杜克大学, 人体生理学5.4Cardiac Muscle Structure,E-C-Coupling and Force Generation心肌结构、E-C耦合和力产生, 视频播放量 1、弹幕量 0、点赞数 1、投硬币枚数 0、收藏人数 0、转发人数 0, 视频作者 HH-us, 作者简介 ,相关视频:【李林生物网课】冒死上传3次(已离职
A cardiac muscle fiber has been cut at the level of the Z-line to show the intracellular extension of a T-tubule, which runs through the quadratic pattern of the Z-line. The T-tubule has a glycosaminoglycan-containing lining, which can be regarded as a continuation of the basal lamina (...
Structure of Cardiac and Smooth Muscle Although it is striated, cardiac muscle differs from skeletal muscle in that it is highly branched with cells connected by overlapping projections of the sarcolemma called intercalated discs. These discs contain desmosomes and gap junctions. In addition, cardiac ...
2. Structure of Cardiac Muscles: - The cells of cardiac muscles are cylindrical in shape and are branched. This branching allows for interconnectedness between cells, facilitating coordinated contractions. 3. Striations in Cardiac Muscles: - Cardiac muscle cells are striated, meaning they have alternat...
cells that stimulate the other cardiac muscle cells. The pacemaker cells normally receive inputs from the nervous system to increase or decrease the heart rate depending on the body's needs. However, in the absence of nervous system stimulation, the pacemaker cells can produce a regular heart ...
Structure of The Heart心脏结构 Cardiac muscle is a unique muscle tissue found only in the heart. Unlike most forms of muscle, which are stimulated to contract by nerves or hormones, certain cardiac muscle cells can contract spontaneously. Without a constant supply of oxygen, cardiac muscle will ...
Objective:To investigate the effect of aerobic exercise on expression of BNP mRNA in the cardiac muscle of SHR. Method: The grouping and processions were a... C Ren,W Li,J Zhang - 《Chinese Journal of Rehabilitation Medicine》 被引量: 3发表: 2007年 Oral Abstract session * New insights ...
Smooth endoplasmic reticulum Similar structurally to the rough ER and consists of short anastomosing tubules, but not associated with ribosomes. Function in lipid metabolism, segregates Ca2+ ions in 17、skeletal and cardiac muscle. And involved in detoxification. Golgi Apparatus Proteins and other ...
Intracellular acidosis lowers the Ca²⁺ sensitivity of cardiac muscle, which results in decreased force generation, decreased cardiac output, and, eventually, heart failure. The A162H mutant of cardiac troponin I in the thin filament turns the heart acidosis-resistant. Physiological and structural...
The following chapters explore the capacitative, resistive, and syncytial properties of heart muscle; contractile structures in some Protozoa such as ciliates and gregarines; the microanatomy of smooth muscle, cardiac muscle, and voluntary, somatic, or skeletal muscle; postmortem changes in the ...