40 Questions
Which chamber of the heart forms the apex?
Left ventricle
In the thoracic cavity, which structure forms the inferior border of the heart?
Right ventricle
Which landmark does the right atrium align with in relation to the sternum?
Right border of the heart
Where is the right ventricle positioned relative to the sternum?
Behind and immediately left of it
Which chamber of the heart forms most of the left border and diaphragmatic surface?
Left ventricle
Which of the following is NOT a correct border of the heart?
Posterior (interventricular septum)
Which of the following sulci (grooves) does NOT mark the division between the atria and ventricles?
Interventricular sulci
Which of the following structures is NOT a feature of the right atrium?
Chordae tendineae
Which of the following structures is associated with the right ventricle?
Septomarginal trabecula (moderator band)
Which of the following structures is responsible for the inflow of blood into the right atrium?
Superior vena cava and inferior vena cava
What is the name of the serous membrane that lines the inner surface of the fibrous pericardium?
Parietal serous pericardium
Which of the following structures is located in the posterior mediastinum?
Esophagus
What is the name of the recess located between the left atrium and pulmonary veins?
Oblique pericardial sinus
What is the clinical significance of the transverse pericardial sinus?
It allows for temporary ligation of the ascending aorta and pulmonary trunk during cardiac surgery.
Which of the following is NOT a feature of the right ventricle?
Mitral valve
Which structure lies on the posterior side of the heart and forms most of the heart's base?
Left atrium
What is the main clinical implication of blood regurgitated through the mitral valve leading to a dilated left atrium?
Heart arrhythmia or failure
Collagenous rings in the heart anchor myocardium & valve cusps and serve as a passageway for conducting system fibers. What is the primary function of these rings?
Maintain electrical insulation between atria & ventricles
Which valve has three cusps: anterior, posterior, and septal?
Pulmonary valve
Where does the right coronary artery typically originate from?
Right aortic sinus
Where is the right atrium positioned in relation to the sternum?
To the right of the sternum
What forms the inferior border of the heart?
Right ventricle
Which structure contributes to most of the left border and diaphragmatic surface of the heart?
Left ventricle
What does the left ventricle form anatomically within the heart?
Apex
Which feature is characteristic of the right ventricle?
Trabeculae carneae
Which of the following is NOT a feature of the right ventricle?
Pectinate muscles
Which chamber of the heart forms the majority of the diaphragmatic (inferior) surface?
Left ventricle
Which structure in the right atrium contains the fossa ovalis, a remnant of the fetal foramen ovale?
Interatrial septum
The coronary sulcus on the heart's surface marks the division between which two heart chambers?
Atria and ventricles
Which of the following is NOT a correct border of the heart?
Inferior (RV)
Which of the following is a feature of the right ventricle?
Presence of the moderator band
Which surface of the heart is formed primarily by the right ventricle?
Diaphragmatic surface
What is the name of the muscular ridge located in the right atrium that separates the venous component from the atrial component?
Crista terminalis
Which of the following borders of the heart is formed primarily by the right ventricle?
Right border
What is the name of the smooth-walled portion of the right atrium where the venous component (sinus venarum) is located?
Sinus venarum
Which of the following structures is NOT a feature of the right ventricle?
Bicuspid valve
Which surface of the heart is formed primarily by the left ventricle?
Inferior (diaphragmatic) surface
Which of the following structures is responsible for the inflow of blood into the right atrium?
Both b and c
What is the primary function of the collagenous rings in the heart?
All of the above
Which of the following is NOT a feature of the right atrium?
Bicuspid valve
Explore the anatomical features of the left atrium and left ventricle in the human heart including trabeculae carneae, septomarginal trabecula, chordae tendineae, and other distinctive structures. Test your knowledge on the detailed anatomy of the heart's chambers.
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