blood anatomy
Formed elements make up about what percentage of blood?
45%
The total volume of blood in the body of an adult male is approximately ________ liters.
5-6
________ involves a cascade of reactions leading to the conversion of fibrinogen to fibrin.
Coagulation
The superior vena cava collect blood from the
Head, chest, and upper limbs
________ transport(s) oxygen and CO2 in the RBCs.
Hemoglobin molecules
Overall, the most common blood type is
O
A person with Type A blood has
antigen A on the RBCs and anti-B antibodies in the plasma
White blood cells that release histamine at the site of an injury are
basophils
The function of hemoglobin is to
carry oxygen
The function of red blood cells is to
carry oxygen from the lungs to the body's cells.
The ________ is a procedure that is used to determine the number of each of the various types of white blood cells.
differential count
White blood cells that are increased in individuals with allergic reactions are the
eosinophils
The process of red blood cell production is called
erythropoiesis
Red blood cell production is regulated by the hormone ________ which is mostly produced in the ________.
erythropoietin; kidneys
Capillaries with a perforated lining are called
fenestrated capillaries
A hematocrit provides information on
formed elements abundance
Each hemoglobin molecule contains
four iron ions
What are discontinuous capillaries
have a wide diameter
The waste product bilirubin is produced from
heme molecules lacking iron
More than 95 percent of the protein in a red blood cell is
hemoglobin
A typical adult hematocrit is
higher in males than females.
RBCs typically live about 120 days. The main reason for this short lifespan in RBCs is their
lack of nucleus
During a bacterial infection you would expect to see increased numbers of
neutrophils
Type O+ blood cannot be given to a type __________ recipient.
o-
A person's blood type is determined largely by the
presence of specific glycoproteins on the cell membrane
As blood travels from arteries to veins,
pressure drops
Most of the iron that is removed from degraded hemoglobin is
recycled to red bone barrow
All the circulating red blood cells originate in the
red bone barrow
In adults, erythropoiesis exclusively takes place in
red bone barrow
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.
If the blood types of a donor and recipient are compatible, then
there is no reaction between antibodies and antigens
The conversion of fibrinogen to fibrin is catalyzed by
thrombin
Which of the following is the innermost layer of a blood vessel?
tunica intima
Which blood type contains RBCs with surface antigen B only and plasma that contains only anti-A antibodies?
type b
The large vessels that return blood to the heart are called
veins
The combination of plasma and formed elements is called
whole blood.
how many blood types are there
8
A person with type AB blood has _______.
A and B antigens and neither anti-A nor anti-B antibodies
Which of the following proteins functions to store or transport oxygen?
hemoglobin
What is sickle cell anemia?
a deficiency in red blood cell hemoglobin.
The most abundant proteins in blood plasma are
albumins.
Hemolytic disease of the newborn may result if
an Rh-negative mother carries an Rh-positive fetus.
After donating 0.5 liter of blood, one would expect
an increased reticulocyte count