Heart lab pract. Flashcards
What covers most organs in the ventral body cavity?
serous membrane
What are the two layers that makes up the serous membrane?
visceral and parietal
What does the fibrous pericardium do?
attaches to the diaphragm and great vessels of the heart, thus securing it in the mediastinum
What are the myocardial ridges inside the atria?
pectinate muscles
What separates right and left atria?
interatrial septum
What are the ridges of muscle called?
trabeculae carneae
What are the papillary muscles
largest trabeculae carneae
What are the string like attachments at attach to the tricuspid and bicuspid valve?
chordae tendineae
What is the foramen ovale?
in a fetal heart it is a internal septum so the blood can bypass the lungs and go to umbilical chord, which turns into the fossa ovalis
What is the ductus arteriousus?
connects the pulmonary trunk and aorta, goes from pulmonary artery to the ductus (bypass lung) to the aorta
On the right side of the heart what is the portion that returns blood from head, neck and arms?
superior vena cava
On the right side of the heart what vessel returns blood from body inferior to heart?
interior vena cava
Which great vessel on the right side receives blood from right ventricle
Pulmonary trunk
Which great vessel on the left side of the heart returns blood from the heart?
right and left pulmonary veins
Which great vessels of the heart on the left side receive blood from left ventricle
aorta
