Ad
related to: heart muscle diagram labeled sarcomere printable
Search results
Results From The WOW.Com Content Network
Cardiac muscle Cardiac sarcomere structure . Cardiac muscle tissue or myocardium forms the bulk of the heart. The heart wall is a three-layered structure with a thick layer of myocardium sandwiched between the inner endocardium and the outer epicardium (also known as the visceral pericardium).
Intercalated discs or lines of Eberth are microscopic identifying features of cardiac muscle. Cardiac muscle consists of individual heart muscle cells (cardiomyocytes) connected by intercalated discs to work as a single functional syncytium. By contrast, skeletal muscle consists of multinucleated muscle
Muscle Anatomy Within the sarcolemma of the myocyte, there are specific invaginations referred to as transverse- tubules . These structures attached to the sarcomere z-lines help to promote interaction between the extracellular space and the interior of the cell. [ 1 ]
[3] (a) electron micrograph of mouse heart muscle sarcomere. (b) diagram of sarcomere layout from (a). Myosin thick filaments are blue, thin actin filaments are orange, Z-discs are black, and the M-band is grey/white. (c) schematic of M-band composition of M-lines. (d) M-band hexagonal lattice based on electron microscopy sections.
Printable version; In other projects ... Heart diagram with labels in English. Blue components indicate de-oxygenated blood pathways and red components indicate ...
Three distinct types of muscle (L to R): Smooth (non-striated) muscle in internal organs, cardiac or heart muscle, and skeletal muscle. There are three distinct types of muscle: skeletal muscle, cardiac or heart muscle, and smooth (non-striated) muscle. Muscles provide strength, balance, posture, movement, and heat for the body to keep warm. [3]
A sarcomere (Greek σάρξ sarx "flesh", μέρος meros "part") is the smallest functional unit of striated muscle tissue. [1] It is the repeating unit between two Z-lines. Skeletal muscles are composed of tubular muscle cells (called muscle fibers or myofibers) which are formed during embryonic myogenesis .
Sarcomere length can be approximated by the volume of the ventricle because each shape has a conserved surface-area-to-volume ratio. This is useful clinically because measuring the sarcomere length is destructive to heart tissue. It requires cutting out a piece of cardiac muscle to look at the sarcomeres under a microscope.