1 Heat intolerance and Hyperthyroidism and Digestive symptoms (4 causes). 2  Heat intolerance and Hyperthyroidism and Endocrine symptoms (4 causes). 3  Heat intolerance and Hyperthyroidism and Lower abdominal symptoms (4 causes). 4  Heat intolerance and Hyperthyroidism and Nerve symptoms (4 causes). Heat intolerance and Hyperthyroidism and Sensory symptoms (4 causes). 2  Heat intolerance and Hyperthyroidism and Skin symptoms (4 causes). 3  Heat intolerance and Hyperthyroidism and Temperature sensitivity (4 causes). 4  Heat intolerance and Hyperthyroidism and MORE SYMPTOMS.
The cytoskeleton is made up of three kinds of protein filaments: Actin filaments (also called microfilaments); Intermediate filaments and; Microtubules.
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.The sarcomere is responsible for the striated appearance of skeletal muscle, and forms the basic machinery necessary for muscle contraction.uscle 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.