made up from the paired columns of cavernous tissue surrounded by connective tissue known as the crura of the penis or corpora cavernosa.
===Corpus Spongiosum===
The corpus spongiosum is a vascular tissue sleeve surrounding the urethra. It commences at the bulb of the penis as an enlargement of the spongy tissue of the pelvic urethra. At the end of the penis the corpus spongiosum expands over the distal end of the corpus cavernosum to form the '''Glans penis''', bringing the urethra to the extremity of the penis. The glans penis is highly populated with sensory nerves.
===Glans Penis===
===Prepuce===
The prepuce is the skin sheath that conceals the penis when it is flaccid and is formed by an invagination of the abdominal skin. The prepuce is hairless and contains many '''smegma''' secreting glands important for lubrication between the shaft of the penis and the prepuce during copulation. Within the prepuce are varying amounts of striated muscle fibres; the '''cranial prepucial muscles''' responsible for retracting the prepuce and the '''caudal prepucial muscles''' responsible for protracting the prepuce.
===Muscles of the Penis===
==Accessory Sex Glands==
==Accessory Sex Glands==