OF THE BLADDER AND PROSTATE. 
45 
Fig. 35. Horizontal section of cervix and prostate in adult male. 
a. Longitudinal fibres from right lateral wall of bladder passing across to left 
lateral aspect of prostate (d). 
c. Longitudinal fibres from left wall of lateral bladder passing to right lateral 
aspect of prostate (b). 
m. Some of the terminal loops of the posterior figure-of-eight fibres. 
o. Oblique passage of urethra. 
Fig. 36. Eight lateral view of heifer’s bladder in a state of contraction. Shows anterior 
(a b) and posterior (op) longitudinal fibres raised in the form of ridges. The 
lateral ridge (s) is less strongly marked than those marked a b, op. 
m. Oblique and very oblique or circular fibres mixed up with the longi- 
tudinal. 
Fig. 37. Horizontal section of cervix and prostate nearer centre of gland (male). 
a. Longitudinal fibres from right lateral wall of bladder proceeding to right 
side of prostate (b) and across to left side of bladder ( c ). 
c. Longitudinal fibres from left lateral wall of bladder proceeding to left side 
of prostate (d) and across to right side of bladder (a). 
n. Peculiar stellate arrangement of fibres. 
Fig. 38. Posterior view of cat’s bladder in the contracted state, showing longitudinal 
fibres (a b, c d, op) elevated into ridges; the central posterior ridge (op) 
having oblique fibres (g t) proceeding from beneath it. 
PLATE Y. 
Diagram 1 represents in outline the various sets of fibres occurring on the anterior 
aspect of the bladder, as seen in layers 1, 2, 3, & 4. 
ab. Longitudinal or vertical fibres forming layer 1. 
c def. Slightly oblique spiral figure-of-eight fibres embracing urachus (x) and 
urethra (b) posteriorly and forming layer 2. 
ghij. Oblique spiral figure-of-eight fibres embracing upper third of bladder 
and lower portion of cervix posteriorly and forming layer 3. 
Jclmn. Very oblique spiral figure-of-eight fibres embracing lower two-thirds 
of bladder and upper portion of cervix posteriorly, and forming the 
fourth or central layer. The fibres of this layer enter principally into 
the formation of the sphincter, and, contrary to the received opinion, cross 
each other at very obtuse vertical angles. 
Diagram 2 shows the same as diagram 1, and, in addition, the manner in which the 
sphincter and fourth or circular layer is formed posteriorly. 
gj. Terminal expansion or loop representing the spiral oblique fibres which 
spread out on the upper third of the bladder posteriorly, and assist in 
forming the central, transverse, or circular layer in this direction. Its 
