Podcast
Questions and Answers
In the systemic circuit, arteries carry ______ blood to the tissues.
In the systemic circuit, arteries carry ______ blood to the tissues.
oxygen-rich
In the pulmonary circuit, arteries carry ______ blood to the lungs.
In the pulmonary circuit, arteries carry ______ blood to the lungs.
oxygen-poor
Blood vessels are composed of three layers: the ______, the thick smooth muscle wall, and the connective tissue.
Blood vessels are composed of three layers: the ______, the thick smooth muscle wall, and the connective tissue.
endothelium
Capillaries only have two thin layers: ______ and the basement membrane connective tissue.
Capillaries only have two thin layers: ______ and the basement membrane connective tissue.
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Blood flows from an ______ to an arteriole, then through a network of capillaries to a venule.
Blood flows from an ______ to an arteriole, then through a network of capillaries to a venule.
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The arterioles, capillaries, and venules together are collectively called ______ because you can only see these structures under a microscope.
The arterioles, capillaries, and venules together are collectively called ______ because you can only see these structures under a microscope.
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The human circulatory system consists of two ______: the pulmonary circuit and the systemic circuit.
The human circulatory system consists of two ______: the pulmonary circuit and the systemic circuit.
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In the pulmonary circuit, ______ blood flows to the lungs and then oxygen-rich blood flows back to the heart.
In the pulmonary circuit, ______ blood flows to the lungs and then oxygen-rich blood flows back to the heart.
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Blood from all over the body converges in the ______ atrium.
Blood from all over the body converges in the ______ atrium.
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In series blood flow, blood flow happens ______ after the other.
In series blood flow, blood flow happens ______ after the other.
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Blood must be pumped to the ______ before it goes to the rest of the body.
Blood must be pumped to the ______ before it goes to the rest of the body.
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The ______ venae cavae carry blood to the right atrium.
The ______ venae cavae carry blood to the right atrium.
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An ______ is a blood vessel that always carries blood away from the heart.
An ______ is a blood vessel that always carries blood away from the heart.
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A ______ is a blood vessel that carries blood to the heart.
A ______ is a blood vessel that carries blood to the heart.
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An ______ is a chamber of the heart that receives blood.
An ______ is a chamber of the heart that receives blood.
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A ______ is a chamber of the heart that expels blood.
A ______ is a chamber of the heart that expels blood.
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The heart is covered and lined with ______ tissue.
The heart is covered and lined with ______ tissue.
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The ______ of the heart points down and to the left.
The ______ of the heart points down and to the left.
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Diffusion only works over extremely small _____.
Diffusion only works over extremely small _____.
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An _____ is a blood vessel that always carries blood away from the heart.
An _____ is a blood vessel that always carries blood away from the heart.
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A _____ is a blood vessel that carries blood to the heart.
A _____ is a blood vessel that carries blood to the heart.
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An _____ is a chamber of the heart that receives blood.
An _____ is a chamber of the heart that receives blood.
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A _____ is a chamber of the heart that expels blood.
A _____ is a chamber of the heart that expels blood.
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The _____ of the heart points down and to the left.
The _____ of the heart points down and to the left.
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The human circulatory system consists of two _____: the pulmonary circuit and the systemic circuit.
The human circulatory system consists of two _____: the pulmonary circuit and the systemic circuit.
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In the pulmonary circuit, _____ blood flows to the lungs and then oxygen-rich blood flows back to the heart.
In the pulmonary circuit, _____ blood flows to the lungs and then oxygen-rich blood flows back to the heart.
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In the systemic circuit, arteries carry _____ blood to the tissues.
In the systemic circuit, arteries carry _____ blood to the tissues.
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The heart is covered and lined with _____ tissue.
The heart is covered and lined with _____ tissue.
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