Heart Anatomy
These upper chambers of the heart share a name with the central hallway of a mansion
What is an atrium?
A common misconception is that these vessels carry oxygenated blood, but the are actually defined as carrying blood away from the heart
What are arteries?
This leukocyte is primarily found on the lymph vessels as opposed to the blood
What are lymphocytes?
This factor is multiplied by heart rate to calculate cardiac output; it refers to the amount of blood ejected from the heart each time it beats
What is stroke volume?
Capillaries are said to be the site of this - a synonym for transaction
What is exchange?
The left one of these must produce greater pressure than the right, so its walls are 3x as thick
What is a ventricle?
These vessels have low pressure, so they have additional adaptations such as valves and the muscular pump to help return blood to the heart
Whar are veins?
This is the most common leukocyte in the body - "Bacteria slayers"
What are neutrophils?
This term refers to the amount of blood in a ventricle after filling; there are two acceptable answers
What is preload or end diastolic volume?
This circuit oxygenates the blood to feed the systemic and cardiac circuits
What is the pulmonary circuit?
This word designates a left and right valve and is often shortened to "AV"
What is atrioventricular?
This is the largest artery in the body
What is the aorta?
This leukocyte kills parasitic worms
What are eosinophils?
This term refers to the amount of blood left in the ventricle after contraction - it increases when you are feeling relaxed, and decreases when you are stressed or exercising
What is end systolic volume?
An impulse from this nervous system is associated with a decrease in cardiac output - "rest and digest"
What is the parasympathetic nervous system?
The pulmonary and aortic valves are classified as this type of valve, which is reminiscent of the night sky
What is a semilunar valve?
This type of artery is most active in vasoconstriction and vasodilation
What are the muscular arteries?
This leukocyte differentiates into macrophages
What are monocytes?
This term refers to the pressure the ventricles must overcome in the arteries to eject blood - it is usually only noteworthy in people with cardiovascular disease
What is afterload?
This term explains the action of the ventricle during the QRS complex on an ECG
What is ventricular depolarization?
This division separates the heart into left and right; it also shares part of its name with a popular nose piercing
What is the interventricular septum?
This type of artery is most active in controlling blood flow to the capillaries - for example, reducing blood flow to the hands when one is cold
What are the arterioles?
You may take Benedryl if this leukocyte is overactive, as it produces histamine
What are basophils?
This term refers to how "stretchy" the heart is, or how hard it is beating
What is contractility?
This is the more important variable influencing blood flow in the body because it can change more freely
What is resistance?