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The penis is the man' make-love organ. The
penis body is composed by the penis sponge body and the urethra
wadding body, has the rich blood vessel, the nerve, æ·‹å·´ç®?
Penis coronal ditch place innervation richest, the sensitivity
is highest. The penis coronal ditch once accepted the nature to
stimulate can through primary 勃起ä¸æž¢ form the integrity the
nerve reflex arc, caused the penis at will not or erects at will,
moreover could continue the quite long time, completed the sexual
intercourse activity. Ancient times the person the male penis took "god" the symbol,
thought the penis is the race multiplys the most important organ.
The modern people regard as the penis male "male character" the
symbol. Human's penis and the stature height, degree of stoutness, the
five senses size and so on equally have the multitudinous difference,
the length not one, thick is thin is uneven. The domestic
history æˆç¤¼ once determined 1,412 examples China healthy masculine
youth's penis size and 126 examples healthy masculine penis erection
length. The result indicated, when habit the most length is 14.5
centimeters, shortest 4 centimeters, average 8.375 centimeters;
Perimeter greatest 12 centimeters, smallest 4.5 centimeters,
average 8.3 centimeters. When erection most length 16
centimeters, shortest 9 centimeters, average 12 centimeters;
When erection perimeter greatest 14 centimeters, smallest 8
centimeters, average 10.75 centimeters. Investigation the and so
on Liu Guozhen 1,000 examples normal grown-up man's penis length is:
Under the habit the length scope is 4.9 - 8.6 centimeters, the
average 6.55 centimeters, most length 10.6 centimeters, shortest 3.7
centimeters. Wu Weicheng and so on carries on the survey to
2,547 examples 16 - 40 year old of male university student penis, its
length mean value is 7.43 centimeters, the week diameter equally is
8.17 centimeters; The penis pulls the long average 13.34
centimeters, with erection length 13.08 centimeter similar which
calculates, after therefore the consideration pulls long may represent
the erection the length. Obviously the different author's
measurement result also has the certain difference, its result also
receives influence and so on area, nationality. In addition, the
identical person's penis length is inconstant under the habit, like
anxious, cold or serious is weary when all may cause the penis
contraction. |