Types of Muscle in the Muscular System
You have 3 different types of muscle: smooth, cardiac, and skeletal.
Smooth
Your smooth muscles, like your cardiovascular muscles, are involuntary. They make up your internal organs, such as your stomach-hyper link, throat-hyper link, small intestine-hyper link, and all the others, except your heart.
Unlike cardiovascular muscles, smooth muscles are generally spherical, as most other human cells are, and each contains one nucleus.
Skeletal
The skeletal muscles are the only voluntary muscles of your body, and make up what we call the muscular system. They are all the muscles that move you bones and show external movement.
Unlike either of the other two classes, skeletal muscles contain multiple nuclei because of its large size, being in strips up to a couple of feet long.
Cardiac
Cardiac muscles are involuntary and found only in the heart. They are controlled by the lower section of the brain called the medulla oblungata, which controlls involuntary action throughout your body. Think about how horrible it would be to have to consciously tell your heart to beat, with the consequence of forgetting being death. What about when you went to sleep!?! But luckily enough, the medulla oblungata does all that for us.
Your heart cells come in long strips, each containing a single nucleus, one of the key factors in determining which of the three classes any particular muscle is. Located at the walls of the heart, its main function is to propel blood into circulation. Contraction of the cardiac tissue is caused by an impuse sent from the medulla oblungata to the SA nerve located at the right atrium (link-circulatory) .
Smooth
Your smooth muscles, like your cardiovascular muscles, are involuntary. They make up your internal organs, such as your stomach-hyper link, throat-hyper link, small intestine-hyper link, and all the others, except your heart.
Unlike cardiovascular muscles, smooth muscles are generally spherical, as most other human cells are, and each contains one nucleus.
Skeletal
The skeletal muscles are the only voluntary muscles of your body, and make up what we call the muscular system. They are all the muscles that move you bones and show external movement.
Unlike either of the other two classes, skeletal muscles contain multiple nuclei because of its large size, being in strips up to a couple of feet long.
Cardiac
Cardiac muscles are involuntary and found only in the heart. They are controlled by the lower section of the brain called the medulla oblungata, which controlls involuntary action throughout your body. Think about how horrible it would be to have to consciously tell your heart to beat, with the consequence of forgetting being death. What about when you went to sleep!?! But luckily enough, the medulla oblungata does all that for us.
Your heart cells come in long strips, each containing a single nucleus, one of the key factors in determining which of the three classes any particular muscle is. Located at the walls of the heart, its main function is to propel blood into circulation. Contraction of the cardiac tissue is caused by an impuse sent from the medulla oblungata to the SA nerve located at the right atrium (link-circulatory) .
Muscle Types
The 3 types of muscle tissue are cardiac, smooth, and skeletal.
Cardiac muscle cells are located in the walls of the heart, appear
striated, and are under involuntary control. Smooth muscle fibers
are located in walls of hollow visceral organs, except the heart,
appear spindle-shaped, and are also under involuntary control.
Skeletal muscle fibers occur in muscles which are attached to
the skeleton.
Cardiac muscle cells are located in the walls of the heart, appear
striated, and are under involuntary control. Smooth muscle fibers
are located in walls of hollow visceral organs, except the heart,
appear spindle-shaped, and are also under involuntary control.
Skeletal muscle fibers occur in muscles which are attached to
the skeleton.