Circulation route
Themed · Original draft · Review pending · Criss-cross style
Circulation route
Eight clues about the human heart, blood vessels and blood components.
Tiny cell fragment in human blood that helps start a clot (8)
Arrows move · Space changes direction · Enter selects the next clue
Across→
Down↓
About this circulatory system crossword
Four Across answers meet four Down answers about the human heart, blood vessels and blood components in a 10×10 criss-cross. Vessel clues describe blood flow relative to the heart; chamber clues distinguish receiving from pumping roles. Some letters have no crossing word. The printable key belongs to this standalone vocabulary practice puzzle.
Subject vocabulary · Topic knowledge can help with some clues.
10 × 10 grid · 8 clues · Criss-cross style
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Circulation route
Themed · 10 × 10 · ClueFill · Unreviewed original draft
Across
4. Microscopic vessel where blood exchanges materials with tissues (9)
5. Blood vessel that carries blood away from the heart (6)
6. Lower heart chamber that pumps blood into an artery (9)
7. Fluid portion of blood containing water and clotting proteins (6)
Down
1. Tiny cell fragment in human blood that helps start a clot (8)
2. Blood vessel that returns blood toward the heart (4)
3. Muscular organ that pumps blood through the circulation (5)
5. Receiving chamber in the upper part of the heart (6)