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Dissection of Frog: Digestive and Respiratory Systems
PAKIAYOS PO. SALAMAT. WALA YATA TAYONG PICTURE?
Authors’ Name: Email Address:
Abstract Parts of frog’s digestive and respiratory systems were identified and examined through dissection.
may be dissolved in the skin through
Introduction In
order
to
undergo
life
cutaneous respiration. The necessary
processes, living things need to feed
materials will then be absorbed in the
their cells for energy. Frogs have two
blood stream for the distribution of
body systems to acquire energy. Food is
nutrients.
taken in, digested or broken down into
Methodology
smaller and simpler form and absorbed
Tools needed for dissection (a
into the blood stream by the digestive
dissecting kit containing scalpels, pins,
system. For the food to be converted into
tweezers, scissors, etc.) and materials for
energy, oxygen is needed to burn it.
sanitary
Oxygen is acquired through the lungs or
rubbing alcohol, etc.) were prepared. A
the skin. Air may go through the buccal
preserved frog specimen was prepared
cavity, a series of tubes, then the lungs
and placed on a dissecting pan ventral
for gas exchange or oxygen in the air
side up. Scissors were used move the
purposes
(hand
sanitizer,
abdominal muscles away from the body
digestive juice called bile.
cavity. A cut was made along the
needed for the proper digestion of
midline of the body from the pelvic to
fats. The lungs are spongy organs of
the
or
respiration located under the liver and
horizontal cuts near the arms and legs
heart. The gall bladder is a green sac
were also made. The flaps of the body
underneath the liver. The esophagus is a
wall were moved away and then pinned
tube that connects the buccal cavity and
on the dissecting wax. The parts of
the stomach. The stomach is the first
digestive and respiratory systems were
major site of chemical digestion. Frogs
then identified. Since the specimen used
swallow their meals whole. The pyloric
is a female, large amount of eggs were
sphincter valve regulates the exit of
removed to have a better view of the
digested food from the stomach to the
organs.
small intestine. The small intestine is the
pectoral
girdle.
Transverse
Bile is
tube where food goes after the stomach. The first straight portion of the small
Results and Discussion The organs observed are pinned