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Muscle is one of four basic types of animal tissue. There are three types of muscle tissue in vertebrates: skeletal, cardiac and smooth. Muscle is formed during embryonic development, in a process known as myogenesis. During this process, myoblasts (muscle progenitor cells) either remain in the somite to form muscles associated with the vertebral column or migrate out into the body to form all other muscles. Myoblast migration is preceded by the formation of connective tissue frameworks, usually formed from the somatic lateral plate mesoderm.
| Characteristics | Values |
|---|---|
| Muscle tissue type | Skeletal muscle, cardiac muscle, smooth muscle |
| Muscle tissue function | Contraction |
| Muscle tissue composition | Actin, myosin, troponin, tropomyosin |
| Muscle formation process | Myogenesis |
| Muscle progenitor cells | Myoblasts |
| Muscle fibre formation | Myoblasts fuse into elongate skeletal muscle cells |
| Muscle fibre stimulation | Electrical impulses, growth factors |
| Muscle attachment | Bone tendons |
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What You'll Learn
- Muscle is formed during embryonic development, in a process known as myogenesis
- Myoblasts (muscle progenitor cells) either remain in the somite to form muscles associated with the vertebral column or migrate out into the body to form all other muscles
- Myoblast migration is preceded by the formation of connective tissue frameworks
- Muscle tissue contains special contractile proteins called actin and myosin which interact to cause movement
- The primary function of muscle tissue is contraction
Muscle is formed during embryonic development, in a process known as myogenesis
The epaxial muscles in humans are the erector spinae and small intervertebral muscles, which are innervated by the dorsal rami of the spinal nerves. All other muscles, including those of the limbs, are hypaxial and are innervated by the ventral rami of the spinal nerves. During myogenesis, myoblasts (muscle progenitor cells) either remain in the somite to form muscles associated with the vertebral column or migrate out into the body to form all other muscles. Myoblast migration is preceded by the formation of connective tissue frameworks, usually formed from the somatic lateral plate mesoderm. Myoblasts follow chemical signals to the appropriate locations, where they fuse into elongate skeletal muscle cells.
The three types of muscle tissue in vertebrates are skeletal muscle, cardiac muscle, and smooth muscle. Muscle tissue gives skeletal muscles the ability to contract. Muscle tissue contains special contractile proteins called actin and myosin, which interact to cause movement. The primary function of muscle tissue is contraction. The three types of muscle tissue have significant differences, but all three use the movement of actin against myosin to create contraction. In skeletal muscle, contraction is stimulated by electrical impulses transmitted by the motor nerves. Cardiac and smooth muscle contractions are stimulated by internal pacemaker cells, which regularly contract and propagate contractions to other muscle cells they are in contact with.
The stem cells that differentiate into mature muscle fibres are known as satellite cells, which can be found between the basement membrane and the sarcolemma (the cell membrane surrounding the striated muscle fibre cell). When stimulated by growth factors, they differentiate and multiply to form new muscle fibre cells.
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Myoblasts (muscle progenitor cells) either remain in the somite to form muscles associated with the vertebral column or migrate out into the body to form all other muscles
Muscle is a soft tissue and one of the four basic types of animal tissue. There are three types of muscle tissue in vertebrates: skeletal, cardiac and smooth. Muscle tissue gives skeletal muscles the ability to contract. Muscle is formed during embryonic development, in a process known as myogenesis.
During development, myoblasts (muscle progenitor cells) either remain in the somite to form muscles associated with the vertebral column or migrate out into the body to form all other muscles. The paraxial mesoderm is divided along the embryo's length into somites, corresponding to the segmentation of the body (most obviously seen in the vertebral column). Each somite has three divisions: sclerotome (which forms vertebrae), dermatome (which forms skin), and myotome (which forms muscle). The myotome is divided into two sections, the epimere and hypomere, which form epaxial and hypaxial muscles, respectively. The only epaxial muscles in humans are the erector spinae and small intervertebral muscles, and are innervated by the dorsal rami of the spinal nerves. All other muscles, including those of the limbs, are hypaxial, and innervated by the ventral rami of the spinal nerves.
Myoblast migration is preceded by the formation of connective tissue frameworks, usually formed from the somatic lateral plate mesoderm. Myoblasts follow chemical signals to the appropriate locations, where they fuse into elongate skeletal muscle cells. The primary function of muscle tissue is contraction. The three types of muscle tissue (skeletal, cardiac and smooth) have significant differences. However, all three use the movement of actin against myosin to create contraction. In skeletal muscle, contraction is stimulated by electrical impulses transmitted by the motor nerves. Cardiac and smooth muscle contractions are stimulated by internal pacemaker cells which regularly contract, and propagate contractions to other muscle cells they are in contact with.
