Transcript Dissection Frog ~ Digestive System Lab

Frog Dissection AP Bio
Hard Palate
Soft Palate
Maxillary Teeth
• Small, sharp, equal
size
The Vomerine Teeth
• On the roof of the mouth
are two large bulges
where the eyeballs press
down, helping the frog to
swallow.
• Anterior to the two eye
bulges are two knob-like
structures bearing the
vomerine teeth - these
help the tongue to grip
live prey & prevent them
from escaping
Tongue
• Attached to the front of
the mouth
• Sticks out to capture
prey
• Sticky
• When fully extended, it
is as long as its arm!
• Double @ front - more
surface area!
Glottis
• Opening into the
lungs & esphogus
Esophagus
• Muscular tube that
stretches from the
mouth to the
stomach
• Food is pushed
along the tube via.
peristalsis
Liver
• Produces Bile
• Detoxifies blood
• Destroys red blood
cells
• Stores glycogen
• Maintains blood
glucose level
• Produces blood
proteins
Liver
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Gall Bladder
• Stores the bile
(produced in the
liver) & squirts into
the small intestine
• Releases bile
Stomach
• Releases
pepsinogen - which
will convert to
PEPSIN via.
interaction with HCl
• Churns - to increase
surface area
Small intestine
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• Organ in which
macromoleucles
are broken down
via. enzymes
• Diffuses small
molecules into
blood stream to be
transported
elswhere
Pancreas
• Gland organ
• Releases Pancreatic
amylase among
other enzymes into
the small intestine.
Large Intestine
• Removes water, and
salts into the
organism’s blood
supply.
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decompressor
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