1.1 Chambers and Valves of the Heart Flashcards
What are the lateral surfaces of the heart called? Why?
- Left and right pulmonary surfaces
- Facing each lung
What is the inferior surface of the heart also called? Why?
- Diaphragmatic
- In contact with the diaphragm
What is the posterior surface of the heart also called?
The base
What is the other name for the anterior surface of the heart?
There isn’t one.
Which chamber of the heart forms the right pulmonary surface?
Right atrium
Which chamber of the heart forms the left pulmonary surface?
Left ventricle
Which chambers of the heart form the anterior surface of the heart?
Right ventricle (2/3)
Left ventricle (1/3)
Which chambers of the heart form the base/posterior surface?
Left atrium and posterior surface of right atrium
Which chambers of the heart form the diaphragmatic surface?
Right ventricle (1/3)
Left ventricle (2/3)
They swap compared to the anterior surface
Which chamber forms the right border?
Right atrium
Which chambers form the inferior border?
Right and left ventricles
Which chambers form the left border?
Left auricle and left ventricle
Which sections of the heart form the superior border?
- Right atrium
- Right auricle
- Infundibulum
- Left atrium
- left auricle
What are the functions of the fibrous rings of the cardiac skeleton?
- Electrical insulation between muscles of atria and ventricles
- Attachment to atrioventricular valves (tricuspid and mitral)
- Connects to muscles of atria and ventricles
Which valves do the fibrous coronets of the heart provide attachment to?
- Aortic
- Pulmonary
