Symptoms and signs of pneumonia may be mild or severe and depend upon someone's overall state of health as well as the type of organism causing the pneumonia. Severe symptoms include. 1  cough, 2  chest pain when breathing or coughing, 3  labored breathing or shortness of breath, 4  coughing up phlegm, 5  fever, 6  chills.
The striations that are evident in skeletal muscle are due to the areas between the sacromeres that is referred to as the Z-lines.keletal Muscle (as well as Cardiac Muscle) have striations do to their sarcomere's anatomy. The sarcomere is the functional unit of the muscle and appears striated because th â¦ e different thick and thin filaments present.
It is one of three major muscle types, the others being cardiac muscle and smooth muscle. Most skeletal muscles are attached to bones by bundles of collagen fibers known as tendons. Skeletal muscle is made up of individual muscle cells or myocytes, known as muscle fibers.They are formed from the fusion of developmental myoblasts (a type of embryonic progenitor cell that gives rise to a muscle cell) in a process known as myogenesis. Muscle fibres are cylindrical, and multinucleated.Muscle fibers are in turn composed of myofibrils. The myofibrils are composed of actin and myosin filaments, repeated in units called sarcomeres, the basic functional units of the muscle fiber.t is one of three major muscle types, the others being cardiac muscle and smooth muscle. Most skeletal muscles are attached to bones by bundles of collagen fibers known as tendons. Skeletal muscle is made up of individual muscle cells or myocytes, known as muscle fibers.