Chicken Wing Lab Information
Upper Wing Muscles
What structures do these correspond to in humans?
The upper and lower wing correspond to the upper arm, elbow and lower arm in a human.
What happens when you tug on these muscles?
When you tug on the muscles one relaxes (the tricep which is colored green in the image to the left) and one contracts
and hardens, (the bicep, colored orange) If you pulled back the other way the opposite muscles would flex and
extend.
What muscles do they correspond to in humans?
The muscles correspond to the biceps and triceps in the human upper arm.
In the image above the tricep is the extensor and the bicep is the flexor. This is opposite when the arm is in the
opposite direction.
Lower Wing Muscles
What happens when you tug on these muscles?
The lower wing is made of the ulnaris and radialis longus. When you tug from the wing-tip upwards the ulnaris
contracts and the radialis longus extends. When you pull downwards the muscles swap and the ulnaris extends and
radialis longus contracts.
What is the name of the tissue that connects muscle to bone?
The tissue is called a tendon.
Describe what it looks like.
A shiny white strip that connects the bone to the muscle. It is visible in this photo.
What is the tissue that connects the bones in the elbow joint called?
The tissue is called a ligament.
What kind of joint is this?
The elbow joint is called a hinge joint.
What kind of joint connects the wings at the shoulder?
A ball and socket joint. You can see the ball in this photo.
Describe the cartilage that lines the joint.
Cartilage is a hard and slippery substance that coats the bone: kind of like a shell except a bit softer. It reduces friction
between the bones in a joint.
What bones are found in the chicken wing?
The humerus, radius and ulna are found in the chicken wing.