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Male Reproductive Tract - Horse Anatomy (view source)
Revision as of 13:06, 26 November 2012
, 13:06, 26 November 2012→Root
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 penis can also be divided into the '''root''', '''body''' and '''glans'''. The horse has a musculovascular penis. In the '''musculovascular penis''', there is only a small amount of connective tissue, allowing them to be flaccid when not erect. Erection is accomplished by engorgement of the tissue with blood and a relatively larger ammount of blood is required to achieve erection than for a fibroelastic penis (ruminants, boar). Engorgement with blood increases the length and diameter of the penis.
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 penis can also be divided into the '''root''', '''body''' and '''glans'''. The horse has a musculovascular penis. In the '''musculovascular penis''', there is only a small amount of connective tissue, allowing them to be flaccid when not erect. Erection is accomplished by engorgement of the tissue with blood and a relatively larger ammount of blood is required to achieve erection than for a fibroelastic penis (ruminants, boar). Engorgement with blood increases the length and diameter of the penis.
===Root===
===Root===
The root of the penis is the most proximal part, attached to the '''ischial arch'''. It consists of the '''crura''' and '''bulb'''. The '''crura''' consist of a '''cavernous tissue''' core surrounded by '''tunica albiguinea'''. The two crura converge to form the body of the penis. The '''bulb''' of the penis is an expansion of the '''corpus spongiosum''' around the pelvic urethra. The bulb lies between the two crura, close to the ischial arch.
===Body===
===Body===
====Corpus Cavernosum====
====Corpus Cavernosum====