Anatomy Flashcards
What are the chamber of the heart?
Right atrium
Right ventricle
Left atrium
Left ventricle
Where does the RA receive blood from?
Vena cava
Where does the RV send blood?
Pulmonary artery
Where does LA receive blood from?
Pulmonary vein
Where does LV send blood?
Aorta
What forms the anterior border of the heart?
Right ventricle
What forms the posterior border of the heart?
Left atrium
What forms the inferior surface of the heart
Left + right ventricles
What forms the right border of the heart?
Right atrium
What forms the left border of the heart?
Left ventricle
What valve is between the RA and RV?
Tricuspid
What valve is between the LA and LV?
Mitral
How many cusps does the tricuspid valve have?
Three
How many cusps does the mitral valve have?
Two
Where can the tricuspid valve be heard?
4/5th ICS lower left sternal edge
Where can the mitral valve be heard?
5th ICS midclavicular
Where can the aortic valve be heard?
2nd ICS right sternal edge
Where can the pulmonary valve be heard?
2nd ICS left sternal edge
What are the layers of the heart wall?
Endocardium
Subendocardial layer
Myocardium
Epicardium
What is the endocardium?
Lines the cavities and valves
Loose connective tissue + simple squamous epithelium
What is the subendocardial layer?
Loose fibrous tissue
Contains vessels and Purkinje fibres
What is the myocardium?
Cardiac muscle
Involuntary striated muscle
What is the epicardium?
Connective tissue + fat
Where does the right coronary artery run?
Branches to the right of pulmonary trunk
Gives of the right marginal artery
- runs towards apex
Runs along coronary sulcus to posterior aspect of heart
Give of posterior interventricular artery
- follows posterior interventricular groove