1. 3.7 – Organ Transplantation
Transplantation involves the transfer of living tissues or organs from one person to another.
Organs that can be successfully transplanted are: the heart, liver, lung, pancreas and intestines.
Tissues that can be transplanted are: the cornea, skin, bone, bone marrow, tendons, and blood vessels. (See Figure 1, pg 96)

2. Donated tissues and organs can come from living or deceased donors
Donated tissues and organs can come from living or deceased donors. Transplants from deceased donors are much more common than from living donors.
Rejection is the biggest risk for transplant patients. The recipient’s immune system may recognize the new organ as foreign material and try to destroy it.
Time spent on a waiting list is a second risk factor.
Xenotransplantation is the transfer of living tissues or organs from one species to another, usually from other animals to humans.

3. 3.11 – Interactions of Systems
Organ systems work together to accomplish specific functions.
All organ systems in the body interact with at least one other organ system.
See Figure 1, pg 108

4. Other Interactions Between Systems
Animals have different ways of meeting their needs so organ systems vary greatly. Not all animals have all organ systems.
In complex animals, the circulatory system connects all other systems in the body.