A surgical staple cartridge configured and adapted to be removably received within a surgical stapler, the staple cartridge comprising: a working surface (118, 120); one or more laterally spaced apart rows of staple slots formed in the working surface; a plurality of surgical staples ("S") disposed, one each, within the staple slots for mechanically securing adjacent layers of body tissue to one another; and a tissue property enhancing system for enhancing one or more properties of body tissue to be repaired or joined by the surgical stapler, the tissue property enhancing system being configured and adapted to non-mechanically enhance the repaired or joined body tissue, the tissue property enhancing system including: a wound closure material dispensing system for dispensing an amount of surgically biocompatible wound closure material ("A") to a target staple site during at least one of prior to, after and concomitant with a firing of the surgical stapler to expel a plurality of staples loaded in the staple cartridge, the tissue property enhancing system comprising at least one reservoir disposed in the staple cartridge for containing the biocompatible wound closure material therein; a plurality of ducts formed in the staple cartridge, wherein the plurality of ducts extend from the at least one adhesive reservoir to the upper surface of the staple cartridge; and a plurality of deployable needles each having a tip, the needles being adapted and disposed in the cartridge and ducts such that their tips can be extended out of the working surface of the staple cartridge and penetrate at least a layer of the adjacent layers of body tissue and to allow the biocompatible wound closure material to be delivered along the exterior of the needles and to penetrate one or more layers of the body tissue. a working surface (118, 120); one or more laterally spaced apart rows of staple slots formed in the working surface; a plurality of surgical staples ("S") disposed, one each, within the staple slots for mechanically securing adjacent layers of body tissue to one another; and a tissue property enhancing system for enhancing one or more properties of body tissue to be repaired or joined by the surgical stapler, the tissue property enhancing system being configured and adapted to non-mechanically enhance the repaired or joined body tissue, the tissue property enhancing system including: a wound closure material dispensing system for dispensing an amount of surgically biocompatible wound closure material ("A") to a target staple site during at least one of prior to, after and concomitant with a firing of the surgical stapler to expel a plurality of staples loaded in the staple cartridge, the tissue property enhancing system comprising at least one reservoir disposed in the staple cartridge for containing the biocompatible wound closure material therein; a plurality of ducts formed in the staple cartridge, wherein the plurality of ducts extend from the at least one adhesive reservoir to the upper surface of the staple cartridge; and a plurality of deployable needles each having a tip, the needles being adapted and disposed in the cartridge and ducts such that their tips can be extended out of the working surface of the staple cartridge and penetrate at least a layer of the adjacent layers of body tissue and to allow the biocompatible wound closure material to be delivered along the exterior of the needles and to penetrate one or more layers of the body tissue. a wound closure material dispensing system for dispensing an amount of surgically biocompatible wound closure material ("A") to a target staple site during at least one of prior to, after and concomitant with a firing of the surgical stapler to expel a plurality of staples loaded in the staple cartridge, the tissue property enhancing system comprising at least one reservoir disposed in the staple cartridge for containing the biocompatible wound closure material therein; a plurality of ducts formed in the staple cartridge, wherein the plurality of ducts extend from the at least one adhesive reservoir to the upper surface of the staple cartridge; and a plurality of deployable needles each having a tip, the needles being adapted and disposed in the cartridge and ducts such that their tips can be extended out of the working surface of the staple cartridge and penetrate at least a layer of the adjacent layers of body tissue and to allow the biocompatible wound closure material to be delivered along the exterior of the needles and to penetrate one or more layers of the body tissue.