External intercostals. Internal intercostals. External abdominal oblique. Internal abdominal oblique Transversus abdominis Rectus abdominis. Diaphragm. Internal intercostals. External abdominal oblique. Internal abdominal oblique Transversus abdominis Rectus abdominis. â  Figure 16.14 The muscles involved in breathing. The principal muscles of inspiration are shown on the left, and those of expiration are shown on the right.
Definition: An Arrhenius base is a substance that when added to water increases the number of OH-ions in the water.Arrhenius bases follow the reaction:efinition: An Arrhenius base is a substance that when added to water increases the number of OH-ions in the water.
Early years [edit]. Arrhenius was born on February 19, 1859, at Vik (also spelled Wik or Wijk), near Uppsala, Sweden, the son of Svante Gustav and Carolina Thunberg Arrhenius.oday, Arrhenius is best known for his study published in 1896, on the greenhouse effect.