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OF THE DIVISIONS OF THE HUMAN BODY. 51
ference. Its shape is that of a cylinder, not perfectly
regular,
Fig. 21.
with a soft, delicate cushion, called the glans
penis, at the end. This is
the most sensitive portion of
the organ, and in performing
the sexual function, is the
seat of exquisite pleasure.
A soft skin loosely covers the
organ, so as to be movable,
and to fall down in a fold, so 4IJ
as partly, and in some
5
cases
wholly, to cover the penis.
glans
1. Glans penis. 2. Orifice of ure
thra. 6. Corpus
Bulb.
cavernosum. 8.
The internal structure of
the penis is very curious.
In repose, it is small, soft,
flabby, and easily compressi
ble; but when in vigorous
erection, it is distended, hard,
and unbending. The change
from one state to the other vertical section of the penh
AND URETHRA.
occurs in a moment, at a
word, a thought,
■MTi"iii?ririiI
or a touch. The nature of this
Fig. 22.
ARTERIES OF THE PENIS INJECTED.