Question

Мышечная ткань значение​

Answer 1

Ответ:

ткани, различные по строению и происхождению, но сходные по способности к выраженным сокращениям.Состоят из вытянутых клеток, которые принимают раздражение от нервной системы и отвечают на него сокращением.Состоят из вытянутых клеток, которые принимают раздражение от нервной системы и отвечают на него сокращением. Они обеспечивают перемещения в пространстве организма в целом, его движение органов внутри организма (сердце, язык, кишечник и др.) и состоят из мышечных волокон. Свойством изменения формы обладают клетки многих тканей, но в мышечных тканях эта способность является главной функцией.

Объяснение:

Answer 2

The Importance of Muscle Tissue

Muscle tissue plays a crucial role in the human body, enabling movement, maintaining posture, and supporting various bodily functions. It is responsible for generating force and producing movement through the contraction and relaxation of muscle fibers. There are three main types of muscle tissue: skeletal muscle, smooth muscle, and cardiac muscle.

Skeletal Muscle: Skeletal muscle is attached to bones and is responsible for voluntary movements. It allows us to walk, run, lift objects, and perform various physical activities. Skeletal muscle is striated, meaning it has a striped appearance under a microscope. It is composed of long, cylindrical muscle fibers that are bundled together and surrounded by connective tissue.

Smooth Muscle: Smooth muscle is found in the walls of organs, blood vessels, and other structures within the body. Unlike skeletal muscle, smooth muscle is not under voluntary control. It is responsible for involuntary movements, such as the contraction of the digestive tract, blood vessel constriction, and dilation of the pupils. Smooth muscle appears smooth under a microscope due to the absence of striations.

Cardiac Muscle: Cardiac muscle is found exclusively in the heart. It is responsible for the rhythmic contractions that pump blood throughout the body. Cardiac muscle is striated like skeletal muscle but has unique properties that allow it to contract continuously without fatigue.

Muscle tissue is composed of specialized cells called muscle fibers. These fibers contain proteins called actin and myosin, which interact to generate force during muscle contraction. The strength and efficiency of muscle contractions can be influenced by factors such as exercise, nutrition, and overall health.