Translation guide
In Japanese, the general term for blood vessel is 血管 (けっかん). More specific terms exist for arteries, veins, and capillaries, but 血管 is the most common and versatile word for everyday use.
Referring to any tubular structure carrying blood in the body, in general or non-specialist contexts.
The standard, neutral term for blood vessel. Used in medical and everyday contexts.
血管が細いので、注射が難しいです。
My blood vessels are thin, so injections are difficult.
血管は体中に張り巡らされている。
Blood vessels are spread throughout the body.
Specifically referring to a blood vessel that carries blood away from the heart.
The standard term for artery. Used in medical and anatomical contexts.
動脈は心臓から血液を運びます。
Arteries carry blood from the heart.
Specifically referring to a blood vessel that carries blood toward the heart.
The standard term for vein. Used in medical and anatomical contexts.
静脈は心臓に血液を戻します。
Veins return blood to the heart.
Referring to the smallest blood vessels where exchange of substances occurs.
The standard term for capillary. Literally 'fine hair blood vessel'.
毛細血管は非常に細いです。
Capillaries are very thin.