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
The left ATRIA receive blood through what
Pulmonary vein
Ventricle do what for the heart?
push and discharge the blood to different areas
how many valves are there?
4
where is tricuspid located in the heart?
right
where is the bicuspid located in the heart?
left, and is also known as the mitro
what is the purpose of Atrioventricular valve?
to make sure blood is not going backwards
Aortic semilunar valves leads to the________side
left
what are the 4 chambers?
2 Atria and 2 Ventricles
what do auricles and atria have in common?
auricles and atria sits in the same space
Pulmonary artery is the only artery that carries what?
deoxygenated blood
what is Atrioventricular groove known as?
-coronary sulcus
-sits in between atria and ventricles
what is the Interventricular groove?
a groove that separates anterior and posterior
Pulmonary vein is the only vein that carries what?
oxygenated blood
what is aorta in the body?
the largest artery
the left side of the heart has what?
higher pressure and longer circuit
the right side of the heart has what?
lower pressure and shorter circuit
who oxygenate the blood ?
Lungs
What is the shorter circuit we have in the heart?
coronary circulation
