PENIS Flashcards
Structure
The paired corpora cavernosa, which are the ____, prolongate proximally as the crus and attach to the pubic arch. The urethra travels through the corpus spongiosum, with its proximal segment known as the ___. The ____ is an expansion of the corpus spongiosum. The superior surface of the penis during erection is known as the ____ and the inferior surface during erection, containing the urethra, is known as the ____.
The paired corpora cavernosa, which are the erectile bodies, prolongate proximally as the crus and attach to the pubic arch. The urethra travels through the corpus spongiosum, with its proximal segment known as the bulb. The glans penis is an expansion of the corpus spongiosum. The superior surface of the penis during erection is known as the dorsum and the inferior surface during erection, containing the urethra, is known as the ventrum.
The major portion of the body of the penis is formed by the corpora cavernosa as they join beneath the ___. A septum separates the corpora cavernosa but is permeable ___ to allow for free communication between their vascular spaces. This ___ septum allows the two corporal bodies to function physiologically and pharmacologically as a single unit.
The major portion of the body of the penis is formed by the corpora cavernosa as they join beneath the pubis (penile hilum). A septum separates the corpora cavernosa but is permeable distally to allow for free communication between their vascular spaces. This incomplete septum allows the two corporal bodies to function physiologically and pharmacologically as a single unit.
The tunica albuginea is the tough connective tissue layer that envelops the corpora cavernosa and is primarily collagenous with a mean thickness of ___. The tunica albuginea is composed of elastic fibers, which form a tough irregular lattice that is predominantly collagenous with ___. The tunica albuginea becomes ___ to form a groove to accommodate the corpus spongiosum. The tunica albuginea is bilayered with an inner layer with ____, which support and contain the cavernous tissue.
The tunica albuginea is the tough connective tissue layer that envelops the corpora cavernosa and is primarily collagenous with a mean thickness of 2 to 3 mm. The tunica albuginea is composed of elastic fibers, which form a tough irregular lattice that is predominantly collagenous with type I and type III fibers. The tunica albuginea becomes thicker ventrally to form a groove to accommodate the corpus spongiosum. The tunica albuginea is bilayered with an inner layer with circularly oriented bundles, which support and contain the cavernous tissue.
