Circulatory System Theme Unit
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Name _____________________________
Date ___________________
  Circulatory System
Word List
antibodies
antigens
aorta
arteries
atria
blood
blood vessels
capillaries
heart
hemoglobin
plasma
platelets
pulse
red blood cells
valves
veins
ventricles
white blood cells
 
 


Matching

Match each definition with a word.


1.   This is the red liquid that is carried by blood vessels throughout the body.

   blood   
2.   These are the large blood vessels that carry blood away from the heart.

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3.   This is what makes the blood red. It carries oxygen in the blood.

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4.   These are the cells which fight disease in the body.

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5.   These are the tubes which carry blood throughout the body.

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6.   These are proteins that are made by white blood cells. They react to something foreign in the body such as germs, bacteria, and viruses.

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7.   These are large blood vessels that carry blood to the heart.

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8.   This is the clear, liquid part of the blood that holds proteins, digested foods, wastes, and other substances.

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9.   two halves of the cerebrum

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10.   These are the lower chambers of the heart.

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11.   This can be taken in your wrist to count heartbeats in a minute’s time.

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12.   These are the tiny blood cells that stop bleeding.

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13.   This is the organ in your body, about the size of a fist, that pumps blood throughout the body.

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14.   These are the upper chambers of the heart.

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15.   These are the tiny blood vessels that connect arteries and veins.

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16.   These are the cells that contain hemoglobin and carry oxygen in the blood.

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17.   portion of the brain containing control centers for body’s functions and emotions; means “under the inner room”

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18.   These are flaps that stop blood from flowing the wrong way.

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19.   cells that support and nourish neurons

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20.   This is the main and largest artery in the body. It carries blood, which has oxygen, away from the left side of the heart to every part of the body, except for the lungs.

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21.   A substance that causes the body to produce antibodies.

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22.   message transmitted along nerve cells

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