Breath by breath
Easy · Original draft · Review pending · Criss-cross style
Breath by breath
Eight clues about airways, air sacs and the action of breathing.
Tiny air sacs where gases move between air and blood (7)
Arrows move · Space changes direction · Enter selects the next clue
Across→
Down↓
About this respiratory system crossword
Four Across answers meet four Down answers about human airways, air sacs, gas exchange and a breathing action. The 10×10 criss-cross mixes body structures with one gas and one verb. Check whether a clue asks for a singular part, several structures or an action; some letters have no crossing word. This is a standalone practice puzzle; its printable answer key matches this grid.
10 × 10 grid · 8 clues · Criss-cross style
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Breath by breath
Easy · 10 × 10 · ClueFill · Unreviewed original draft
Across
1. Tiny air sacs where gases move between air and blood (7)
6. Breathe air out (6)
7. Paired main branches of the windpipe (7)
8. Breathing muscle that moves downward as it contracts (9)
Down
2. Paired chest organs that exchange gases with the blood (5)
3. Voice box containing the vocal folds (6)
4. Gas taken into the blood across the air sacs (6)
5. Windpipe supported by rings of cartilage (7)