Strokes and heart attacks occur when blockages in the arteries supplying the brain or heart muscles cut off the supply of blood to tissues.

当供应大脑或心脏肌肉的动脉阻塞，进而切断组织血液供应时，就会出现中风和心脏病发作的情况。

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The brain needs a continuous supply of blood.

大脑需要连续不断地供血。

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Sound mental activity results from normal circulation and a sufficient supply of blood.

健全的精神活动来自于正常的血液循行及充足的血液供应。

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When a baby's head is stuck in the birth canal for an extended period of time, it cuts off the blood supply to the woman's surrounding organs.

VOA: special.2010.08.09

Patients undergoing long-term elective surgeries are advised to donate their own blood, a practice Dr.Mwanda says accounts for a significant percentage of the hospital's surgery blood supply.

VOA: standard.2010.06.04

Topping up the supply of healing fluid might be done by mimicking another biological system the network of blood capillaries that supplies living tissues with the stuff they need to thrive.

ECONOMIST: Monitor

Dr. Velmahos said the hospital from its janitors to highest management had prepared for such an event, with ample blood supply and materials for an influx of near-death patients.

WSJ: At Boston Hospitals, An Ordinary Day Turns to Pandemonium

Such skin absorption occurs in other mammals, and the leathery look of elephant skin is deceptive it actually has a rich blood supply.

ECONOMIST: Elementary elephant control