lecture 7 Flashcards
in which structure is the oxygen saturation highest neutrophils, basophils, and eosinophils are all
granulocytes
What type of blood can a person with type O blood receive ?
O type
At the end of 120 days, the red blood cell
is removed from the circulation and broken down
prothrombin, thrombin, and fibrinogen
are involved in coagulation
what is the most common cause of myelosuppression
drugs, especially the anticancer drugs
what is vitamin k dependent
prothrombin
the epicardium is a layer of the
pericardium
what is descriptive of a neutrophil
phagocyte
blood flows from the pulmonary capillaries to the pulmonary veins to the left atrium to the left ventricle to the
aorta
rapid breakdown of which blood cell causes jaundice
red blood cell
which anticoagulant is secreted by mast cells (basophils)
heparin
blood flows from the right atrium through which atrioventricular valve to the right ventricle ?
tricuspid
what is an oxygen-carrying blood cell
erythrocytes
erythropoietin
stimulates the bone marrow to make RBC
this blood cell secretes both histamine and heparin
basophil
what is the breakdown product of heme
bilirubin
the purpose of this structure is to delay the spread of the. signal from the atrium to the ventricles
AV node
normal sinus rhythm (NSR)
cardiac impulse originates in the sinoatrial node
the cause of ventricular hypertrophy
the ventricle is working too hard
what supplies oxygenated blood to the heart muscle
coronary arteries
what blood cell is elevated in people with allergies and parasitic diseases
eosinophil
in which structure is the oxygen saturation highest
pulmonary vein
Which of the following is characteristic of the activated platelet?
Stickiness
Which of the following is most likely to be characterized by severe pain, organ damage, and hemolysis?
sickle cell anemia
Erythroblastosis fetalis is primarily a problem involving
agglutination and hemolysis
A hematocrit of 35% (male) is most often indicative of
deficiency of RBCs as in anemia
what best describes prothrombin and. fibrinogen
clotting factors
What is true regarding mediastinum
the mediastinum is a space between the lungs
What is part of the blood flow through the heart
left atrium
Blood type called the universal recipient
type ab
event that causes the pulmonic valve to open
an increase in the pressure within the right ventricle
Name of valve that prevents backflow of blood into the right atrium when right ventricle contracts
tricuspid
What receives oxygenated blood
pulmonary veins
Name of condition caused by a diet that is deficient in iron.
anemia
causes of deep vein thrombosis
venous stasis
red and white blood cells are
produced in the bone marrow
Which of the following is responsible for the opening and closing of the heart valves?
Pressure exerted on the valves as the heart contracts and relaxes
what is located between the visceral and parietal pericardium
a space that contains serous fluid
Why may a person who has had a gastrectomy (removal of the stomach) develop pernicious anemia?
Vitamin B12 absorption is impaired because of the lack of intrinsic factor.
What causes S1 and S2?
Closure of heart valves
what is common to all forms of severe anemia
hypoxemia
define nodal rhythm
the electrical signal arises within the AV node
thrombocytopenia
all of the above are true
not related to the heart
dorsal cavity
An infection is most often accompanied by
leukocytosis.
What is the most important role of hemoglobin?
Transport of oxygen
bilirubin is a breakdown product of
red blood cells
most related to biconcave disc, hemoglobin, and erythropoietin
red blood cell
In what way is the neutrophil similar to the monocyte? Both are
phagocytic.
not true of the heart
the pericardium is composed of actin and myosin
when is coronary blood flow greatest
during myocardial relaxation
rapid hemolysis causes
hyperbilirubinemia and jaundice
what structure received unoxygenated blood
right atrium
The right ventricle pumps blood to the
pulmonary artery
Which of the following best describes the function of the pulmonary artery?
It carries unoxygenated blood to the pulmonary capillaries.
The word icterus refers to
jaundice.
Why may a “racing heart” (170 bpm) cause chest pain?
A racing heart decreases diastole, the period when coronary blood flow is maximal
Which of the following best describes the heart as a double pump?
Right and left
Which type of anemia is associated with myelosuppression?
Aplastic
the aorta received blood from the
left ventricle
Kernicterus is most related to elevated plasma levels of which substance?
Bilirubin
Which of the following is most associated with a blood clot?
Fibrin strands
a vessel that carries blood from the pulmonary capillaries to the left atrium is the
pulmonary veins
What is the normal pH of blood?
7.35 to 7.45
Which of the following best indicates why the left ventricular myocardium is thicker than the right ventricular myocardium?
The left ventricle works harder than the right ventricle.
result of ventricular contraction
blood is pumped into the pulmonary artery and the aorta
Which layer of the heart allows it to act as a pump?
Myocardium
peacemaker of the heart is located in the upper wall of the
right atrium
Which of the following mom-baby combinations is most apt to induce erythroblastosis fetalis?
Mom A(-), baby A(+)
S2 is
the second heart sound
What are ventricles “doing” during atrial contraction?
Relaxing
Erythropoietin
all of the above are true
What is the hardest working cardiac chamber and therefore has the thickest myocardium?
left ventricle
Which of the following is called extrinsic factor?
Vitamin B12
Which structure is perfused by blood that flows from the pulmonary capillaries to the aorta?
left ventricle
what is caused by an overdose of heparin or warfarin sodium (coumadin)
bleeding
monocytes and lymphocytes
nongranular leukocytes
Which of the following is least associated with hemostasis?
Phagocytosis
Heme contains
iron
Which cavity first receives unoxygenated blood from the vena cava?
Right atrium
the heart
lies within the mediastinal and thoracic cavities
Which of the following is most likely to happen with the activation of plasminogen?
The blood clot dissolves.
What is the cause of the lubb dupp heart sounds?
Closing of the heart valves
best characterizes the effects of hemophilia
bleeding
Which of the following is true about the left ventricular myocardium?
contraction pumps blood into the aorta
Which of the following does the prothrombin time measure?
Clotting activity of the blood
referring to the ECG, the QRS complex represents ventricular
depolarization
During ventricular filling, the
ventricles are relaxed.
Which of the following conditions is most likely to cause erythroblastosis?
The baby is Rh+ and the mother is Rh-.
hemolysis causes
hyperbilirubinemia
