Ch 18 Blood And Cha 19 Heart
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- 1.These are the least abundant formed elements,
- A.
Erythrocytes
- B.
Basophils
- C.
Neutrophils
- D.
Eosinophils
- E.
Platelets
- 2.The Volume of blood ejected by each ventricle in one minute is called
- A.
The cardiac reserve
- B.
The Cardiac output
- C.
The stroke volume
- D.
The afterload
- E.
The preload
- 3.____________ is the most abundant protein in Plasma
- A.
Creatine
- B.
Insulin
- C.
Bilirubin
- D.
Creatinine
- E.
Albumin
- 4.Mitral valve prolapse (MVP) generates a murmur associated with the ________ heart sound that occures when the ________.
- A.
Dupp (S2); ventricles relax
- B.
Dupp (S2); atria relax
- C.
Lubb (S1); atria contract
- D.
Lubb (s1); ventricles relax
- E.
Lubb (S1); ventricles contract
- 5.These are features of cardiac muscle finers except
- A.
They have about the same endurance as skeletal muscle fibers.
- B.
They depend almost exclusively on aerobic respiration
- C.
They are very rich in myoglobin.
- D.
They are rich in glycogen
- E.
They have huge mitochondria
- 6.The _________ is the pacemaker that initiates each heart beat.
- A.
Sinoatrial (SA) Node
- B.
Autonomic nervous system
- C.
Sympatheic division of nervous system
- D.
Atrioventricular (AV) node
- E.
Cardiac conducation system
- 7.This is the correct sequence of events of the cardiac cycle.
- A.
Ventricular filling → ventricular ejection→ isovolumetric contraction → isovolumetric rekaxation.
- B.
Ventricular filling → isovolumetric relaxtion Ventricular filling → isovolumetric contraction → ventricular ejection.
- C.
Ventricular filling → isovolumetric relaxation → ventricular ejection → isovolumetric contraction.
- D.
Ventricular filling → isovolumetric contraction → isovolumetric relaxtion → ventricular ejection.
- E.
Ventricular filling → isovolumetric contraction → ventricular ejection → isovolumetric relaxation.
- 8.Pericardial fluid is found between
- A.
The visceral pericardium and the epicardium
- B.
The visceral pericardium and the myocardium
- C.
Myocardium and endocardium
- D.
Epicardium and myocardium
- E.
The parietal and visceral membranes
- 9.Cardiac muscle shares this feature with skeletal muscle
- A.
Cardiac muscle fibers communicate by electrical (gap) junctions
- B.
Some cardiac muscle fibers are autorhythmic
- C.
Cardiac muscle fibers have striations
- D.
All cardiac muscle fibers depend on nervous stimulation
- E.
Cardiac muscle fibers are joined end to end by intercalated discs
- 10.Cardioinhibitory centers in the __________ receive input from __________.
- A.
Thalamus; chemoreceptors in the medulla oblongata.
- B.
Pons; baroreceptors in the internal carotid
- C.
Cortex; proprioceptors in the muscles
- D.
Hypothalamus; propriocepters in the joints
- E.
Medulla oblongata; chemoreceptors in the pernicious anemia.
- 11.A deficency of _______ can cause pernicious anemia.
- A.
Vitamin B12
- B.
Iron
- C.
Folic acid
- D.
EPO secretion
- E.
Vitamin C
- 12.Differential count of ________ typically increases in response to bacterial infection
- A.
Erythrocytes
- B.
Neutrophils
- C.
Monocytes
- D.
Eosinophils
- E.
Basophils.
- 13.The__________preforms the work of the heart.
- A.
Pericardial cavity
- B.
Endocardium
- C.
Myocardium
- D.
Epicardium
- E.
Fiberous skeleton
- 14.Anemia has these potential consequences except
- A.
The individual is lethargic
- B.
More fluid transfers from the bloodstream to the intercellular space
- C.
Blood viscosity is increased
- D.
Blood osmolarity is reduced
- E.
Blood resistance to flow is reduced
- 15.
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This figure shows the events of the cardia cycle. What does "4" represent?- A.
AV valve closing
- B.
Both aortic and AV valves opening
- C.
Aortic valve closing
- D.
AV valve opening
- E.
Aortic valve opening
- 16.This figure shows the e vents of the cardiac cycle. At 0.2 sec in the Gragh _______.
- A.
The aortic Valve in open
- B.
The AV valve is open
- C.
The ventricles have reached end-diastolic volume
- D.
The ventricles are in systole
- E.
The ventricles are in the isovolumetric phase
- 17.Most of the ventricle fillinf occurs
- A.
During atrial diastole.
- B.
During atrial systole
- C.
During ventricular systole
- D.
During isovolumetric contraction
- E.
When the AV valve is closed
- 18.The main reason why an individual AB, Rh-negative cannot donarw blood to an individual A, Rh-positive is because
- A.
Anti-D antibodies in the donor will agglutinate RBC of the recipient
- B.
Anto-B antibodies in rhw donor ill agglutinate RBCs of the recipient
- C.
Anti-A antibodies in the recipient will agglutinate RBCs of the donor.
- D.
