Understanding Striated Muscles in Biology

What are striated muscles?

Striated muscles are relatively thin and are found in different shapes and sizes all over our body.

Striated muscles are often called voluntary muscles as they have the ability to contract voluntarily and can be controlled by the brain. They also help us to maintain posture, balance, and even breathing.

What are the different types of striated muscles?

Striated muscles are your voluntary muscles and they have two types: skeletal and smooth.

Skeletal muscles, which are attached to your bones, make up most of your body weight. They allow you to walk, use your hands and move your head. Smooth muscle are found in the walls of the digestive tract, bladder and blood vessels. These muscles contract without conscious thought on a slower time scale than skeletal muscle.

How do striated muscles work?

Striated muscles are defined as muscles that can contract and relax independently. They are classified as the type of muscle that is in parallel with each other since they all contract at the same time, but they can also contract at different times.

In a striated muscle, it is possible to see the individual fibers of the muscle running along its length. The muscle is composed of many cells called myofibrils which are very long strands of proteins called actin and myosin which twist around one another in a helical shape. When these two proteins run together, they create a contraction force which pulls on the fibers within the muscle cell. This causes them to pull on other cells in parallel with them until all of these cells have contracted together to form one larger unit.

What can happen if there are problems with the function of striated muscles?

With the striated muscles not functioning properly, the muscle fibers will not be able to contract and relax as they are supposed to. This can result in a variety of problems with the body, ranging from trembling or jerking muscles to difficulty breathing.

The three main types of striated muscles are skeletal, cardiac, and smooth. The main difference between these is that skeletal and cardiac muscles have a myofibril that is composed of actin and myosin. Smooth muscle cells don’t have this myofibril.

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