chambers and associated great vessels Flashcards
how many chambers does the heart has
4 chambers; 2 atria and 2 ventricles
what does the atria do
it receives blood from the veins and helps assist in the filling of ventricles
what are the ventricles
- discharge chambers which are the actual pumps of the heart
- enlarge chambers in the Brian that contains chorus plexuses
what happens when the two ventricles contract
blood is propelled out of the heart and into circulation
what does the right ventricle do
forms most of the hearts anterior surface
what does the left ventricle do
forms the apex
what is the intertrial septum
the septum dividing the heart between two atrial
what is the inter ventricular septum
the septum dividing the heart between the two ventricals
artria equals what
assist
what does the heart double pump mean
arteries carry blood away from the heart
veins carry blood towards the heart
what is the right side of the heart pump called
the pulmonary circuit pump
what happens in the pulmonary circuit pump
the right ventricle carries blood to the lungs for gas exchange (where oxygen enters the blood, carbon dioxide leaves the blood) and back to the left atrium which is the receiving chamber of the heart.
what are the pulmonary veins
the large veins that carry blood back from the lungs to the left atrium
what does pulmonary mean
to the lungs
what is the large superior vena cava
the larger veins that carries blood from veins superior to the diaphragm back to the right atrium
what is the inferior vena cava
the larger veins that carries blood from veins inferior to the diaphragm back to the right atrium
what is the pulmonary trunk
the large artery connecting the right ventricle with the pulmonary arteries
what are the pulmonary arteries
parties that branch off the pulmonary trunk and carry blood to the lungs
what do arteries do
carry blood away from the heart
what happens when the pulmonary arteries carry blood to the lungs
oxygen is picked up and carbon dioxide is unloaded
what is oxygen poor and oxygen rich
The right side of the heart pumps oxygen-poor blood from the body to the lungs, where it receives oxygen. The left side of the heart pumps oxygen-rich blood from the lungs to the body.
what is the systematic circuit
system of blood vessels that carries nutrients and oxygen-rich blood to all body organs
how is pulmonary circuit different from the systematic circuit
the pulmonary involves gas exchange while the systemic involves all body organs getting oxygenated blood
which circuit is more powerful and thick
the systematic circuit because the walls are thicker and it is a more powerful pump