The stem cells which differentiate into mature muscle fibres are known as satellite cells, which can be found between the basement membrane and the sarcolemma (the cell membrane surrounding the striated muscle fibre cell). When stimulated by growth factors, they differentiate and multiply to form new muscle fibre cells. The primary functions of the skeletal muscle take place via its intrinsic excitation-contraction coupling process. As the muscle is attached to the bone tendons, the contraction of the muscle leads to movement of that bone that allows for the performance of specific movements. The skeletal muscle also provides structural support and helps in maintaining the posture of the body.
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Myoblast migration is preceded by the formation of connective tissue frameworks
Muscle is a soft tissue and is formed during embryonic development, in a process known as myogenesis. The paraxial mesoderm is divided along the embryo's length into somites, corresponding to the segmentation of the body. Each somite has three divisions: sclerotome (which forms vertebrae), dermatome (which forms skin), and myotome (which forms muscle).
During development, myoblasts (muscle progenitor cells) either remain in the somite to form muscles associated with the vertebral column or migrate out into the body to form all other muscles. Myoblast migration is preceded by the formation of connective tissue frameworks, usually formed from the somatic lateral plate mesoderm. Myoblasts follow chemical signals to the appropriate locations, where they fuse into elongate skeletal muscle cells.
The primary function of muscle tissue is contraction. The three types of muscle tissue (skeletal, cardiac and smooth) have significant differences. However, all three use the movement of actin against myosin to create contraction. In skeletal muscle, contraction is stimulated by electrical impulses transmitted by the motor nerves. Cardiac and smooth muscle contractions are stimulated by internal pacemaker cells which regularly contract, and propagate contractions to other muscle cells they are in contact with.
The stem cells which differentiate into mature muscle fibres are known as satellite cells, which can be found between the basement membrane and the sarcolemma (the cell membrane surrounding the striated muscle fibre cell). When stimulated by growth factors, they differentiate and multiply to form new muscle fibre cells.
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Muscle tissue contains special contractile proteins called actin and myosin which interact to cause movement
Muscle is a soft tissue and one of the four basic types of animal tissue. There are three types of muscle tissue in vertebrates: skeletal muscle, cardiac muscle, and smooth muscle. Muscle tissue gives skeletal muscles the ability to contract.
Muscles are formed during embryonic development, in a process known as myogenesis. Myoblasts (muscle progenitor cells) either remain in the somite to form muscles associated with the vertebral column or migrate out into the body to form all other muscles. Myoblast migration is preceded by the formation of connective tissue frameworks, usually formed from the somatic lateral plate mesoderm. Myoblasts follow chemical signals to the appropriate locations, where they fuse into elongate skeletal muscle cells. The stem cells which differentiate into mature muscle fibres are known as satellite cells, which can be found between the basement membrane and the sarcolemma (the cell membrane surrounding the striated muscle fibre cell).
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The primary function of muscle tissue is contraction
Muscle tissue contains special contractile proteins called actin and myosin, which interact to cause movement. Actin moves against myosin to create contraction. In skeletal muscle, contraction is stimulated by electrical impulses transmitted by motor nerves. Cardiac and smooth muscle contractions are stimulated by internal pacemaker cells, which regularly contract and propagate contractions to other muscle cells they are in contact with.
Muscles are formed during embryonic development, in a process known as myogenesis. During development, myoblasts (muscle progenitor cells) either remain in the somite to form muscles associated with the vertebral column or migrate out into the body to form all other muscles. Myoblast migration is preceded by the formation of connective tissue frameworks, usually formed from the somatic lateral plate mesoderm. Myoblasts follow chemical signals to the appropriate locations, where they fuse into elongate skeletal muscle cells.
The stem cells that differentiate into mature muscle fibres are known as satellite cells, which can be found between the basement membrane and the sarcolemma (the cell membrane surrounding the striated muscle fibre cell). When stimulated by growth factors, they differentiate and multiply to form new muscle fibre cells.
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Frequently asked questions
Muscle is a soft tissue, one of the four basic types of animal tissue. There are three types of muscle tissue in vertebrates: skeletal muscle, cardiac muscle, and smooth muscle.
Muscle is formed during embryonic development, in a process known as myogenesis. Myoblasts (muscle progenitor cells) either remain in the somite to form muscles associated with the vertebral column or migrate out into the body to form all other muscles.
The three types of muscle tissue are skeletal, cardiac and smooth. All three use the movement of actin against myosin to create contraction.
The primary function of muscle tissue is contraction. Skeletal muscle tissue is striated, consisting of elongated, multinucleate muscle cells called muscle fibres, and is responsible for movements of the body.
The stem cells that differentiate into mature muscle fibres are known as satellite cells.
