1.5. Post Cardo Anaphy ECG Quiz Flashcards
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
Cardiac excitation normally begins in the
________
a. Sa node
b. AV node
c. Bundle of His
d. Purkinje fibers
a. Sa node
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
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
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
As afterload increases, the SV ejected by the
ventricles _______
a. Increases
b. Decreases
c. No change
d. AOTA
b. Decreases
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
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
SV will ______ with an increase in preload
a. Increase
b. Decrease
c. Both
d. No change
a. Increase
SV will _____ with an increase in afterload
a. Increase
b. Decrease
c. Both
d. No change
b. Decrease
The thick middle layer of the heart
a. Epicardium
b. Endocardium
c. Myocardium
d. AOTA
c. Myocardium
Visceral Pericardium
a. Epicardium
b. Endocardium
c. Myocardium
d. AOTA
a. Epicardium
Heart rate less than 60bpm
a. Tachycardia
b. Bradycardia
c. Ventricular Fibrillation
d. PVC
b. Bradycardia
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
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
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
This opening existed in the fetal heart
a. Fossa ovalis
b. Foraman Ovale
c. Foramen Ovale
d. B and C
c. Foramen Ovale
The Descending aorta will turn into
a. Thoracic aorta
b. Common carotid artery
c. Subclavian artery
d. NOTA
a. Thoracic aorta
The aortic semilunar valve opens at approximately
______ ventricular pressure
a. 90mmHg
b. 80mmHg
c. 70mmHg
d. 100mmHg
b. 80mmHg
The pulmonary semilunar valve opens at
approximately _____ ventricular pressure
a. 9mmHg
b. 8mmHg
c. 7mmHg
d. 10mmHg
b. 8mmHg
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
- 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
