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Questions and Answers
Describe the interior of the right atrium.
Describe the interior of the right atrium.
The interior of the right atrium is divided into the atrium proper and the sinus venarum, demarcated by the crista terminalis.
What structure separates the right atrium from the left atrium?
What structure separates the right atrium from the left atrium?
The right atrium is separated from the left atrium by the interatrial septum.
Explain the position of the right auricle in relation to the ascending aorta.
Explain the position of the right auricle in relation to the ascending aorta.
The right auricle projects forwards and to the left, overlapping the ascending aorta.
What is the significance of the crista terminalis in the right atrium?
What is the significance of the crista terminalis in the right atrium?
What forms the right border of the heart and how is it positioned relative to the left atrium?
What forms the right border of the heart and how is it positioned relative to the left atrium?
What separates the two atria from each other?
What separates the two atria from each other?
How is the interior of the right atrium related to the external surface of the heart?
How is the interior of the right atrium related to the external surface of the heart?
What structure separates the left atrium from the descending thoracic aorta and esophagus?
What structure separates the left atrium from the descending thoracic aorta and esophagus?
Name the orifices in the left atrium.
Name the orifices in the left atrium.
What is the cavity of the left atrium like?
What is the cavity of the left atrium like?
Describe the mitral (bicuspid) valve.
Describe the mitral (bicuspid) valve.
What are the features of the inflow part of the left ventricle?
What are the features of the inflow part of the left ventricle?
What is the name of the anterior rough part of the right atrium?
What is the name of the anterior rough part of the right atrium?
What structure forms most of the inferior border of the right ventricle?
What structure forms most of the inferior border of the right ventricle?
What are the openings that the sinus venarum receives?
What are the openings that the sinus venarum receives?
Where is the fossa ovalis located?
Where is the fossa ovalis located?
What divides the cavity of the right ventricle into an inflow and outflow part?
What divides the cavity of the right ventricle into an inflow and outflow part?
What is the raised, curved margin of the fossa ovalis called?
What is the raised, curved margin of the fossa ovalis called?
What is the function of the septomarginal trabecula (moderator band) in the heart?
What is the function of the septomarginal trabecula (moderator band) in the heart?
How many papillary muscles are there in the heart and what are their attachments?
How many papillary muscles are there in the heart and what are their attachments?
What is the oval aperture between the right atrium and right ventricle called?
What is the oval aperture between the right atrium and right ventricle called?
How many cusps does the pulmonary valve have?
How many cusps does the pulmonary valve have?
Where does the septomarginal trabecula (moderator band) extend from and to?
Where does the septomarginal trabecula (moderator band) extend from and to?
What separates the A-V orifice infundibulum in the heart?
What separates the A-V orifice infundibulum in the heart?
What is the continuation of the great cardiac vein in the heart?
What is the continuation of the great cardiac vein in the heart?
Where does the coronary sinus open in the heart?
Where does the coronary sinus open in the heart?
Which vein ascends in the anterior interventricular groove and joins the left end of the coronary sinus?
Which vein ascends in the anterior interventricular groove and joins the left end of the coronary sinus?
In which groove does the middle cardiac vein ascend, joining the coronary sinus at its right end?
In which groove does the middle cardiac vein ascend, joining the coronary sinus at its right end?
Which vein ascends on the diaphragmatic surface of the left ventricle to join the middle of the coronary sinus?
Which vein ascends on the diaphragmatic surface of the left ventricle to join the middle of the coronary sinus?
What is the name of the vein that descends on the back of the left atrium to join the coronary sinus at its left end?
What is the name of the vein that descends on the back of the left atrium to join the coronary sinus at its left end?
