The pericardium, or pericardial sac: (Select all that apply)

is a double-layered, closed structure.

anchors the heart in the mediastinum.

has a tough fibrous connective tissue inner layer.

has an inner layer of squamous epithelial cells.

is the location of the pacemaker cells of a normal heart.

prevents blood flow from the right ventricle to the right atrium.

prevents blood flow from the left ventricle to the left atrium.

prevents blood flow from the pulmonary artery to the right ventricle.

prevents blood flow from the aorta to the left ventricle.

All of the following are functions of the heart EXCEPT:

generation of formed elements of the blood

regulates rate and force of blood delivery

distributes oxygenated blood to tissues

Which of these statements concerning the functional characteristics of the heart chambers is NOT correct?

During ventricular diastole, the semilunar valves open.

During ventricular diastole, blood collects in the right and left atria.

At the very beginning of ventricular diastole, blood flows directly from the atria into the relaxed ventricles.

70% of ventricular filling occurs before the atria contract.

During ventricular systole, the atrioventricular valves close.

Which of these statements concerning the normal pathway of blood flow is NOT correct?

from the pulmonary veins to the right atrium

from the pulmonary arteries to the lungs

from the aorta to all parts of body except lungs

from the coronary sinus to the right atrium

Neither from the pulmonary veins to the right atrium nor from the coronary sinus to the right atrium is correct.

Which of these statements concerning the form and location of the heart are correct?

The apex is directed to the left, and deep to the fifth intercostal space.

The base of the heart is directed inferior and slightly posterior.

The apex is the most superior part of the heart.

The most superior part of the heart is deep to the 12th intercostal space.

Both the apex is the most superior part of the heart and the base of the heart is directed inferior and slightly posterior are correct.

HEART

Authored by REYNALYN BATAAN

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OPEN ENDED QUESTION

3 mins • 1 pt

Identify the components & types of circulation in cardiovascular system.

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OPEN ENDED QUESTION

3 mins • 1 pt

List the major functions of the heart.

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OPEN ENDED QUESTION

3 mins • 1 pt

Recognize the characteristics of the heart.

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OPEN ENDED QUESTION

3 mins • 1 pt

Describe the anatomical structure of the heart and their significant roles.

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OPEN ENDED QUESTION

3 mins • 1 pt

Outline the route of blood flow through the heart.

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OPEN ENDED QUESTION

3 mins • 1 pt

Define the blood vessels involved in coronary circulation.

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OPEN ENDED QUESTION

3 mins • 1 pt

List the structural and functional description of each heart wall component.

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HEART

Identify the components & types of circulation in cardiovascular system.

List the major functions of the heart.

Recognize the characteristics of the heart.

Describe the anatomical structure of the heart and their significant roles.

Outline the route of blood flow through the heart.

Define the blood vessels involved in coronary circulation.

List the structural and functional description of each heart wall component.

Describe the characteristics of electrical activities of the heart such as action potential and conduction system.

Identify the waves of an electrocardiogram and its relationship to the heart contractions.

State the major cardiac arrhythmias with its symptoms and possible causes which can be detected using electrocardiogram.

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