Post on 12-Sep-2021
Comparative Vertebrate Anatomy with Carolina’s Perfect Solution®
Specimens
Carolina Biological Supply Company
www.carolina.com
800-334-5551
2008
Burlington, NC
• Showcase Carolina’s Perfect Solution®
• Introduce animal diversity in the vertebrate subphylum
• Use scientific inquiry
• Compare and contrast external/internal anatomy
• Compare and contrast anatomical adaptations
Session Objectives:
Carolina’s Perfect Solution® Specimens
• No formaldehyde odor
• Non-toxic
• Superior quality
• No special ventilation or disposal required
• Use in any classroom or lab
“Carolina’s Perfect Solution® is an excellent preservative and it provides a much better atmosphere for students. We highly recommend it!”
Robert BowdenInstructor in Gross AnatomyWake Forest University Medical Center
Superior Quality & Safety
The Safetyyou expect & the Quality
you deserve!
Simply the Best!
Carolina’s Perfect Solution® Specimens
Unlike some of our Competitors’ Products, Carolina’s Perfect Solution®
specimens:
• Do not attempt to mask a formaldehyde scent with other chemicals.
• Are not fixed initially with formaldehyde and then perfused with another “formalin-free” alternative.
• Do not use other potentially harmful chemicals such as glutaraldehyde in the fixing process.
Take the Carolina’s Perfect Solution® Challenge
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Try one of our Carolina’s Perfect Solution®
specimens. If you are not completely satisfied that we are the BEST, we will credit your account.
Safety Issues
•Personal Protective Equipment:– Gloves, goggles, and lab aprons
•Sharps:– Scalpels and other sharp instruments should be used sparingly. Exploration is better performed with blunt instruments
•Safety Tip:– If you are not using an instrument, set it down.
Additional Animals for Comparison
Carosafe®
Specimens
Prepare To Dissect
Prepare To Dissect
•Safety Equipment
•Dissecting Tray
•Dissecting Kit
•Perfect Solution®
Specimen
Inquiry Based Dissection
Allow
questions to
guide the
investigation.
Observe Coloration
What is the advantage?
External Survey: Guide The Inquiry
• How does the
skin feel?
• What is its function?
• How do scales
protect the perch?
Discussion Questions
• Compare the rat’s
upper extremity
with your arm.
• What are some
differences and
similarities?
Discussion Questions
• Compare the pig’s lower
extremity with your leg.
• Try to locate the pig’s hip,
thigh, knee, calf, ankle,
and foot.
• What are some
differences and
similarities between the
pig’s foot and your foot?
Skeletal Structure
Compare the
positions and
structures of
the bones in the
frog with those
in a human.
External Survey: Guide The Inquiry
• How do the eyes compare
to our own?
• Location?
• How many eyelids can
you find?
• Advantages?
Human Rat
Domain Eukarya Eukarya
Kingdom Animalia Animalia
Phylum Chordata Chordata
Class Mammalia Mammalia
Teaching Taxonomy:
Inquiry and Science Notebooks:
Inquiry and Science Notebooks:
Compare Frogs with Humans
Hair Smooth skin
VERTEBRATES
Produce milk
Bear live young
Metamorphosis
Egg-laying
MAMMALS AMPHIBIANS
Observation Guides Investigation:
Observe several specimens of the
same species.
How do they differ?
Which organisms demonstrate the highest degree of sexual dimorphism?
Sexual Dimorphism:
Determining Gender in Rats
Determining Gender in Pigs
• Visible scrotal sac in the male
• Genital papilla in the female
Determining Gender in Pigs
Note Enlarged Thumb Pad
This is a Male!
Determining Gender in Frogs
Wait and see!
Determining Gender in Perch
Draw and label a cross
section of the
umbilical cord
Clip off tip…
Umbilical Cord:
The Umbilical Cord
Length of Specimen
Approximate Age
Days from Fertilization
4 cm 56 days
20 cm 75 days
25 cm 100 days
30 cm 112 –115 days
Determining Age of Fetal Pig
Preparing the larger vertebrates
Decide on ventral incision style based on gender of your pig
Making the Incisions:
MALE FEMALE
Making the Incisions
Making the Incisions
Making the Incisions
Making the Incisions
Making the Incisions
Guide The Inquiry
1. What is the relationship between organs and systems?
2. What similarities are there between these organs of the pig and those of humans?
3. Compare the frog’s heart and the human heart. How do they differ?
4. Answer the questions posed prior to dissection.
Assessment Idea:
PERCH HUMAN
Scales Hair
Backbone
Kidney
LungsGills
We Can Meet Your Dissection Needs
Top-quality specimens and supplies
We Welcome the Opportunity To Exceed Your Expectations
Additional Resources from Carolina
Carolina™ BioLab® Virtual Lab Series
Guide students through an interactive virtual dissection, teaching internal and external features
Thank you for investing your time and viewing our presentations.
We look forward to helping you with your science education needs!
Carolina Biological Supply Company