(800)222-2114. Claims: (877)224-5677. American Commerce Insurance Company is part of the MAPFRE Insurance group. They originated in Massachusetts as The Commerce Group, Inc. (CGI), founded in the town of Webster, Massachusetts in 1972. They are the largest private passenger automobile insurer, homeownersâ insurer and commercial automobile insurer in Massachusetts.
FREE subscriptions for doctors and students... You have 3 open access pages. The oblique fissures divide the lung on both sides into upper and lower lobes. The upper lobe on the right is further subdivided by the horizontal fissure into definitive upper lobe - above the fissure - and middle lobe - below the fissure. The fissures extend from the surface of the lung to its hilum. Along this route, visceral pleura apposes visceral pleura.
The internal abdominal oblique muscle is an opposing force to the diaphragm, reducing upper chest cavity volume during exhalation. As the diaphragm contracts, the chest cavity is pulled down to increase lung size.nternal abdominal oblique muscles are called âsame side rotators.â The right internal oblique works with the left external oblique, and vice versa, when flexing and rotating the torso.