What
differences can you describe between active and passive immunity?
Consider
the actions of the following defensive cells or chemicals: macrophage,
B cell, killer T cells, interferon and antibodies.Consider
the uses of the following common items: can opener, glue, phone book, garbage
disposal and spark plug.Match each
cell or chemical to a household item and explain the analogy.
Coronary
bypass surgery is often performed when a region of a coronary artery is
blocked.A section of vein from the
patient’s leg is then removed and sutured so that it makes a connection
between the aorta and the coronary artery, past the region that is blocked.Why
is it important for the surgeon to suture the vein in place in the correct
orientation?What would happen if
the piece of vein were sutured in backwards?
Andre
played a hard game of basketball, and wasn’t immune to hard hits, falls
and an array of bruises.He usually
did not feel most of the ‘hits’ and would count all his bruises later,
as he changed from his uniform.What
mechanisms allowed Andre to play hard and get hit hard without noticing?
One
of the opposing players was coughing during the last game.Several
days later, Andre started to feel feverish and went to bed early.When
he awoke he felt ok.What immune
mechanisms took place over night, that prevented Andre from succumbing
to the ‘bug’ he had been exposed to?