Bannister LH, Dyson M. Reproductive system. In: Williams PL, ed. Gray's Anatomy. London: Churchill Livingstone; 1995:1857. OCLC 45217979.

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The shape of the human penis is thought to have evolved as a result of sperm competition. [52] Semen displacement is an adaptation of the shape of the penis to draw foreign semen away from the cervix. This means that in the event of a rival male's sperm residing within the reproductive tract of a female, the human penis is able to displace the rival sperm, replacing it with his own. [53] Why Humans Lost Their Penis Bone". Science. 13 December 2016. Archived from the original on 19 June 2022 . Retrieved 30 June 2022.Circumcised penises do not have a foreskin, which means that the glans is always visible. Uncircumcised penises have a foreskin, which often covers the glans, especially when the penis is flaccid. a b c d e f Mautz, B. S.; Wong, B. B. M.; Peters, R. A.; Jennions, M. D. (April 23, 2013). "Penis size interacts with body shape and height to influence male attractiveness". Proceedings of the National Academy of Sciences of the United States of America. 110 (17): 6925–30. Bibcode: 2013PNAS..110.6925M. doi: 10.1073/pnas.1219361110. JSTOR 42590540. PMC 3637716. PMID 23569234. Carlson, Neil. (2013). Physiology of Behavior. Upper Saddle River, New Jersey: Pearson Education, Inc. Although many erect penises point upwards (see illustration), it is common and normal for erect penis to curve in any direction. Many penises are curved in right, left, upwards or downwards direction depending upon the tension of the suspensory ligament that holds it in position. a b Veale, D.; Miles, S.; Bramley, S.; Muir, G.; Hodsoll, J. (2015). "Am I normal? A systematic review and construction of nomograms for flaccid and erect penis length and circumference in up to 15 521 men". BJU International. 115 (6): 978–986. doi: 10.1111/bju.13010. PMID 25487360. S2CID 36836535.

Types of penises: Shape, size, circumcision, and more Types of penises: Shape, size, circumcision, and more

Snell RS. The perineum. In: Snell RS, ed. Clinical Anatomy. Philadelphia, Pa: Lippincott Williams & Wilkins; 2004:430–431. Baltimore, MD Lippincott Williams & Wilkins. 2006. ISBN 9780781791649. Archived from the original on 2019-01-19 . Retrieved 2019-01-17. Center of Disease Control. "DES Update: Consumers". Archived from the original on 2014-03-17 . Retrieved 2013-11-07. a b c d Gallup, G. G.; Burch, R. L. (January 1, 2004). "Semen displacement as a sperm competition strategy in humans". Evolutionary Psychology. 2: 147470490400200. doi: 10.1177/147470490400200105.

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a b "M. K. Skinner (Ed.), Encyclopedia of Reproduction. vol. 1, pp. 367–375. Academic Press: Elsevier". Academic Press. Archived from the original on 2021-02-22 . Retrieved 2019-01-17. A thrombosis can occur during periods of frequent and prolonged sexual activity, especially fellatio. It is usually harmless and self-corrects within a few weeks.

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This photo was taken in the "Arrela Kingdom Romantic Paradise" Sim SLUR maps.secondlife.com/secondlife/Graces/232/29/21 The sim is not big, but it has a lot of highly artistic details. Here you can find hidden romantic Parisian courtyards and beautiful cafes with visitors frozen in time. There are embankments around the river, and there are small cars on the roads. There are small shops on the promenade boulevards. And also here a large park with a carousel, a playground and a fountain with an original sculpture :)) In diabetes, peripheral neuropathy can cause tingling in the penile skin and possibly reduced or completely absent sensation. The reduced sensations can lead to injuries for either partner and their absence can make it impossible to have sexual pleasure through stimulation of the penis. Since the problems are caused by permanent nerve damage, preventive treatment through good control of the diabetes is the primary treatment. Some limited recovery may be possible through improved diabetes control. In 2009 researchers Chen, Eberli, Yoo and Atala have produced bioengineered penises and implanted them on rabbits. [81] The animals were able to obtain erection and copulate, with 10 of 12 rabbits achieving ejaculation. This study shows that in the future it could be possible to produce artificial penises for replacement surgeries or phalloplasties. In 2015 the world's first successful penis transplant took place in Cape Town, South Africa in a nine-hour operation performed by surgeons from Stellenbosch University and Tygerberg Hospital. The 21-year-old recipient, who had been sexually active, had lost his penis in a botched circumcision at 18. [82] Additional images

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Carcinoma of the penis is rare with a reported rate of 1 person in 100,000 in developed countries. Some sources state that circumcision can protect against this disease, but this notion remains controversial among medical circles. [58]