PLM of crystals of the hormone adrenaline
Numéro d’image : 11521734
| Adrenaline. Polarized light micrograph of crystals of adrenaline (epinephrine). This is a hormone produced in the adrenal glands above the kidneys. Adrenaline is normally present in blood in small quantities. However,in times of stress large quantities are secreted into the blood- stream. Adrenaline widens the airways of the lungs,constricts small blood vessels and liberates sugar stored in the liver. This makes the muscles work harder and produce a "fight or flight" response. Adrenaline used as a drug expands the bronchioles in acute asthma attacks,or to stimulate the heart in cases of anaphylactic shock. Magnification: x30 at 4x5 inch size | |
| Licence : | Droits gérés |
| Crédit: | Science Photo Library / Pasieka, Alfred |
| Taille de l’image : | 4190 px × 5243 px |
| Model Release : | Non requis |
| Property Release : | Non requis |
| Restrictions : | - |
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