Anti-B antibodies in the recipient will agglutinate RBCs of the donor.
- E.
Anti-B antibodies in the donor will agglutinate RBCs of the recipient
- 19.An individual has type B, Rh-positive blood. The individual has _______ antigen can produce anti- ________ antibody(ies)
- A.
D;A and B
- B.
A and D;B
- C.
B and D; A
- D.
B; A and D
- E.
A; B and D
- 20.Which of these is not part of the cardiac conduction system.
- A.
The tendinous cords (TC)
- B.
The Purjinje fiber
- C.
The sinoatrial (SA) node
- D.
The atrioventicular (AV) bundle (bubdle of His)
- E.
The atrioventicular (AV) node
- 21.Any abnormal cardia rhythm is called
- A.
Ectopic focus
- B.
Arrhythmia
- C.
Nodal rhythm
- D.
Heart block
- E.
Sinus rhythm
- 22.Atrial depolarization begins during
- A.
Atria systole
- B.
The T wave
- C.
The first heart sound
- D.
The QRS complex
- E.
The P wave
- 23.This is the correct path of an electrial excitation from the pacemaker to a cardiocyete in the left ventricle.
- A.
Sinoatrial (SA) node - atrioventricular (AV) bundle - atrioventricular (AV)node - Purjinje fibers - cardiocyte in LV
- B.
Sinoatrial (SA) node - atrioventricular (AV)node - atrioventricular (AV)bundle- purjinje fiber - cardiocyte in LV
- C.
Atrioventricular (AV) node - purjinje fiber- atrioventricular (AV) bubdle - sinoatrial (SA) node- Cardiocyte in LV
- D.
Sinoatrial (SA) node - atrioventricular (AV)node - purjinje fiber- atrioventricular (AV)bundle[ cardiocyte in LV
- E.
Atrioventricular (AV) node - sinoatrial (SA) node - atrioventricular (AV) bundle - purjinje finer cardiocyte in LV
- 24.The plateau in the action potential of cardiac muscle results from the action of
- A.
Fast CO2+ channels
- B.
K+ inflow.
- C.
Na+ Inflow
- D.
K+ outflow
- E.
Slow Ca2+ channels
- 25.These are the most abundant agranulocytes
- A.
Monocytes
- B.
Neutrophils
- C.
Eosinophils
- D.
Lymphocytes
- E.
Marcrophages
- 26.
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This figure shows the principal coronary blood vessels. which one is the left coronory artery (LCA)?- A.
11
- B.
1
- C.
8
- D.
3
- E.
5
- 27.Type AB blood has __________ RBC antigen(s)
- A.
No
- B.
Anti-A and anti-B
- C.
Anti A
- D.
Anti B
- E.
A and B
- 28.The cessation of bleeding is specifically called
- A.
Homeostasis
- B.
Hemeostats
- C.
Blood clotting
- D.
Vascular spasm
- E.
Platelet plug formation
- 29.The Frank-Starling law of the heart states that stroke volume us proportional to
- A.
Contractility
- B.
The end-systolic volume
- C.
The heart rate
- D.
The end-diastolic volume
- E.
The afterload
- 30.The buffy coat does not contain
- A.
Lymphocytes
- B.
Platelets
- C.
Erythricytes
- D.
Granulocytes
- E.
Agranulocytes
- 31.Mitral valve stenosis causes blood to leak back into the_______ when ventricles contract.
- A.
Pulmonary trunk
- B.
Right atrium
- C.
Left atrium
- D.
Aorta
- E.
Pulmonary arteries
- 32.
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A total count above _______________ WBCs/L is called leukocytosis.- A.
10,000
- B.
100,000
- C.
1,000
- D.
5,000
- E.
50,000
- 33.Correction of hypoxemia is regulated by
- A.
A cascade effect
- B.
A negative feedback loop
- C.
An enzymatic amplification
- D.
A positive feedback loop
- E.
A self- ampylifying mechanism
- 34.Isovolumetric contraction occures during the _________ of the electrocardiogram.
- A.
S-T segment
- B.
P-Q segment
- C.
T wave
- D.
P wave
- E.
R wave
- 35.________ carry oxygen-poor blood
- A.
Pulmonary veins and vena cavae
- B.
Venae cavae and pulmonary veins
- C.
Pulmonary veins and pulmonary arteries
- D.
Aorta and vena cavae
- E.
Aorta and pulmonary veins
- 36.
- A.
SV=30 mL/beat, HR=80bpm.
- B.
SV=40 mL/beat, HR= 60bpm.
- C.
SV=150 mL/beat, HR= 16bpm.
- D.
SV=80 mL/beat, HR= 30bpm.
- E.
SV=16 mL/beat, HR= 150bpm.
- 37.The long absolute refractory period
- A.
Makes the heart prone to arrhythmias
- B.
Prevents the occurrence of ectopic focuses
- C.
Ensures a short twitch
- D.
Prevents tetanus
- E.
Causes the pacemkaer potential
- 38.
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This figure shows electical activity of the Sa node,_____ indicate(s) when calcium enters the myocytes- A.
2
- B.
1 and 2
- C.
3
- D.
1
- E.
2 and 3
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