Red blood cells sense low oxygen in the brain

images of blood cells in capillaries

TO THE RESCUE  When oxygen levels are low (bottom), red blood cells become more flexible and squeeze through an artificial capillary quickly. When oxygen levels are high (top), the cells move slower. 

H. Wei et al.

This article is only available to Science News subscribers.

Subscribers, enter your e-mail address to access our archives.

Not a subscriber?

Science News is a nonprofit.

Support us by subscribing now.

More Stories from Science News on Neuroscience

From the Nature Index

Paid Content