The objects and purposes of the hospital service districts and the governing bodies created pursuant to the provisions of this Chapter shall be:
(1) To own and operate hospitals for the care of persons suffering from illnesses or disabilities which require that patients receive hospital care.
(2) To administer other activities related to rendering care to the sick and injured or in the promotion of health which may be justified by the facilities, personnel, funds and other requirements available.
(3) To promote and conduct scientific research and training related to the care of the sick and injured insofar as such research and training can be conducted in connection with the hospital.
(4) To participate so far as circumstances may warrant in any activity designed and conducted to promote the general health of the community.
(5) To cooperate with other public and private institutions and agencies engaged in providing hospital and other health services to residents of the district.