So there are two
sets of blood-vessels for the liver--one to secrete the bile, and the
other to nourish the organ itself.
The kidneys secrete from the arteries that pass, through them all
excess of water in the blood, and certain injurious substances. These
are carried through small tubes to the bladder, and thence thrown out
of the body.
The _pancreas_, a whitish gland, situated in the abdomen below
the stomach, secretes from the arteries that pass through it the
pancreatic juice, which unites with the bile from the liver, in
preparing the food for nourishing the body.
There are certain little glands near the eyes that secrete the tears,
and others near the mouth that secrete the saliva, or spittle.
These organs all have arteries sent to them to nourish them, and also
veins to carry away the impure blood. At the same time, they secrete
from the arterial blood the peculiar fluid which it is their office
to supply.
All the food that passes through the lower intestines which is not
drawn off by the lacteals or by some of these secreting organs, passes
from the body through a passage called the rectum.
Pages:
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219