chambers of the heart Flashcards
1
Q
how are the thickness of the heart chamber walls externally and internally different? Compare with sheep heart!
A
4 chambers total (2) atria (superior chambers) and (2) ventricles (inferior chambers) each atrium has an auricle, a flap that allows expansion, the posterior surface of each atrium is smooth while the anterior surface is rough due presence of pectinate muscles.
2
Q
what is anastomoses? what are their advantages?
A
where two or more arteries merge to form collateral circulation.
