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Simultaneously the material of the filament is rearranged to form a tube which functions as a hypodermic needle and penetrates the gut epithelium.
en.wikipedia.org Porcupine quills have recently inspired a new type of hypodermic needle.
en.wikipedia.org The points of these hairs are brittle and break off easily, leaving a sharp point like a hypodermic needle, through which the fluid is injected.
en.wikipedia.org It can be successfully applied to air flow in lung alveoli, for the flow through a drinking straw or through a hypodermic needle.
en.wikipedia.org Brandishing a hypodermic needle filled with a sedative, the physician heads outside to continue his search.
en.wikipedia.org