Studied by 1 person
For PLTW course Principles of Biomedical Sciences (PBS)
What body system does the heart belong to?
Cardiovascular system
What is the general role of a pump?
Controlling blood flow around the body
What kind of blood do systemic pumps deal with?
Oxygenated
What side of the heart do systemic pumps work with?
Left
What is the job of systemic pumps?
Pumping oxygenated to the body and deoxygenated blood to the heart
What kind of blood do pulmonary pumps work with?
Deoxygenated
What side of the heart do pulmonary pumps work with?
Right
What is the job of pulmonary pumps?
Pump blood to the lungs to get oxygen
How many chambers does the heart have?
4
What is the general role of a chamber?
Receive and manage incoming blood?
What do the atriums do?
Receive blood as it enters the heart
What does the right atrium (RA) do?
Receives deoxygenated blood from veins
What does the left atrium (LA) do?
Receive oxygenated blood back from the lungs
What do the ventricles do?
Pump blood out of the heart
What does the right ventricle (RV) do?
Pushes blood to the lungs to get oxygen
What does the left ventricle (LV) do?
Pushes blood to the aorta to get to arteries
What is the general role of a vessel?
Deliver blood to organs around the body and back to the heart
What do veins do?
Carry blood TO the heart
What do the vena cava do?
Return blood to heart from the body
What do the pulmonary veins do?
Return oxygenated blood from the lungs to the heart
What do arteries do?
Carry blood AWAY from the heart
What does the aorta do?
Carries oxygenated blood to the whole body
What do pulmonary arteries do?
Move blood from heart to lungs
What is the general role of a valve?
Open or close fluid passages when needed
What do atrioventricular valves do?
Separate atriums and ventricles on each side
Where is the BIcuspid (Mitral) valve?
Between LA and LV
Where is the TRIcuspid valve?
Between RA and RV
What do semilunar valves do?
Separate each ventricle from the artery leading out
Where is the Aortic valve?
Between LV and aorta
Where is the Pulmonary valve?
Between RV and pulmonary trunk (pulmonary artery)
What is the common pattern for arteries and veins?
Oxygenated blood through arteries AWAY from heart, deoxygenated blood through veins TO the heart
Why does the heart go against the common pattern of arteries and veins?
Because of blood having to go to the lungs to receive oxygen; still follows the AWAY and TO the heart pattern
Why are the valves in the heart important?
To prevent backflow of blood
What are coronary arteries? What do they do?
Arteries in the heart muscles; provide oxygen for the heart tissues
Auricles
Ear-like extensions of the atria
Chordae Tendinae
Fibrous chords that attach to the tricuspid and bicuspid (mitral) valves
Papillary Muscles
Muscles in the ventricles that attach to the tricuspid and bicuspid (mitral) valves by the chordae tendinae
Note 
Flashcard (61)