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Muscle tissues

Muscle tissues

The three types of muscle found in the human body are the smooth, the striated and the cardiac muscle.

Biology

Keywords

muscle tissue, tissue, smooth muscle, cardiac muscle, striated muscle, skeletal muscle, muscle function, muscle fiber, myocyte, fusiform muscle cell, peristalsis, human, animal tissues, biology

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Questions

  • In which type of muscle tissue are actin and myosin unorganised within the cells?
  • Which type of muscle is connected to the bones?
  • Which type of muscle tissue is composed of with spindle-like, elongated cells?
  • Is it true that cardiac muscle tissue is composed of non-branched, striated fibers?
  • Which muscle type is very strong and resistant to fatigue?
  • Is it true that striation is characteristic only of skeletal striated muscles?
  • Which type of muscle plays a role in human locomotion?
  • Where can Eberth's lines be found in the body?
  • Is it true that skeletal muscle tissue is composed of multinuclear muscle fibers in which cells are not separated?

Scenes

Location of tissue types

  • spindle-like muscle cell - Actin and myosin, the proteins responsible for the contractions of the muscle are unorganized within the cells, therefore the muscle is unstriated.
  • nucleus - Their shape is elongated, they are located in the center of the cell.
  • Eberth's lines - Cardiac muscle cells form fibers. The lines between the cells are called Eberth´s lines.
  • nucleus - They are located in the center of the cells.
  • branching muscle fiber - The elongated, branching muscle cells form fibers. Actin and myosin, the proteins responsible for the contractions of the muscle are organized within the cells, therefore the muscle is striated.
  • multinuclear fiber - Striated muscle tissue is composed of multinuclear muscle fibers, in which there are no separate cells.
  • nucleus - They are pushed to the membrane of the muscle fiber.

Smooth muscle

  • spindle-like muscle cell - Actin and myosin, the proteins responsible for the contractions of the muscle are unorganized within the cells, therefore the muscle is unstriated.
  • nucleus - Their shape is elongated, they are located in the center of the cell.
  • Eberth's lines - Cardiac muscle cells form fibers. The lines between the cells are called Eberth´s lines.
  • nucleus - They are located in the center of the cells.
  • branching muscle fiber - The elongated, branching muscle cells form fibers. Actin and myosin, the proteins responsible for the contractions of the muscle are organized within the cells, therefore the muscle is striated.
  • multinuclear fiber - Striated muscle tissue is composed of multinuclear muscle fibers, in which there are no separate cells.
  • nucleus - They are pushed to the membrane of the muscle fiber.

Cardiac muscle

  • spindle-like muscle cell - Actin and myosin, the proteins responsible for the contractions of the muscle are unorganized within the cells, therefore the muscle is unstriated.
  • nucleus - Their shape is elongated, they are located in the center of the cell.
  • Eberth's lines - Cardiac muscle cells form fibers. The lines between the cells are called Eberth´s lines.
  • nucleus - They are located in the center of the cells.
  • branching muscle fiber - The elongated, branching muscle cells form fibers. Actin and myosin, the proteins responsible for the contractions of the muscle are organized within the cells, therefore the muscle is striated.
  • multinuclear fiber - Striated muscle tissue is composed of multinuclear muscle fibers, in which there are no separate cells.
  • nucleus - They are pushed to the membrane of the muscle fiber.

Skeletal muscle

  • spindle-like muscle cell - Actin and myosin, the proteins responsible for the contractions of the muscle are unorganized within the cells, therefore the muscle is unstriated.
  • nucleus - Their shape is elongated, they are located in the center of the cell.
  • Eberth's lines - Cardiac muscle cells form fibers. The lines between the cells are called Eberth´s lines.
  • nucleus - They are located in the center of the cells.
  • branching muscle fiber - The elongated, branching muscle cells form fibers. Actin and myosin, the proteins responsible for the contractions of the muscle are organized within the cells, therefore the muscle is striated.
  • multinuclear fiber - Striated muscle tissue is composed of multinuclear muscle fibers, in which there are no separate cells.
  • nucleus - They are pushed to the membrane of the muscle fiber.

Animation

  • spindle-like muscle cell - Actin and myosin, the proteins responsible for the contractions of the muscle are unorganized within the cells, therefore the muscle is unstriated.
  • nucleus - Their shape is elongated, they are located in the center of the cell.
  • Eberth's lines - Cardiac muscle cells form fibers. The lines between the cells are called Eberth´s lines.
  • nucleus - They are located in the center of the cells.
  • branching muscle fiber - The elongated, branching muscle cells form fibers. Actin and myosin, the proteins responsible for the contractions of the muscle are organized within the cells, therefore the muscle is striated.
  • multinuclear fiber - Striated muscle tissue is composed of multinuclear muscle fibers, in which there are no separate cells.
  • nucleus - They are pushed to the membrane of the muscle fiber.

Narration

A common property of muscle tissue is the ability to contract due to muscle proteins. The three types of muscle tissue in the human body are the smooth, the skeletal, and the cardiac muscle tissue. Smooth muscles are found in our internal organs, skeletal muscle tissue makes up our skeletal muscles, and cardiac muscle tissue is only found in the heart.

Smooth muscle tissue is resistant to fatigue but is relatively weak. Its cells are elongated and spindle-like. This tissue type is found in our internal organs. It is responsible for the peristaltic movement of the gastrointestinal tract, the contractions of the uterus during childbirth, the secretion of glands, and the regulation of blood pressure through the contraction and dilation of blood vessels. Smooth muscle tissue cannot be controlled voluntarily.

Cardiac muscle tissue is composed of branched cells that form long, striated fibers. The microscopic lines between cells are called Eberth's lines. Cardiac muscle is only found in the heart; it is very strong and highly resistant to fatigue. The average resting heart rate is about 72 beats per minute, which means our heart beats more than 100 thousand times a day and over 2 billion times in a 70-year lifetime.

Skeletal muscle tissue is composed of multinuclear muscle fibers, in which cells are not separate. The nuclei are pushed against the membrane of the muscle fiber. The fibers do not branch. They have a characteristic striated pattern, which is caused by the regular arrangement of muscle proteins. This tissue type makes up our skeletal muscles.
Skeletal muscles are connected to the bones through the tendons, they form the active part of the musculoskeletal system. Skeletal muscle is strong, but less resistant to fatigue, so it needs time to recover after intensive work. It is controlled voluntarily.

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