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Blood vessel

Tubes that take blood to the body.


A vessel that takes away the blood from the heart.


a rhythmic change in blood pressure.


Thin blood vessels that take the blood cells to the veins.


Blood vessels that take the blood back to the heart.

The 3 types of blood vessels:

Artery, capillaries, veins.

Main artery


What separates the heart into two?


What are the 2 top two chambers of the heart?

Right atrium and left atrium.

What are the 2 bottom chambers or the heart?

Right ventricle and left ventricle.

What are the two blood vessels that carry blood to and from the lungs?

Pulmonary artery and pulmonary veins.

The two blood vessels that carry blood from the upper and lower parts of the body.

Superior vena cava and inferior vena cava.

What prevents blood from flowing back into a chamber of a heart?


Job of respiratory system

move oxygen from the outside enviroment into the body. Removes carbon dioxide from the body.

The difference between respiration and breathing

Respiration is chemical reactions inside a cell. Breathing is the movement of air in and out of your lungs.

How much of the air is real oxygen?

21 percent

What organs does air pass through as it moves from the outside enviroment to the lungs?

Nose, pharynx, trachea, bronchi.


Two main branches of the trachea, leading directly to the lungs.


A muscle under the lungs.


Voice box on top of trachea.

Left & right lung

Two large respiratory organs found on the two sides of your chest.

Trachea (windpipe)

The tube which air travels from the larynx to the lungs.

Aleveoli (air sacs)

Microscopic sacs in the lungs where the exchange and carbon dioxide take place.

What are the three jobs of the circulatory system?

Take oxygen to cells, take carbon dioxide from cells, and fight disease

What gas does blood bring to body cells so they can make energy?


What wastes does the blood pick up from body cells

Carbon Dioxide

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