COPPER AND CALCIUM
- COPPER: ABSORBED IN THE JEJUNUM. ABOUT 50% OF THE INGESTED LOAD ABSORBED. SOME COPPER IS SECRETED IN THE BILE IN A BOUND FORM AND THIS IS LOST IN THE FECES. FAILURE OF THIS SECRETION MECHANISM RESULTS IN ACCUMULATION IN CERTAIN TISSUES.
- CALCIUM: ACTIVELY ABSORBED. VITAMIN D INVOLVED.