Glans

性器官-男性性器官
The Sex Organs
- The Male Sex Organs

男性外部性器官:阴茎

 

阴茎头
通常,阴茎头比阴茎体要粗,它的形状被比喻为橡树果(glans  拉丁语: acorn 橡树果)(在中国的文化里,阴茎被比喻为乌龟的头,所以被称为龟头——译者注)。事实上,阴茎头是尿道海绵体的延续部分,而且含有尿道的开口。因为光滑的阴茎头表面,尤其在环绕它的边缘,布满着无数的神经末梢,它对触觉非常敏感。出于同样的原因,对于男性来说,它是性愉悦的重要源头。阴茎头的下方通过一个被称为系带的细小组织附着有包皮。阴茎头的背面和包皮的下面有腺体,它们分泌干酪样的物质,称为包皮垢。如果包皮过紧,包皮垢会堆积和刺激阴茎头。无论如何,需要养成良好的个人卫生习惯,每日清洗阴茎头并清除包皮垢。为达此效果,包皮必须翻开。在一些文化里,这个麻烦不会发生,因为通过一个称为包皮环切的简单外科手术包皮被切除了。

左:未行包皮环切的阴茎   Left: Uncircumcised penis
:包皮环切的阴茎      Right: Circumcised penis

The External Sex Organs: The Penis

Glans
The glans is usually slightly thicker than the body of the penis, and its shape has been compared to that of an acorn (glans is Latin for acorn.) Actually it is the extension of the corpus spongiosum, and it contains the external opening of the urethra. Since its smooth surface is studded with innumerable nerve endings, the glans is extremely sensitive to the touch, particularly around its rim. By the same token, it is also an important source of sexual pleasure for the male. The underside of the glans is attached to the foreskin by a thin tissue called frenum. Behind the rim of the glans and under the foreskin there are glands that secrete a cheeselike substance known as smegma. If the foreskin is tight this smegma may accumulate and cause irritation. In any case, good personal hygiene demands daily washing of the glans and removal of the smegma. For this the foreskin has to be pulled back. In some cultures, this problem does not arise because the foreskin is removed in a simple operation called circumcision.

[Course 1] [Penis] [Erection] [Foreskin] [Glans] [Circumcision] [Penis Size] [Does size matter?]