Anatomy & Physiology. Materials Gloves, Apron, Goggles Scissors, scalpel, forceps, probe Tray &...
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Transcript of Anatomy & Physiology. Materials Gloves, Apron, Goggles Scissors, scalpel, forceps, probe Tray &...
FROG DISSECTIONAnatomy & Physiology
Materials
Gloves, Apron, Goggles Scissors, scalpel, forceps, probe Tray & grassfrog Safety Reminders:
Tie back long hair Spit gum out Never hold specimen in your hand while
cutting Always cut away from yourself
Step 1: Skin Frog
Do not cut too deep
Skin frog torso and appendages
You can leave frog skin on the head intact
Photograph and
Identify homologous skeletal muscles
HW: Print and hand label with ALL members names on it
Muscles required to identify:
Deltoid Pectoralis Triceps brachii Rectus abdominis External obliques Adductor Sartorius Gastrocnemius Gluteus
Additionally: Cut through the
ventral muscles to veiw internal viscera
Identify as many internal organs as possible
Black and white eggs in the abdominal cavity are characteristic of female frogs
In males the testes are attached to the kidneys
Reason to dissect further….
Interesting Frog Facts:
Males attract females by croaking by fresh water
During Amplexus, the male frog climbs on the females back and wraps his arms around her to stimualte her to lay eggs, he fertilizes the eggs externally
Clean UP
All frog tissues should be disposed of in large trash can
Rinse tray and tools Spray tray and tools Dry and return tray and tools to cart Spray and wipe lab table and sink
Grab review sheets (2) to complete