Hey bloggers, on Thursday 7th of May we did our first dissection of the term. I was in a group with Lottie and Chris.
Aim: The aim of the dissection was to visually see what we learnt in class about bones, muscles, and joints.
Some Research:
A Chicken wing’s anatomy strongly resembles that of a human. So closely resembles that of a human that if we were to take the skin and flesh off of it leaving only the bones and joints you would see it almost exactly looks like a human’s arm. Talking about a human arm a chicken wing has the same bones, those bones being a Humerus, Radius, Ulna, Carpals, Metacarpals, and weirdly enough Phalanges. They also have the same muscles, the Biceps brachii, and the Triceps these are connected to the bone to allow movement by tendons and ligaments just like a human’s arm! Chickens have Four main joints in their wings. Joint 1: The shoulder joint, this joint is a ball-in-socket joint its functions are similar to that of a humans however it has a more limited range of motion, optimised for flapping. Joint 2: The Elbow joint, This is a hinge joint unlike the shoulder joint this one has even less movement unlike a human this one mainly focuses on the functions of flight and lacks the fine motor skills that we possess. Joint 3: Wrist joint, unlike a humans wrist joint this joint is fused together and their is no independent movement, as it has adapted for flight and needs more structure and rigidity for strength. Joint 4: Finger joints, these joints are hinge-like but limited in fine motor skills, flexibility, and precise movements they mainly serve for balance and support.
The Equipment used:
- surgical scissors
- paper
- gloves
- seeker.
Method:
- Remove the skin of the chicken wing. it should have no skin and reveal the muscles.
- Then look at the muscles and tendons.
- Move the bones to see how the muscles and tendons work.
- Remove all the muscle leaving only the bone and joints.
- Look at the joints, cartilages, and ligaments.
Results: The images below are in order of the steps above.
Discussion: The reason we did this experiment was to understand how the bones, muscles, ligaments, and tendons work through a hands on experience. The science behind the chicken wing is above where it says research.
Over all our dissection went well, the next time we do a dissection I hope to be more careful.
-Till next time.