Sarcolemma - Wikipedia
The sarcolemma (sarco (from sarx) from Greek; flesh, and lemma from Greek; sheath), also called the myolemma, is the cell membrane surrounding a skeletal muscle fibre or a cardiomyocyte. [1] [2] It consists of a lipid bilayer and a thin outer coat of polysaccharide material that contacts the basement membrane.
Sarcolemma - Definition and Function - Biology Dictionary
2017年4月28日 · The sarcolemma is a specialized cell membrane which surrounds striated muscle fiber cells. Sometimes called the myolemma, the sarcolemma is similar to a typical plasma membrane but has specialized functions for the muscle cell.
Sarcolemma - Definition and Examples - Biology Online
2022年6月16日 · Sarcolemma Definition. What is the sarcolemma? It is the thin, transparent, extensible plasma membrane of the muscle cell. It consists of a cell membrane (plasma membrane) and an outer coat made up of a thin layer of polysaccharide (glycocalyx) material with numerous thin collagen fibrils.
Skeletal muscle tissue: Histology - Kenhub
2023年11月4日 · The cytoplasm of a muscle cells is referred to as sarcoplasm. The plasma membrane is called the sarcolemma and the endoplasmic reticulum is called the sarcoplasmic reticulum. A muscle fiber may also be referred to as a myofiber. Individually, skeletal muscles cells are referred to as muscle fibers.
10.2 Skeletal Muscle – Anatomy & Physiology - Open Educational …
The membrane of the cell is the sarcolemma; the cytoplasm of the cell is the sarcoplasm. The sarcoplasmic reticulum (SR) is a form of endoplasmic reticulum. Muscle fibers are composed of myofibrils which are composed of sarcomeres linked in series.
Sarcolemma | Complete Anatomy - Elsevier
The sarcolemma is the fine, delicate, extensible membrane surrounding each muscle fiber. It is composed of a cell, or plasma, membrane which presents an extracellular matrix of collagen fibrils and polysaccharides that make contact with the basal lamina.
38.19: Muscle Contraction and Locomotion - Biology LibreTexts
2023年10月31日 · Excitation–contraction coupling is the physiological process of converting an electrical stimulus to a mechanical response. It is the link (transduction) between the action potential generated in the sarcolemma and the start of a muscle contraction.
Sarcoplasm: Structure and function - Kenhub
2024年4月1日 · The term sarcoplasm refers to the cytoplasm of a muscle cell and is where metabolic processes of the cell take place. It is surrounded by a plasma membrane called the sarcolemma, which regulates the movement of various materials into or out of the muscle cell.
Ultrastructure of Muscle - Skeletal - TeachMeAnatomy
2024年9月5日 · A muscle cell is very specialised for its purpose. A single cell forms one muscle fibre, and its cell surface membrane is known as the sarcolemma. T tubules are unique to muscle cells. These are invaginations of the sarcolemma that conduct charge when the cell is …
10.2 Skeletal Muscle - Anatomy and Physiology 2e - OpenStax
The plasma membrane of muscle fibers is called the sarcolemma, the cytoplasm is referred to as sarcoplasm, and the specialized smooth endoplasmic reticulum, which stores, releases, and retrieves calcium ions (Ca ++) is called the sarcoplasmic reticulum (SR) (Figure 10.4).
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