*170,20
The urinary bladder is a thin sac with
two lobes.
>S(11),176,171
*171,20
It stores urine, and sits at the bottom
of the body cavity, ready to dump the
urine into the cloaca.
>S(11),176,172
*172,20
The bladder is part of the frog's
excretory system.
>S(11),176,173
*173,20
Like all vertebrates, the frog passes
urine as a way to get rid of certain
kinds of body wastes.
>B(10),176,0
>E(11),176,174
*174,20
The bladder is just a storage site for
the urine.
>E(11),176,175
*175,20
By reabsorbing water from the kidneys
the frog's excretory system serves to
maintain its water balance.
>E(10),176,0
*176,30
Human bladders are bigger, but not in
proportion to body size.
>S(01),0,177
*177,30
Frog bladders can hold enough water to
double the weight of the frog!
>B(00),0,0
>E(01),0,178
*178,30
Unlike most humans, frogs empty their
bladders when picked up!
>E(01),0,179
*179,30
This makes the frog lighter, so it can
hop away faster. It also distracts its
enemy.
>E(00),0,0
*1000