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WorksheetsCirculatory System Part 2
Total questions: 20
Worksheet time: 32mins
How many chambers does the heart have?
2
5
4
3
All four chambers of the heart are anatomically different and have different functions/carry different blood.
True
False
What structure is found in babies before they are born that allows blood to be shunted between the right atria and left atria and then back out so that it can go towards the placenta. (Goal to allow us to bypass pulmonary circuit.)
Ductus artenosus
Sinus venosus
Foremen Ovale
Atrioventricular valves
What is the largest artery in the body?
Arterioles
Atrioventricular artery
Sinus venosus
Aorta
Which ventricle has more muscle?
Right ventricle
Left ventricle
Entrance to the heart is through what structure(s)?
Superior vena cava
Left atria
Inferior vena cava
Conus arteriosus
Heart contraction is called?
Fibrillation
Systole
Flutter
Diastole
Heart relaxation is called?
Diastole
BP
bradycardia
Systole
During ventricular systole.....what's going on?
Pressure in the ventricles rises.
AV valves close, preventing backflow into atria.
Semilunar valves open,
Blood is forced into the pulmonary artery and the aorta
Why is blood blue sometimes?
Blue blood is deoxygenated blood.
Blood only appears blue when we look at our veins because of how light is reflected on them.
Our blood just becomes depressed sometimes. :(
Blood is only blue when traveling through our venous system.
P wave is?
(a)
QRS complex is what?
(a)
What does the T wave signify?
(a)
What can we NOT see on an EKG?
Atrial recovery
Atrial contraction
Ventricular contraction.
Ventricular recovery
What is primary source of rhythmicity?
AV bundle
Bunlde of His
Purkinje fibers
Sinoatrial node
Sympathetic "cardioacceleratory center"?
Connects to SA and AV nodes and ventricle muscle
Neurotransmitter is acetylcholine.
Responds to fright, anxiety, excitement, and exercise.
From medulla via vagus nerve
Parasympathetic "cardioinhibitory center"?
"Fight or flight response"
Connects to SA and AV nodes primarily.
Can respond grief, severe depression.
neurotransmitter is norepinephrine.
If there was a blockage on one of the bundles (Right or Left), you would be able to see the QRS interval/complex.
True
False
What structure shunts blood from the pulmonary artery to the aorta. Allows for more blood to be shunted than between the foremen ovale.
Lamprey aorta.
Conus arteriosus
Sinus venosus
Ductus arteriosus.
When measuring blood pressure, which vessel's pressure is being measured?
Arteries
Venules
Capillaries
Arterioles
