*200,22
Located near the heart, the frog's
reddish-brown liver takes up almost a
third of the body cavity. It has three
lobes.
>S(11),205,201
*201,22
The liver doesn't digest food, but
it's considered part of the digestive
system.
>S(11),205,202
*202,22
Why? Among other tasks, the liver makes
bile, a digestive juice.
>B(10),205,0
>E(11),205,203
*203,22
In addition to its digestive role, the
liver helps maintain the balance of
nutrients in the frog's blood.
>E(11),205,204
*204,22
It filters out any excess nutrients and
other unwanted substances.
>E(10),205,0
*205,32
In humans and frogs--and in all
vertebrates--the liver has a similar
structure.
>S(01),0,206
*206,32
Like frog livers, human livers are lobed
and large.
>B(00),0,0
>E(01),0,207
*207,32
The bile secreted by a human liver is
pretty much the same as a frog's. Both
liquids are yellowish-green and digest
fat.
>E(00),0,0
*1000