(a) All securities of the corporation shall be signed by the chairman of its board of directors and attested by its secretary, and the seal of the corporation shall be affixed thereto. Any interest coupons applicable to the securities of the corporation shall be signed by the chairman of the board of directors, but a facsimile of such chairman's signature may be impressed on any such interest coupon in lieu of his manually signing the same. Any securities of the corporation may be executed and delivered by it at any time and from time to time, shall be in such form and denomination and of such tenor and maturities, shall contain such provisions not inconsistent with this section and shall bear such rate or rates of interest payable and evidenced in such manner as may be provided by resolution of the board of directors.

(b) Any borrowing may be effected by sale of such securities at either public or private sale in such manner and at such price or prices and at such time or times as may be determined by the board of directors to be most advantageous. Any securities issued by such corporation may thereafter at any time, whether before, at or after the maturity thereof, and, from time to time, be refunded by the issuance by sale or exchange of refunding securities. The corporation may pay all expenses, premiums and commissions which its board of directors may deem necessary and advantageous in connection with any financing done by it. Securities issued by the corporation shall not be general obligations of the corporation, but shall be payable solely from the sources specified in the proceedings wherein the securities are authorized to be issued.

(c) As security for the payment of the principal of, and interest on, any securities issued by it, the corporation may mortgage, pledge or otherwise convey its property and its revenues from any source, including, but without limitation:

(1) Taxes which may be levied for the benefit of the corporation or the proceeds of which may have been appropriated to the corporation by the State Legislature or by the county commission of a county or a municipality and

(2) Revenues from the operation of any hospital owned or operated by it.

(d) Any mortgage, deed of trust or pledge made by the corporation may contain such agreements as the board of directors may deem advisable respecting the operation and maintenance of the property and the use of the revenues subject to such mortgage, deed of trust or pledge and respecting the rights or duties of the parties to such instrument or the parties for the benefit of whom such instrument is made; provided, that no such mortgage or deed of trust shall be subject to foreclosure.

(e) All debts created and securities issued by the corporation shall be solely and exclusively an obligation of the corporation and shall not create an obligation or debt of the State of Alabama or of any county or municipality. The faith and credit of the State of Alabama, or of any county or municipality therein, shall never be pledged for the payment of any debt incurred or securities issued by the corporation. All bonds and notes issued by the corporation shall be construed to be negotiable instruments although payable solely from a specified source. All securities issued by the corporation, the income therefrom, and all mortgages and other instruments executed as security therefor shall be exempt from all taxation in the State of Alabama.