The mesentery is a fold of membrane that attaches the intestine to the abdominal wall and holds it in place. Mesenteric lymphadenitis is an inflammation of the lymph nodes in the mesentery.
If you're rhesus positive (RhD positive), it means that a protein (D antigen) is found on the surface of your red blood cells. If you do not have the D antigen, you will be rhesus negative (RhD negative). Most people are rhesus positive (NHS BT 2014) .f you're rhesus positive (RhD positive), it means that a protein (D antigen) is found on the surface of your red blood cells. If you do not have the D antigen, you will be rhesus negative (RhD negative). Most people are rhesus positive (NHS BT 2014) .
Being Rh-negative means you don't have a certain protein (D antigen or the Rh factor) on the surface of your red blood cells.If you do have it, you're Rh-positive.So the terms Rh-negative and Rh-positive are really just terms that further define what type of blood a person has, beyond the general blood type categories of A, B, AB, and O.f you do have it, you're Rh-positive. So the terms Rh-negative and Rh-positive are really just terms that further define what type of blood a person has, beyond the general blood type categories of A, B, AB, and O.