18 June Thursday 2026
1. Why do we use models? What are some examples?
- We use these models because they share many genes, metabolic pathways, and organ systems with humans. Some other examples of model organisms are a Fruit fly-Used widely in genetics and developmental biology.
2. Steps that the teacher took.
- Although I chose not to watch the dissection, he briefly explained the steps during the dissection.
- Grab sanitary materials
- Put on gloves
- Cut open the rat with a scalpel-the flaps of the skin are pulled away to show organs inside
- Examine where heart, small intestine, an reproductive system are.
- Then after observing it, clean up equi
From site:
a) Examine the rat-Rat are gnawing animals:loves to chew food that is hard. What teeth does this suggest. Male rats have a visible teste, Female rats have visible nipples.
b) Deeper examination-Carefully cut the skin away down the belly of the rat to expose the muscles. Use the tweezers to lift the skin away from the muscles, and cut it with scissors.
c) Open the rat-Carefully open the belly using the scalpel. Insert the blunt end of scissors into the body and cut downwards. Use scissors to cut both sides of the rat and open the rat.
3.How are the sex of the rats identified?
- The sex of the rats is identified by the space between the anus and the genital, and the nipples on the belly.
4. What are some of the organs you see involved in digestion?
- The Heart, Liver, Esophagus, and the small intestine.
Link to photos:
Small description of photos: This is a rat dissection, we have done this because it shows a great understanding and visual sight of many organs, this rat helps set a good example as it has many genes, metabolic pathways and organ systems that is very similar to a human organ anatomy.
Thanks for reading my blog post, have a great day!