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The Human Circulatory System

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Across:

2.	The right atrium sends deoxygenated blood into the right ____________.
4.	A large blood vessel that carries blood to the heart.
12.	They send blood to the lungs.
14.	The walls of the veins are composed of __________ layers.

15.	The main artery in the body; it carries blood from the left ventricle to systemic circulation.
16.	Another name for high blood pressure.
17.	The force that exerts against the inside walls of a blood vessel.

Down:

1.	The human heart has two upper chambers called __________.
3.	The blood, heart, and blood vessels form the ____________________.
5.	Immature red blood cells synthesize large amounts of an iron-containing protein called _________.
6.	The subsystem of systemic circulation that supplies blood to the heart itself.
7.	Tiny blood vessels.

8.	A person's ________ is a series of pressure waves within an artery caused by the contractions of the left ventricle.
9.	The fluid that is collected by the lymphatic vessels and nodes.
10.	A fold of membranes that controls the flow of a fluid.
11.	Two areas of specialized tissue, know as _________, control the heartbeat.
13.	The large, muscular vessels that carry blood away from the heart.

© 2014 PuzzleFast.com, Noncommercial Use Only

The Human Circulatory System

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Across:

2.	The right atrium sends deoxygenated blood into the right ____________.
4.	A large blood vessel that carries blood to the heart.
12.	They send blood to the lungs.
14.	The walls of the veins are composed of __________ layers.

15.	The main artery in the body; it carries blood from the left ventricle to systemic circulation.
16.	Another name for high blood pressure.
17.	The force that exerts against the inside walls of a blood vessel.

Down:

1.	The human heart has two upper chambers called __________.
3.	The blood, heart, and blood vessels form the ____________________.
5.	Immature red blood cells synthesize large amounts of an iron-containing protein called _________.
6.	The subsystem of systemic circulation that supplies blood to the heart itself.
7.	Tiny blood vessels.

8.	A person's ________ is a series of pressure waves within an artery caused by the contractions of the left ventricle.
9.	The fluid that is collected by the lymphatic vessels and nodes.
10.	A fold of membranes that controls the flow of a fluid.
11.	Two areas of specialized tissue, know as _________, control the heartbeat.
13.	The large, muscular vessels that carry blood away from the heart.

© 2014 PuzzleFast.com, Noncommercial Use Only