Coloured scanning electron micrograph (SEM) of salmon gill lamellae. Fish gills consist of a series of filaments covered in well-ordered lamellae whic

---

Coloured scanning electron micrograph (SEM) of salmon gill lamellae. Fish gills consist of a series of filaments covered in well-ordered lamellae which have a rich capillary network and a large surface area to maximize oxygen diffusion. Oxygen-rich water passes through the narrow channels between the lamellae and the oxygen diffuses into the capillaries. Magnification: x115 when printed at 10cm wide.

---

Size: 4827px × 3620px
Photo credit: © JANNICKE WIIK-NIELSEN / SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: 2012, 21st, aarhus, adult, artificial, bank, biological, biology, caucasian, century, cold, container, containers, cryos, danish, denmark, donor, europe, european, export, fertilisation, fertility, fertilization, freezing, frozen, healthcare, human, insemination, international, ivf, lab, laboratory, largest, male, man, medical, medicine, order, packaging, packing, people, person, reproduction, reproductive, sample, shipment, shipping, sperm, technician, technological, technology, temperature, temperatures, treatment, vitro, white, worker, worlds