What materials are required for a fetal pig dissection?
What materials are required for a fetal pig dissection?
Materials: preserved fetal pig, dissecting pan, scissors, forceps, blunt probe, twine/string, safety goggles, one pair of disposable latex gloves per dissection day, tape measure.
What is the purpose of the fetal pig lab dissection?
A fetal pig dissection is helpful for anatomy studies because the size of the organs makes them easy to find and identify. It is also interesting to do because a lot of the internal anatomy is similar to humans!
How do you remove a brain from a fetal pig?
Your pig should now be dorsal side up. Remove the skin and muscle from the head and carefully expose the skull. With a pair of scissors, poke a small hole to the anterior portion of the skull directly behind the pinnae (ears)….
Length of Fetus (cm) | Approximate age (days) |
---|---|
4.0 | 56 |
22.0 | 100 |
30 | Full term 112-115 |
How many digits are present in a fetal pig?
17. Note that there are only four toes or digits on each limb as compared to five in humans.
What organ is attached to the umbilical cord in the fetal pig?
placenta
Most of the pig’s external features are familiar to you – ears, nose, eyes, etc. On the belly you will see the umbilical cord which connected the fetal pig to its mother’s placenta.
What dark organ in the abdomen is visible after the first incision?
Carefully cutting through only the skin reveals the underlying abdominal muscles. You can begin to see the dark liver underneath the shiny, transparent peritoneal membrane. Further incisions will reveal the peritoneal cavity encased by the shiny peritoneal membranes.
How are fetal pigs killed for dissection?
At slaughterhouses, pregnant pigs have their bellies cut open and their babies are taken for dissection. Fetal pigs are killed before they even take their first breath.
What are unborn pigs called?
Fetal pigs
Fetal pigs are unborn pigs used in elementary as well as advanced biology classes as objects for dissection.
What is the name of the hole found below the umbilical cord of a male pig?
urogenital opening
If the pig is male, it will have a small urogenital opening immediately behind the umbilical cord. If the pig is female, the urogenital opening will be just behind the anus under the pig’s tail. Only the female has two openings beneath the tail.
How many lobes are there to the pigs liver?
In swine, the liver is situated on the front right side of the abdominal cavity, behind the diaphragm. The shape of the porcine liver is lobular and thick in the centre, becoming thinner at the perimeter of the organ. It consists of four lobes and eight segments.