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.
![This figure shows the events of the cardia cycle. What does "4" represent?]( "This figure shows the events of the cardia cycle. What does \"4\" represent?")
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.
![This figure shows the principal coronary blood vessels. which one is the left coronory artery (LCA)?]( "This figure shows the principal coronary blood vessels. which one is the left coronory artery (LCA)?")
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.
![A total count above _______________ WBCs/L is called leukocytosis.]( "A total count above _______________ WBCs/L is called leukocytosis.")
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.
- 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.Assume that the left venticale of a child's hearts has an EDV =90mL,and ESV=60mL, and cardiac ouput of 2,400 mL/min. His SV and HR are
- 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.
![This figure shows electical activity of the Sa node,_____ indicate(s) when calcium enters the myocytes]( "This figure shows electical activity of the Sa node,_____ indicate(s) when calcium enters the myocytes")
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
.jpg "This figure shows the principal coronary blood vessels. which one is the left coronory artery (LCA)?")
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