Trout Dissection-Part 1: name
all the fins and their function
4.
3.
2.
1.
5.
6.
Fold back the operculum to expose the four ____
and the ____________. Why are the gills so red
in color?
Identify the eye. Like all vertebrate eyes, the fish
eye is a “_____________.” A camera eye has a
__________________________.
Identify the ____________, a row of sensory
cells that enables the trout to sense vibrations in
the water. It is like an ear.
Now it’s time to begin identifying the various
organs. Find the spleen and intestines.
Where is the liver?
Where is the stomach?
Find the delicate _______. In most cases it will
be torn. The swim bladder fills with various
amounts of gas. This changes the _______ of
the trout so it can change its _____ in the water.
Above the swim bladder, and pressed against the
backbone are the _______. The kidneys
________ nitrogenous wastes.
Flip over the liver and find the ________. The gall
bladder stores a yellowish liquid known as ____.
Find the _____. The fish has a _________heart
(one atrium and one ventricle.) A mammal, on
the other hand, has a ______________ heart.