Quiz 5

20問 • 1年前

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問題一覧

Where is the heart located?

In the thoracic cavity, behind the sternum within the mediastinum

Which of the following is NOT a function of the heart?

Regulate body temperature

What is the function of the endocardium?

To provide a smooth lining for the heart chambers

Which chamber of the heart receives deoxygenated blood from the body?

Right atrium

Which chamber of the heart pumps oxygenated blood to the body?

Left ventricle

What is the name of the valve between the right atrium and right ventricle?

Tricuspid valve

What is the name of the valve between the left atrium and left ventricle?

Mitral valve

What is the name of the opening between the right and left atria in the fetal heart?

Foramen ovale

What are the chordae tendineae?

Tendinous threads that attach the valve cusps to papillary muscles

Which blood vessel carries oxygen-rich blood from the lungs to the left atrium?

Pulmonary vein

What is the function of the coronary arteries?

To carry oxygen-rich blood to the heart muscle

What is the function of the coronary sinus?

To carry oxygen-poor blood from the heart muscle to the right atrium

Which of the following statements correctly describes the structure or function of the tunica layers in blood vessels?

The tunica media is primarily composed of smooth muscle and is responsible for regulating vessel diameter.

Which of the following is the primary pacemaker of the heart?

SA node

What is the function of the AV node?

To delay the transmission of electrical impulses to the ventricles

Which of the following statements accurately describes a key difference between arteries and veins?

Arteries carry blood away from the heart and typically have thicker, more muscular walls than veins.

What is the main function of the capillaries?

To exchange nutrients, oxygen, and waste products between the blood and tissues

What does the QRS complex on an ECG represent?

Atrial repolarization + Ventricular depolarization

In an ECG recording using Lead aVR, with the exploring electrode placed on the right arm, what is the expected ECG wave pattern when depolarization spreads from the SA node to the AV node?

Negative deflection

What are the three layers of the heart wall?

Myocardium, Endocardium, Visceral pericardium

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問題一覧

Where is the heart located?

In the thoracic cavity, behind the sternum within the mediastinum

Which of the following is NOT a function of the heart?

Regulate body temperature

What is the function of the endocardium?

To provide a smooth lining for the heart chambers

Which chamber of the heart receives deoxygenated blood from the body?

Right atrium

Which chamber of the heart pumps oxygenated blood to the body?

Left ventricle

What is the name of the valve between the right atrium and right ventricle?

Tricuspid valve

What is the name of the valve between the left atrium and left ventricle?

Mitral valve

What is the name of the opening between the right and left atria in the fetal heart?

Foramen ovale

What are the chordae tendineae?

Tendinous threads that attach the valve cusps to papillary muscles

Which blood vessel carries oxygen-rich blood from the lungs to the left atrium?

Pulmonary vein

What is the function of the coronary arteries?

To carry oxygen-rich blood to the heart muscle

What is the function of the coronary sinus?

To carry oxygen-poor blood from the heart muscle to the right atrium

Which of the following statements correctly describes the structure or function of the tunica layers in blood vessels?

The tunica media is primarily composed of smooth muscle and is responsible for regulating vessel diameter.

Which of the following is the primary pacemaker of the heart?

SA node

What is the function of the AV node?

To delay the transmission of electrical impulses to the ventricles

Which of the following statements accurately describes a key difference between arteries and veins?

Arteries carry blood away from the heart and typically have thicker, more muscular walls than veins.

What is the main function of the capillaries?

To exchange nutrients, oxygen, and waste products between the blood and tissues

What does the QRS complex on an ECG represent?

Atrial repolarization + Ventricular depolarization

In an ECG recording using Lead aVR, with the exploring electrode placed on the right arm, what is the expected ECG wave pattern when depolarization spreads from the SA node to the AV node?

Negative deflection

What are the three layers of the heart wall?

Myocardium, Endocardium, Visceral pericardium