Unlike other tissue, skeletal muscle cells contain myofibrils – these are shaped like long cylinders and extend along the full length of the muscle fibre/cell. Each myofibril consists of two types of protein filaments called thick filaments and thin filaments.

Tissues are classified into four basic types: epithelium, connective tissue (includes cartilage, bone and blood), muscle, and nervous tissue.

2023年3月4日 · Quick summary of skeletal muscle under a microscope: these are long, parallel, cylindrical muscle fibers without branching. Numerous flat peripheral nuclei and unique cross-striation are found in the skeletal muscle microscope slide.

Skeletal muscle tissue is arranged in bundles surrounded by connective tissue. Under the light microscope, muscle cells appear striated with many nuclei squeezed along the membranes.

Virtual microscope slides of muscle tissue - skeletal muscle, cardiac muscle (including Purkinje fibers), and smooth muscle.

Identify each type of muscle tissue in microscope preparations and identify the microanatomy of the skeletal muscle fibers. Muscle tissue is composed of cells that have the ability to shorten/contract in order to produce movement. The muscle cells, also called muscle fibers are long and slender.

2023年4月16日 · A smooth muscle looks like an elongated spindle-shaped or fusiform cell under a light microscope. Each cell of the smooth muscle fibers contains a single elongated center nucleus. The diameter of the smooth muscle cells ranges from 5 to 20 micrometers.

Muscle tissues differ in structure. Skeletal muscle fibres are packed into regular parallel bundles. Smooth muscle has bundles of thin and thick filaments. Cardiac muscle bundles are branched but connected.

Contrast the structure and function of skeletal, smooth, and cardiac muscle tissue. Identify morphological differences in smooth muscle across tissues. Identify the functional components of a neuromuscular junction. Identify some key pathological examples relevant to muscle histology. Muscles are multicellular contractile units.

Contraction of skeletal muscles is under voluntarily control. The top and middle images show skeletal muscle tissue in longitudinal section. Skeletal muscle cells (also known as skeletal muscle fibers) are cylindrical, multinucleate and very long. The images show only part of length of these skeletal muscle cells.