What's the difference between passible and patible?

Passible

Definition:

(a.) Susceptible of feeling or suffering, or of impressions from external agents.

Example Sentences:

(1) The degree of the filling up and the dilation of the gall bladder, its functional state as well as the passibility of d. cysticus are evaluated by ultrasound examination and computer determination of the surface and dimensions of the gall bladder.
(2) Gemeprost treatment increased free passibility (the size of the largest dilator which could be passed without encountering resistance) (P < 0.01), reduced the forces required to dilate the cervix (P < 0.01) reduced blood loss (P < 0.05), reduced the collagen concentration (P < 0.01) and was associated with a modest neutrophil influx (P < 0.02) as compared to placebo.
(3) Such finding is assessed, and the possibility that the diarrhea frequently found in animals infested by such parasites may be caused by the action of their own prostaglandins on the intestinal smooth musculature of the animals, as well as the passibility that the agents inhibitory of the prostaglandin synthesis may be used in the treatment of such parasitosis are expressed.
(4) The test allows the assessment of the functional state of the gall bladder, the passibility of d. cysticus, the degree and mechanism of the filling up of the gall bladder and the bile ducts with bile.