Respiratory System
Gas exchange and breathing
smoking effects
excretory system
vocabulary
Challenge questions
100

This is where air enters the body first 

what is the nose?

100

the process of moving air in and out of the lungs

breathing

100

this harmful habit damages the lungs 

what is smoking 

100

this system removes wastes from the body 

excretory system 

100

the protein in red blood cells that carries oxygen 

hemoglobin

100

t/f: gas exchange occurs in the bronchi

false - alveoli 

200

This structure is shared by the respiratory and digestive systems

what is the pharynx?

200

these tiny air sacs are where gas exchange occurs 

alveoli

200

this chemical in smoke reduces oxygen in the blood 

carbon monoxide 

200

these organs filter blood and remove waste. 

kidneys 

200

the throat area that air and food pass through 

pharynx

200

t/f: nicotine is addictive 

true 

300

this tube carries from the throat to the lungs

what is the trachea?

300

this gas moves from the lungs into the blood

oxygen 

300

this disease involves destruction of lung tissue 

emphysema 

300

this liquid waste leaves the body 

urine 

300

the main function of the excretory system 

removing wastes 

300

why is the excretory system important?

removes wastes and maintains homeostasis

400

these are the branching tubes inside the lungs

bronchi

400

this waste gas moves from the blood into the lungs

carbon dioxide 

400

this addictive substance speeds up heart rate 

nicotine 

400

this waste is produces from protein breakdown 

urea

400

the process that produces carbon dioxide and water

cellular respiration 

400

what prevents food from entering the lungs

epiglottis 

500

this muscle helps you breathe by moving up and down 

what is the diaphragm 

500

this process releases energy from glucose using oxygen 

cellular respiration 

500

this disease can develop from tumors in the lungs 

lung cancer 

500

this tube carries from the kidney to the bladder 

ureter 

500

the structure that store urine

bladder 

500

name two ways the body maintains homestasis

removing wastes and regulating water balance 

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