In vertebrates, skeletal muscle contractions are neurogenic as they require synaptic input from motor neurons to produce muscle contractions. A single motor neuron is able to innervate multiple muscle fibers, thereby causing the fibers to contract at the same time.
periostitis. n. 1. (Anatomy) inflammation of the periosteum.
Peritonitis pertains to the inflammation of the peritoneum. Peritoneum is the smooth serous membrane that lines the cavity of the abdomen and covers most of the abdominal organs. Peritonitis is marked by exudation in the peritoneum of serum, fibrin, cells, and pus.