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The Respiratory System

Across
The voice box
Lined with a mucous membrane and fine hairs. Of which air passes through
Outer layer of the pleura lying closest to the chest wall
Thin piece of cartilage that covers the entrance to the voicebox and windpipe
Muscular wall separating the chest and abdomen
Spongy, air-filled organs located on either side of the chest
Splits into a number of alveolar ducts, which terminate in alveolar sacs and individual alveoli
Indivdualized section of an air sac in the lung
Small masses of lymphatic tissue in the throat
Red blood cell
Masses of lymphatic tissue on either side of the back of the mouth
Windpipe
Hollow, air cavity within a bone
Down
Double-folded membrane surrounding each lung
Of which air enters the body
First division of the pharynx
A passageway for food from the mouth and air from the nose
Part of the thoracic cavity between the lungs
Innermost membrane of the pleura, lying closest to the lung tissue itself
Smallest blood vessel
Tube that carries food from the pharnyx to the stomach
Branch of the trachea that leads towards the air sacs of the lung