Anatomy
penis

pe·nis [ pee-nis ]
Subclass of:
Male Genital Organs
Definitions related to penis:
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An external male reproductive organ. It contains a tube called the urethra, which carries semen and urine to the outside of the body.NCI Dictionary of Cancer TermsU.S. National Cancer Institute, 2021
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Male organ of copulation and urinary excretion.CRISP ThesaurusNational Institutes of Health, 2006
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The external reproductive organ of males. It is composed of a mass of erectile tissue enclosed in three cylindrical fibrous compartments. Two of the three compartments, the corpus cavernosa, are placed side-by-side along the upper part of the organ. The third compartment below, the corpus spongiosum, houses the urethra.NLM Medical Subject HeadingsU.S. National Library of Medicine, 2021
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The male organ of urination and copulation.NCI ThesaurusU.S. National Cancer Institute, 2021
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The penile shaft is composed of 3 erectile columns, the 2 corpora cavernosa and the corpus spongiosum, as well as the columns' enveloping fascial layers, nerves, lymphatics, and blood vessels, all covered by skin (see the following images). The 2 suspensory ligaments, composed of primarily elastic fibers, support the penis at its base.WebMD, 2019
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Penis, the 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...Encyclopedia Britannica, Inc., 2020
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