Crystals of anhydrous cholesterol

Numéro d’image : 13452176
Crystals of anhydrous cholesterol
Scanning electron micrograph of anhydrous cholesterol. The picture shows small elongated fatty crystals that have aggregated into clumps.The largest clump (diagonal, centre) is about 1mm long. Cholesterol is synthesised in all animal cells. It is hydrophobic, has a rigid molecular structure, and so plays a major role in maintaining the integrity of cell membranes. It is also the starting point for the synthesis of many compounds, including the sex hormones oestrogen and testosterone. Its concentration in the body is highly regulated; increased dietary consumption leads to lower synthesis within the liver. In blood, cholesterol occurs within Low Density Lipoproten particles (LDL - so called ad cholesterol""). LDL particles can lead to plaques in blood vessel walls, a primary cause of heart attacks and stroke. Red meat, eggs and butter are major sources of cholesterol in the diet"
Licence : Droits gérés
Crédit: Science Photo Library / Burgess, Dr. Jeremy
Taille de l’image : 3468 px × 5212 px
Model Release : Non requis
Restrictions : -

Prix pour cette image À partir de 45 €

Produit vendu
(Calendrier, Carte postale, Carte de vœux, Impression sur textile, Packaging etc)
À partir de 45 €
Usage commercial
(Affichage, Annonce presse, Annonce TV, Carte, Digital - hors rés. sociaux, Digital - rés. sociaux etc)
À partir de 45 €
Éditorial
(Digital, Journal, Livre, Livre pratique, Magazine, Télévision etc)
À partir de 60 €
Usage non-commercial
(Digital - hors rés. sociaux, Digital - rés. sociaux etc)
À partir de 120 €

Mots clés

;