Front

epiglottis

Back

lid-like piece of cartilage that covers the voice box

Front

larynx

Back

voice box

Front

pharynx

Back

throat

Front

trachea

Back

windpipe

Front

visceral pleura

Back

inner fold of pleura closest to the lung tissue

Front

cilia

Back

thin hairs attached to the mucous membrane lining the respiratory tract

Front

bronchioles

Back

smallest branches of bronchi

Front

alveoli

Back

air sacs of the lungs

Front

parietal pleura

Back

outer fold of pleura lying closest to the ribs

Front

bronchi

Back

branches of the windpipe that lead into the lungs