BLOOD FLOW OF THE HEART Flashcards
About what size is the heart?
Approximately the size of a fist
The apex of the heart points to where?
Left hip
Where is the heart located?
Mediastinum, between second rib and fifth intercostal space
What is the pericardium?
Double wall sac covered by epithelial membrane called the serosa
What are the two types of membrane?
mucosal and serosal
What does visceral do?
always cover the organ itself
Myocardium do what?
contain and relax
What does the parietal do?
Paint the walls and cover the cavity where the organ sits in
What are the 3 layers of the heart?
-Epicardium
-Myocardium
-Endocardium
What is the Epicardium?
visceral layer of serous pericardium
What does the endocardium do?
covers inside of the heart walls
How many chambers is there?
4
2 Atria and 2 ventricles
The atria are what to the the heart?
receiving chambers
What does inferior vena cava do ?
all structures below the diaphragm will be drain
what does the superior vena cava do?
all structures above the diaphragm will be drain