Anatomy of the penis

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The penis is composed of 3 spongy cylinders. The three cylinders consist of paired corpora cavernosa and a single corpus spongiosum. The crural roots of the corpora cavernosa attach at the under surface of the ischiopubic rami as two separate structures.

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Penisthe copulatory organ of the male of higher vertebrates that in mammals usually also provides the channel by which urine leaves the body. The corresponding structure in lower invertebrates is often called the cirrus. The human penis is anatomically divided into two continuous areas—the body, or external portion, and the root.

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Transverse section of the penis. The penis is composed of two corpora cavernosa and one unpaired corpus spongiosum. The corpora contain oddly shaped cavities, which are lined with endothelium.

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Last week, we discussed the myths and facts about female orgasms. Some questions that have probably crossed your mind might include: Why do boys ejaculate? What do testicles actually do besides sit there?

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In this article, we will look at the functions and structure of the penis and how these give rise to certain clinical conditions. Note: In the anatomical position the penis is erect, so the dorsal side is that closest to the abdomen and the ventral side is closest to the testes. The root and body of the penis are spanned by three masses of erectile tissue.

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AIM: To summarize recent advances in human penile anatomy, hemodynamics and their clinical applications. METHODS: Using dissecting, light, scanning and transmission electron microscopy the fibroskeleton structure, penile venous vasculature, the relationship of the architecture between the skeletal and smooth muscles, and erection hemodynamics were studied on human cadaveric penises and clinical patients over a period of 10 years. RESULTS: The tunica albuginea of the corpora cavernosa is a bi-layered structure with inner circular and outer longitudinal collagen bundles.

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The penis acts as the male sex organ as well as the route through which urine, semenand pre-ejaculate leave the body. Over the course of pubertywhich generally begins in young males between the ages of 9 to 14, the penis grows and develops significantly until it reaches its final adult size. The glansor head, of the penis is the cone-shaped structure at the tip of the penis.

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    3 thoughts on “Anatomy of the penis

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