External Features Flashcards
How many sulci does the heart have?
3
What are the main sulci of the heart?
1) coronary sulcus
2) anterior interventricular sulci
3) posterior interventricular sulci
coronary sulcus separates…?
separates the atria from the ventricles
anterior interventricular sulcus separates…?
separates the ventricles on the anterior surface of the heart
posterior interventricular sulcus separates…?
separates the ventricles on the posterior surface of the heart
How many heart surfaces are there?
4
What are the heart surfaces?
1) superior surface
2) inferior surface
3) left pulmonary surface
4) right pulmonary surface
What forms the superior border of the heart?
Right and left atria and auricles
What forms the inferior border of the heart?
Right ventricle and small portion of left ventricle
What forms the right border of the heart?
Right atrium
What forms the left border of the heart?
Left ventricle and part of left auricle
Which direction does the heart base face?
Faces posteriorly
What direction does the heart apex face?
Directed anteriorly, inferiorly and to the left
What is the heart base formed by?
Formed by left atrium and small portion of right atrium
What is the heart apex formed by?
Formed by left ventricle
