Any county and any one or more municipalities located, in whole or in part, in such county are hereby together empowered and authorized to cause to be organized and incorporated one or more public corporations for hospital purposes with all the power and authority provided in Section 22-21-179. Such power and authority shall be exercised by the governing body of the county and by the governing body or bodies of the municipality or municipalities proposing to exercise such power and authority. The determination of such governing body to exercise the power and authority granted in this section shall be evidenced by a resolution which:
Whenever the governing bodies of the county and of the municipality or municipalities which are to be members of such public corporation shall have adopted such resolutions, the chief executive officer of each of them shall sign the certificate of incorporation and cause the same to be filed as provided in Section 22-21-173.
Ala. Code § 22-21-172 (1975)