Sarcoplasmic Reticulum In Muscle Physiology

This book explores the role of the sarcoplasmic reticulum in muscle physiology, serving as a valuable reference for students and practitioners of myology and related fields.

Format: Hardback
Length: 184 pages
Publication date: 30 December 2021
Publisher: Taylor & Francis Ltd

First published in 1986, this comprehensive book delves into the intricate role of the sarcoplasmic reticulum in the cellular physiology of muscle structures. Extensively researched and meticulously compiled, it is adorned with an abundance of notes, diagrams, and comprehensive references, making it an invaluable resource for students of myology and other practitioners in their respective fields.

The sarcoplasmic reticulum (SR) is a crucial component of muscle cells, responsible for numerous essential functions. It plays a pivotal role in muscle contraction by facilitating the storage and release of calcium ions, which are necessary for muscle activation. The SR also contributes to muscle relaxation by regulating the reuptake of calcium ions back into the cell.

In addition to its role in muscle contraction and relaxation, the SR is involved in other cellular processes such as metabolism, signaling, and protein synthesis. It acts as a storage compartment for calcium ions, which can be released in response to various stimuli, such as nerve impulses or hormonal signals. The SR also plays a role in signaling pathways, as it can interact with other cellular components to regulate gene expression and cellular function.

The structure of the SR is complex, consisting of a network of interconnected tubules and membranes. The SR is divided into two main regions: the transverse tubules (T-tubules) and the longitudinal tubules (L-tubules). The T-tubules are shorter and wider, while the L-tubules are longer and thinner. The space between the T-tubules and L-tubules is called the sarcoplasmic cleft.

The SR is also involved in the regulation of muscle contraction and relaxation. During muscle contraction, the SR releases calcium ions from its storage compartments, which triggers the activation of muscle fibers. This activation leads to the contraction of the muscle, which is essential for movement.

On the other hand, during muscle relaxation, the SR reabsorbs calcium ions from the sarcoplasmic cleft, which leads to the relaxation of the muscle. This relaxation is necessary for rest and recovery, as it allows the muscle to replenish its energy stores and prepare for future contractions.

The SR is also important for the regulation of muscle metabolism. It plays a role in the transport of nutrients and waste products within the muscle cell, and it can also regulate the production of ATP, the energy currency of the cell.

In summary, the sarcoplasmic reticulum is a vital component of muscle cells, playing a crucial role in muscle contraction, relaxation, metabolism, signaling, and protein synthesis. Its complex structure and function make it an important area of research in myology and other fields related to muscle physiology.

Dimension: 254 x 178 (mm)
ISBN-13: 9780367259556