The interventricular septum contains which of the following structures?
anterior papillary muscle
- The interventricular septum is composed of membranous and muscular parts.
- The conus arteriosus leads into the pulmonary trunk.
- A thick muscular ridge, the supraventricular crest, separates the ridged muscular wall of the inflow part of the right ventricle from the smooth wall of the conus arteriosus or outflow part.