Human eye. Macroscopic footage of part of the iris and pupil of a human eye. The iris is a circular structure, and pigmented, giving the eye its colour. It is composed mostly of smooth muscle, and contracts and relaxes under involuntary control to regulate the size of the pupil which allows light into the eye. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Clouds Hill Imaging |
Modell-Rechte: | nicht erforderlich |
Länge: | 4 Sekunden |
Seitenverhältnis: | 4:3 |
Restrictions: | - |