hearts from vagotomized cats contained less ach than controls in the right ventricle ( -31 % ) , right atrium ( -54 % ) , sa node ( -42 % ) , and papillary muscle ( -53 % ) , but no decreases were found in the left ventricle , left atrium , or interventricular septum .
C0018787
hearts
C0225870
interventricular septum