Kinoplasma [Stor.; Kino- + (Cyto)Plasma; Syn. Contractile Plasm]

Kinoplasm is the liquid part of the myocyte cytoplasm surrounding the myofibrils.

This intracellular component is responsible for the contraction of muscle cells. Kinoplasm contains various organelles, enzymes and ions necessary to ensure muscle contraction.

During muscle contraction, myofibrils interact with components of cinema plasma. Calcium ions released into the cinemaplasm initiate the interaction of actin and myosin, the myofibril proteins responsible directly for contraction.

Thus, kinoplasma performs an important regulatory and support function, allowing myofibrils to effectively contract and relax. Changes in the composition and properties of cinema plasma can lead to disruptions in the functioning of muscle cells.

Kinoplasma: Study of the liquid part of the myocyte cytoplasm

Introduction:
Cytoplasm is the main structure of the cell, ensuring its vital activity and functioning. It consists of various components, each of which performs specific tasks. One such component is kinoplasma, the liquid part of the myocyte cytoplasm that surrounds the myofibrils. In this article we will look at the main characteristics and functions of cinema plasma, as well as its importance for the functioning of myocytes.

Definition and Origin:
The term "kinoplasma" is derived from the words "kino-" (from the Greek "kinēsis", meaning movement) and "(cyto)plasma" (the main constituent of the cell). Kinoplasma is a liquid medium located between myofibrils inside a myocyte - a cell specialized for contraction and movement of muscles.

Structure and composition:
Kinoplasma consists of water, organic and inorganic molecules dissolved in it, as well as various structural elements necessary to maintain the normal functioning of the myocyte. Important components of kinoplasma are ions, proteins, energy molecules (for example, ATP) and other substances necessary for conducting biochemical reactions and maintaining balance in the cell.

Functions:
Kinoplasma performs several key functions that are necessary for normal muscle contraction and movement of the body:

1. Maintaining homeostasis: Kinoplasma plays an important role in maintaining the internal environment of the myocyte. It contains ions that are involved in regulating the concentration of ions in and around the cell. This is important for maintaining optimal performance and electrical excitability of myofibrils.

2. Transport of substances: Kinoplasma serves as a medium for the movement of various molecules and ions within the myocyte. It ensures the delivery of oxygen, nutrients and other important molecules to the myofibrils, where they are needed for energy processes and muscle contraction.

3. Regulates Muscle Contraction: Kinoplasma contains calcium, a key ion involved in the regulation of muscle contraction. During neuromuscular stimulation, cinema plasma plays the role of an ionic reservoir that releases calcium, which activates the mechanisms of muscle contraction.

4. Removal of Metabolic Waste: Kinoplasma is also involved in the process of removing metabolic waste generated by energetic reactions within the myocyte. It serves as a medium for the diffusion and transport of these wastes to places of their further processing and removal from the cell.

Conclusion:
Kinoplasm is an important component of the myocyte cytoplasm, playing a key role in muscle function and contraction. Its structure and composition ensure the normal functioning of the cell and the maintenance of homeostasis. Kinoplasma is also involved in the transport of substances, the regulation of muscle contraction and the removal of metabolic waste. A deeper understanding of kinoplasma and its functions could lead to the development of new treatments for muscle diseases and improved physical performance.

Links:

1. Alberts B, Johnson A, Lewis J, et al. Molecular Biology of the Cell. 4th edition. New York: Garland Science; 2002. Section 13.2, The Cytosol and Its Organelles. Available from: https://www.ncbi.nlm.nih.gov/books/NBK26882/ ↗
2. McArdle WD, Katch FI, Katch VL. Essentials of Exercise Physiology. 4th edition. Philadelphia: Lippincott Williams & Wilkins; 2010. Chapter 2, The Bioenergetics of Exercise and Training.