translate English to French: (iii) All these gradients were present in the mucosa, but their slopes were higher than those in the whole gut wall; the R2 for the mucosal ART, CAP, and the SH flow was 60.5, 52.7, and 21.6%, respectively, (iv) The ART, CAP, or the SH flow of the submucosa and the muscularis showed no such decreasing gradient.
(iv) Le débit ART, CAP ou SH de la sous-muqueuse et de la musculeuse ne montra pas une telle diminution de gradient. Ainsi, le gradient du débit sanguin de la paroi intestinale semble être un reflet d'un gradient plus important de débit ART et CAP de la muqueuse.