122 
HISTOLOGY OF ANIMALS. 
connected, has been described 
as the tendon. If, however, 
the termination of any fasci- 
culus he carefully examined, 
a perfect tendon of white 
fibres will be seen to spring 
from the terminal disc, and 
by this tendon, represented 
by c, in Fig. 102, the fas- 
ciculus is connected with 
the horny shaft. The ten- 
dinous fibres in some of the 
lower animals, as the Mol - 
lusca, are of larger size than those in Mammalia. 
In the Terebratula they are remarkably large, nearly 
straight, more or less flattened, ^ 0 f an inch i n breadth, 
and collected in strong bundles, which present to the 
naked eye a very beautiful silvery aspect. In birds 
the tendons, especially of the legs, are of large size and 
great strength, consisting of large bundles of white 
fibrous tissue, connected together by areolar tissue in 
which the blood-vessels run, as shown in a transverse 
section of one of the long tendons from the Ostrich. 
In some birds the tendons are more or less ossified ; 
and all who may have been so unfortunate as to have 
been helped to the drumstick of a Turkey or Goose, 
must be familiar with the long tendons of these birds, 
which are flattened and tough near their muscular attach- 
ments, but bony near their insertions. 
A B 
a, muscular fibre and tendon 
from rectus muscle of the eye of 
a Cat. b, muscle from the leg 
of a Fly. c, muscular fibre and 
tendon of a Fly. 
