Further, absorption can be done by active transport or passive transport. Assimilation. The absorbed simple molecules are now in the blood stream, and they are distributed to all the cells in the body. Assimilation is converting these molecules and integrating them with the living tissues.
With proper timing of the contrast-agent bolus, a thrombus in a large vessel is seen as a soft-tissue filling defect in rare cases. Small-bowel obstruction can cause vessel obstruction and lead to ischemia, which often is apparent as dilated loops on CT scans.
If you look at a female cat's genital area, the space just under her tail, it will look like an upside down exclamation point (!) with the long slit of the vaginal area below the anus. Male Cats - Colon. The male cat has a narrower space between the anus and the penis, with the testicles in the middle.