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Move A Muscle

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Take apart and rebuild the arm model. Can you identify the bicep and tricep muscles?

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The bicep and tricep muscles work together and are known as an antagonistic pair – when one muscle relaxes the other contracts. When you bend your arm at the elbow towards your body, the bicep contracts, pulling the lower arm up whereas the tricep relaxes and straightens. To straighten your arm out again, the tricep contracts with the bicep relaxing .

Muscles. What are they good for?

Muscles help us to move our bodies and support our posture. They also help to regulate our temperature- they can be used to generate heat or even to raise hairs on our bodies in order to trap air. Muscles are also involved in moving substances such as food and blood around the body.

Types of Muscle

The muscles in our body can be separated into 3 main groups.

1. Skeletal muscles are most often what we think of when we think of "muscles". Skeletal muscles connect directly to the bones via tendons and allow us to move our bodies. These are stimulated by motor neurons and tire more rapidly than other types of muscle.

2. Smooth Muscles. These muscles are found along the lining of our blood vessels and intestines. These contract slowly and are responsible for maintaining the flow of fluids along tissue walls.

3. Cardiac Muscle. The final type of muscle we have is called cardiac muscle. This is only found in the heart and never tires!

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Look Closer

Welcome to Look Closer, Techniquest's brand new digital tool. We're trialling Look Closer as a way of offering you a closer look at the science demonstrated by many of our exhibits. You'll find visitor sheets, videos, articles on contemporary science as well as fun trails to navigate your way around the exhibition space.

Speak to our Science Communicators to find out more.