Chap 18 - Blood
Bill wants to determine his blood type, so he takes a few drops of blood from a puncture wound in his finger and mixes it with various antisera. His blood cells agglutinate when mixed with the anti-A sera but not with the anti-B or anti-D sera. Which of the following is not true?
Bill's plasma contains Rh antibodies
Most of the iron removed from degraded hemoglobin is excreted by the kidneys.
False
Surface antigens on red blood cells determine how much oxygen is bound to hemoglobin.
False
Each of the following is a way that blood transports materials around the body EXCEPT
carbon dioxide from the lungs to the tissues.
The function of red blood cells is to ___________.
carry oxygen from the lungs to the body's cells
Platelets are
cytoplasmic fragments of large cells
The ________ is a procedure that is used to determine the number of each of the various types of white blood cells.
differential cell count
Red blood cell production is regulated by the hormone ________ which is mostly produced in the ________.
erythropoietin; kidneys
The total volume of blood in the body of an adult male is approximately 9-10 liters.
false
The percent fraction of formed elements relative to whole blood is the
hematocrit
Plasma proteins essential in body defense are the ________.
immunoglobulins
Aged and damaged erythrocytes are broken down by macrophages in all of the following places EXCEPT the ______________.
kidney
Platelets are pinched off from giant multi-nucleated cells in the bone marrow called ____________.
megakaryocytes
In adults, the only site of red blood cell production and the primary site of white blood cell formation is ______________.
red bone marrow
The normal pH of blood is
slightly alkaline
Most of the protein factors that are required for clotting are synthesized by _____________.
the liver
Sensitization during hemolytic disease of the newborn refers to ________________.
the mother's immune system producing antibodies against the fetus' RBCs
People with type AB blood are considered the "universal recipient" for transfusions because __________.
their blood lacks A or B antibodies
Albumins are the most abundant plasma proteins.
true
Eosinophils are often elevated in individuals suffering from an allergic reaction.
true
The most abundant component of plasma is __________.
water
The combination of plasma and formed elements is called
whole blood
RBCs typically live about 120 days. The main reason for this short lifespan in RBCs is their lack of a nucleus and thus the inability to repair themselves.
True