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This tiny muscle helps you hear by controlling the vibration and movement of small bones in your ear. The smallest muscle is the stapedius, which is deep inside your ear. The largest muscle is the gluteus maximus (the muscle that makes up your bottom). You have all sizes of muscles in your body. The sheets give this muscle tissue a smooth appearance. In smooth muscles, these proteins appear in sheets. In skeletal muscles, these proteins come together to form a spindle shape. Smooth muscles: The proteins actin and myosin also make up smooth muscle fibers. Special cells called cardiomyocytes make up the fibers in cardiac muscles.

Cardiac muscles: These striated muscles look similar to skeletal muscles.

Providers describe skeletal muscles as striated (striped) because of the striped pattern the spindles create together. The bundles of fibers form a spindle shape (long and straight with tapered ends). Actin and myosin are proteins that make up the fibers.

Skeletal muscles: Many individual fibers make up skeletal muscles.

But there are slight differences in their appearance: They do essential jobs like move waste through your intestines and help your lungs expand when you breathe.Īll types of muscle tissue look similar.

These types of muscles work without you having to think about them. Smooth muscles play an important role in many body systems, including the female reproductive system, male reproductive system, urinary system and respiratory system.

Smooth: These muscles line the insides of organs such as the bladder, stomach and intestines.

They help your heart pump blood that travels through your cardiovascular system.

Cardiac: These muscles line the heart walls.

Others move slowly, such as your back muscles that help with posture. Some muscle fibers contract quickly and use short bursts of energy (fast-twitch muscles). Together, they support the weight of your body and help you move. Tendons attach skeletal muscles to bones all over your body.

Skeletal: As part of the musculoskeletal system, these muscles work with your bones, tendons and ligaments.

There are three types of muscle tissue in the body. In order to work, they take cues from other body systems, such as your digestive system or cardiovascular system. Other muscles work involuntarily, which means you can’t control them. You make them move by thinking about moving them. You control some muscles voluntarily with the help of your nervous system (your body’s command center).

Be sure to see your provider regularly to screen for diseases and conditions that can lead to muscle problems. You can keep your muscles strong by maintaining a healthy weight, eating a balanced diet and getting plenty of exercise. Living a healthy lifestyle helps your muscles work like they should. Cardiomyopathy and other kinds of heart disease make it difficult for the heart to pump blood through the body.

More severe disorders can lead to paralysis. These conditions can cause muscle pain, muscle spasms or muscle weakness. Many disorders, injuries and diseases can affect how muscles work.

Your heart is a hard-working muscle that beats thousands of times a day. Other muscles allow you to breathe or digest food. Some muscles help you run, jump or perform delicate tasks like threading a needle. Different types of muscles have different jobs. You have more than 600 muscles in your body. Many stretchy fibers make up your muscles.