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th layer of cells directly below the epidermis which contains blood vessels, nerves, muscles, oil, and sweat glands. |
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| a pigment that protects your skin and gives it color |
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| the outer, thinnest layer of skin |
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| clusters of thin-walled sacs at the end of each bronchiole that are surrouded with capillaries; where the exchange of oxygen and carbon dioxide takes place |
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| the airway to which the vocal cords are attached |
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| a lung disorder that results in shortness of breath, whezzing, or coughing |
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| two short tubes that carry air into the lungs |
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| a diesese in which the alveoli in the lungs enlarge |
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| a tube like passageway that used by food, liquid, and air |
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the air conducting tibe lined with mucas membranes and cilia |
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| a muscle beneath the lungs that contracts and relaxes to help move gases into and out of the lungs |
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