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First Aid - General Knowledge - Study #40        Online Dictionary


Q1) Blood sirculation is essential for the distribution of __?__ and __?__ to cells and for the collections of __?__ products from cells for excretion from the body.


Q2) The heart is the organ that supplies blood and oxygen to all parts of the body. It is about the size of a clenched fist, weighs about __?__ ounces/grams, and is shaped like a cone. ?

Q3) The blood is composed of __?___.

Q4) How many chambers does the human heart contain?


Q5) The fluid filled sac that surrounds the heart is called the __?__.

Q6) The __?__ node is referred to as the pacemaker of the heart. It spontaneously contracts and generates nerve impulses that travel throughout the heart wall.

Q7) The audible sounds that can be heard from the heart are made by the closing of the heart __?__.

Q8) The __?__ artery extends from the aortic arch to supply blood to the head, neck and arm regions of the body.

Q9) The right ventricle of the heart receives blood from the right atrium and pumps it to the __?__ artery.

Q10) Oxygen, carbon dioxide, nutrients and wastes are exchanged through the thin walls of the __?__.