1.5. Post Cardo Anaphy ECG Quiz Flashcards by Jewel Jace

The _______ extend through the interventricular
septum toward the apex of the heart
a. Sa node
b. AV node
c. Bundle of his
d. Purkinje fibers

c. Bundle of his

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Cardiac excitation normally begins in the
________
a. Sa node
b. AV node
c. Bundle of His
d. Purkinje fibers

a. Sa node

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All of the following describes about the heart
EXCEPT
a. For all its might, the heart is relatively small
relatively small same size as a closed fist
b. The heart rests on the diaphragm, near the
midline of thoracic cavity
c. About 1/3 of the mass of the heart lies to the
left of body’s midline
d. NOTA

c. About 1/3 of the mass of the heart lies to the
left of body’s midline

correct: 2/3 of the mass of the heart

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The base of the heart is its posterior surface. It is
formed by the atria( upper chambers) of the heart ,
mostly the left atrium.
a. First statement is true. Second statement
false
b. First statement is false. Second statement
true
c. Both statements are true
d. Both statements are false

c. Both statements are true

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The heart does not eject all of the blood it
contains during systole. Instead, a small volume
called the _______
a. EDV
b. ESV
c. SV
d. CO

b. ESV

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As afterload increases, the SV ejected by the
ventricles _______
a. Increases
b. Decreases
c. No change
d. AOTA

b. Decreases

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Point of Maximal Impulse
a. This is where the contraction of the RA is
more pronounced
b. This is where the contraction of the RV is
more pronounced
c. This is where the contraction of the LA is
more pronounced
d. This is where the contraction of the LV is
more pronounced

d. This is where the contraction of the LV is
more pronounced

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Between the Parietal and Visceral Serous
Pericardium is a closed space filled with
pericardial fluid which serves as a
a. Lubricant allowing the two surfaces to slide
past one another
b. Lubricant allowing the two surfaces to
contract to one another
c. Lubricant allowing the two surfaces to stay on
one another
d. Lubricant allowing the two surfaces to rise on
one another

a. Lubricant allowing the two surfaces to slide
past one another

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SV will ______ with an increase in preload
a. Increase
b. Decrease
c. Both
d. No change

a. Increase

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SV will _____ with an increase in afterload
a. Increase
b. Decrease
c. Both
d. No change

b. Decrease

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The thick middle layer of the heart
a. Epicardium
b. Endocardium
c. Myocardium
d. AOTA

c. Myocardium

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Visceral Pericardium
a. Epicardium
b. Endocardium
c. Myocardium
d. AOTA

a. Epicardium

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Heart rate less than 60bpm
a. Tachycardia
b. Bradycardia
c. Ventricular Fibrillation
d. PVC

b. Bradycardia

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As the ventricles continue to relax, the pressure
falls quickly. When ventricular pressure drops
below atrial pressure, the AV valves open, and
_________ begins.
a. Ventricular filling
b. Isovolumetric contraction
c. Ejection phase
d. AOTA

A.Ventricular filling

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The large diameter _____ rapidly conduct the
action potential beginning at the apex of the heart
upward to the remainder of the ventricular
myocardium
a. Sa node
b. AV node
c. Bundle of his
d. Purkinje Fibers

d. Purkinje Fibers

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During phase 0 of the cardiac action potential,
there is rapid influx of this ion:
a. Sodium
b. oxygen
c. hydrogen
d. potassium
e. calcium

a. Sodium

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This opening existed in the fetal heart
a. Fossa ovalis
b. Foraman Ovale
c. Foramen Ovale
d. B and C

c. Foramen Ovale

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The Descending aorta will turn into
a. Thoracic aorta
b. Common carotid artery
c. Subclavian artery
d. NOTA

a. Thoracic aorta

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The aortic semilunar valve opens at approximately
______ ventricular pressure
a. 90mmHg
b. 80mmHg
c. 70mmHg
d. 100mmHg

b. 80mmHg

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The pulmonary semilunar valve opens at
approximately _____ ventricular pressure
a. 9mmHg
b. 8mmHg
c. 7mmHg
d. 10mmHg

b. 8mmHg

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a low-pitched sound, often described as “lubb.”
a. First heart sound
b. Second heart sound
c. Third heart sound
d. Fourth heart sound

a. First heart sound

higher-pitched sound often described as “dubb”
a. First heart sound
b. Second heart sound
c. Third heart sound
d. Fourth heart sound

b. Second heart sound

The primary function of the atrioventricular valves
is to prevent backflow of blood into the atria
during ventricular
a. Relaxation
b. Contraction
c. Both
d. Nota

b. Contraction

During Diastole, the ventricles fill with blood from atria via open _______ .
a. Tricuspid and Pulmonic Valve
b. Mitral and Aortic Valve
c. Tricuspid and Mitral Valve
d. Pulmonic and Aortic Valve

