Typically, the infundibulum refers to the corresponding internal structure, whereas the conus arteriosus refers to the external structure. Defects in infundibulum development can result in a heart condition known as tetralogy of Fallot.
Usually, the infundibulum refers to the internal part, while the conus arteriosus denotes the external structure. Issues with infundibulum development frequently lead to a heart disorder known as tetralogy of Fallot.