MEDCA EKG Study Guide exam with complete solutions
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Course
MEDCA EKG
Institution
MEDCA EKG
The average hearts beats how many times everyday?
100,000
The average heart pumps how many times everyday?
2,000
The human heart weighs approximately how much?
11 ounces
The human heart is about the size of what?
a clenched fist
The heart is made up of specialized mu...
medca ekg study guide exam with complete solutions
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MEDCA EKG
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MEDCA EKG Study Guide exam with
complete solutions
The average hearts beats how many times everyday? - ANSWER-100,000
The average heart pumps how many times everyday? - ANSWER-2,000
The human heart weighs approximately how much? - ANSWER-11 ounces
The human heart is about the size of what? - ANSWER-a clenched fist
The heart is made up of specialized muscle tissue called what? - ANSWER-
Myocardium
The heart is divided into how many separate chambers? - ANSWER-4
The right and left what make up the top portion of the heart? - ANSWER-atrium
The right and left atria are the __________ chambers of the heart. - ANSWER-receiving
The right and left ventricles are the heart's ____________ chambers. - ANSWER-
pumping
The heart has how many valves? - ANSWER-4
Name the heart valves - ANSWER-1. Tricuspid
2. Pulmonic
3. Mitral
4. Aortic
The _______________________ is located between the right atrium and right ventricle.
- ANSWER-tricuspid valve
, The _____________________ separates the left ventricle from the aorta. - ANSWER-
aortic valve
The "lub-dub" sounds heard with a stethoscope are the sounds of the heart valve
____________. - ANSWER-closing
The pulmonic valve is located between the ________________ and the pulmonary
artery. - ANSWER-right ventricle
The major blood vessels attached to the heart include... - ANSWER-aorta, superior and
inferior vena cava, pulmonary vein, artery
The body returns oxygen-depleted blood to the heart via the
________________________. - ANSWER-Superior vena cava
The right ventricle pumps blood through the pulmonary artery out of the ___________. -
ANSWER-lungs
Oxygen-rich blood flows to the heart through the _____________________________. -
ANSWER-Pulmonary veins
The hardest working chamber of the heart is the
_________________________________. - ANSWER-left ventricle
Systole/Diastole is the pressure inside the arteries during ventricular contraction, when
blood is pumped from the heart to the body. - ANSWER-Systole
Systole/Diastole pressure is the intra-atrial pressure during the period of ventricular
relaxation. - ANSWER-Diastole
Systole/Diastole pressure is represented by the lower of the two readings. - ANSWER-
Diastole
Systolic/Diastolic pressure is represented by the higher of the two numbers. -
ANSWER-Systolic
The contraction of the heart muscle is caused by the flow of
___________________________________ through the muscle tissue. - ANSWER-
electrical impulses
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