c. Tricuspid and Mitral Valve

The first two-thirds of ventricular filling is passive; during the last one-third the atria contract and push the blood into the ventricles. This contraction is known as the a. Atrial Push b. Atrial Kick c. Atrial Pull d. Atrial Roll

b. Atrial Kick

The “dub” in Korotkoff’s heart sound is a. The mitral and tricuspid valves closing at diastole b. Associated with atrial contraction c. The aortic and pulmonic valves closing d. Indicative of right ventricular heart failure e. Associated with ventricular filling

c. The aortic and pulmonic valves closing

If the stroke volume is 70 ml and the heart rate is 85 beats per minute, the cardiac output is approximately _______________ liters per minute. a. 12 b. 6 c. 3 d. 24

b. 6

29. Which of these large vessels arise from the arch of the aorta? i. Right carotid vein ii. Brachiocephalic trunk iii. Left common carotid artery iv. Left subclavian artery v. Right subclavian artery a. III and IV only b. II, III and IV c. II, III and V d. I, II and III

b. II, III and IV

Between the Parietal and Visceral Serous Pericardium is a closed space filled with pericardial fluid which serves as a a. Lubricant allowing the two surfaces to slide past one another b. Lubricant allowing the two surfaces to contract to one another c. Lubricant allowing the two surfaces to stay on one another d. Lubricant allowing the two surfaces to rise on one another

a. Lubricant allowing the two surfaces to slide past one another

The pulmonary artery leaves the heart via the ________. a. Right auricle b. Left ventricle c. Right ventricle d. Left auricle

c. Right ventricle

The maximal heart rate (in beats per minute) during exercise allowable for a 70 year old male is _______. a. 150 b. 190 c. 120 d. 70

a. 150

The extent to which the ventricular walls are stretched a. Preload b. No load c. Afterload d. AOTA

a. Preload

The plateau exists because voltage gated Ca2+ channels remain a. Close b. Open c. Both d. NOTA

b. Open

Initiate action potentials, which spread across the atria and cause them to contract a. SA node b. AV node c. Bundle of his d. Purkinje fibers

a. SA node

The Bundle of His give rise to _________, which supply the ventricles a. SA node b. AV node c. Bundle of his d. Purkinje fibers

d. Purkinje fibers

Increased venous return results in a. Increased SV b. Increased CO c. Increased EDV d. AOTA

d. AOTA

Describes the initiation of ventricular repolarization. a. QRS Complexes b. ST seg c. P wave d. T wave

d. T wave

Newly oxygenated blood within the Pulmonary veins travels to the LA and passes through the ____ valve into the LV a. Tricuspid valve b. Pulmonic Valve c. Aortic Valve d. Mitral Valve

d. Mitral Valve

Blood within the LV travels down to the apex, where it is squeezed in a wringing motion during systole and moved from the apex to the LV outflow tract and finally out through the ______ valve to the aorta. a. Tricuspid valve b. Pulmonic Valve c. Aortic Valve d. Mitral Valve

c. Aortic Valve

The volume of blood ejected with each myocardial contraction a. Stroke Volume b. Cardiac Output c. Cardiac Input d. Stroke Capacity

a. Stroke Volume

During ______, the ventricles must be able to stretch to accommodate the blood entering the ventricles a. Systole b. Diastole c. AOTA d. NOTA

b. Diastole

During ________, the ventricles must be able to contract adequately to eject the SV a. Systole b. Diastole c. AOTA d. NOTA

a. Systole

Depicts sinus node and atrial depolarization. a. QRS Complexes b. ST seg c. P wave d. T wave

c. P wave

It is caused by blood flowing in a turbulent fashion into the ventricles, and it can be detected during passive ventricular filling. a. First heart sound b. Second heart sound c. Third heart sound d. Fourth heart sound

c. Third heart sound

The anterior wall of the atrium is rough due to the presence of ______. a. Pectoralis muscle b. Pectinate muscle c. Papillary muscle d. Papillary muscle

b. Pectinate muscle

Cardiac output is also influenced by a. BP b. MAP c. HR d. NOTA

c. HR

forms the apex of the heart a. LA b. LV c. RA d. RV

b. LV

During each cardiac cycle, there are four heart sounds, but in a normal heart only the first and second heart sound are loud enough to be heard through a _____ a. Phonocardiogram b. Stethoscope c. Central line d. Swan Ganz catheter

b. Stethoscope

Blood moves forward from the RA through the _____ valve to the RV a. Tricuspid valve b. Pulmonic Valve c. Aortic Valve d. Mitral Valve

a. Tricuspid valve

All of the following are true about the Common Carotid artery, Except