Unit 3: Heart, Lungs, and Life Vocabulary | Baamboozle - Baamboozle

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Unit 3 Review

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When we breath in, air travels down tubes called the __________ to the lungs.

respiratory tract

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Air, entering the body through the mouth and ______, travels to the neck

nostrils

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The respiratory tract runs from the neck to the chest. It contains the __________, larynx, and trachea.

pharynx

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At the end of the trachea, two small tubes, called _______, connect to the ________.

bronchi, lungs

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Inside the lungs, the bronchi divide into smaller tubes called ___________.

bronchioles

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At the end of the bronchioles, there are tiny air sacs, called ________. They are surrounded by blood capillaries.

alveoli

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Underneath the lungs there is a muscle called the __________.

diaphragm

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The central organ in the circulatory system is the _________.

heart

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The heart pumps blood around the body through __________.

blood vessels

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_______ collects, transports and releases gases, nutrients and waste products around the body.

Blood

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_______ take blood from the heart to the rest of the body.

Arteries

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_______ take blood to the heart.

Veins

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__________ are the smallest type of blood vessel. They connect the veins and the arteries.

Blood capillaries

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A _______ is created when a male cell fuses with a female cell.

zygote

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The male cell in reproduction

sperm

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The female cell in reproduction.

ovum

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