QuestionSBA
QuestionChoice
The crista terminalis is a **muscular** structure separating the internal surface of the right atrium.
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c
The crista terminalis is a cartilaginous structure that separates the interior surface of the structure labelled.
QuestionChoice
The coronary sinus receives coronary venous blood from the heart and opens into the right atrium. The main tributaries of the coronary sinus are the great cardiac vein, the small cardiac vein, the middle cardiac vein and the posterior cardiac vein.
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a
The coronary sinus opens directly into the structure.
QuestionChoice
The atrium proper is located anterior to the crista terminalis and includes the right auricle. It is an embryological derivative of the primitive atrium.
10041289
d
The atrium proper is located posterior to the crista terminalis.
QuestionChoice
The sinus venarum is located *posterior* to the crista terminalis of the right atrium. The sinus venarum forms part of the interior surface of the right atrium. It receives blood from the superior and inferior vena cavae and is derived embryologically from the sinus venosus.
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b
The sinus venarum is located anterior to the crista terminalis.
QuestionChoice
The coronary sulcus opens between the **inferior** vena cava orifice and the right atrioventricular orifice of the right atrium.
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e
The coronary sulcus opens between the superior vena cava orifice and the right atrioventricular orifice.
Concept
Chapter
2693
5274
Chambers of the heart
Topic
198
Thoracic anatomy
20556
Picture
3155
160 - Chambers of the heart (right atrium).png
images/gv9r831n1727764723814.jpg
images/gv9r831n1727764723814_256.jpg
images/gv9r831n1727764723814_512.jpg
KBgGDIJku3eEeYeveGW2iX+c+A==
Topic
198
Thoracic anatomy
Which of the following statements correctly describes the labelled structure? [lightgallery]
a