File:Human Egg (2722043681).jpg
Original file (1,024 × 768 pixels, file size: 406 KB, MIME type: image/jpeg)
Captions
Summary
[edit]DescriptionHuman Egg (2722043681).jpg |
This ovum is in a primary follicle in an ovary removed from a 42-year-old woman with a benign ovarian cyst. Baby girls are born with all the ova they will ever produce, popping out one (and occasionally two) every 28 days from puberty until menopause. When it's time for the egg's great adventure, the ovarian tissue that encases the anointed egg proliferates and becomes differentiated into granulosa and theca cells, producing the much larger, cystic Graafian follicle. When mature, the follicle ruptures, and the egg explodes from the torn surface of the ovary (occasionally producing a pain called "mittelschmerz") and is swept up into the nearby fallopian tube, where, if sperm make the rendezvouz, it is fertlized and converted into a zygote that begins dividing. This early embryo continues its way down the tube and into the uterus, where it implants itself and develops into a baby. 400X, Hematoxylin and eosin. |
Date | |
Source |
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Author | Ed Uthman from Houston, TX, USA |
Licensing
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This image, originally posted to Flickr, was reviewed on 11 December 2013 by the administrator or reviewer File Upload Bot (Magnus Manske), who confirmed that it was available on Flickr under the stated license on that date. |
File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 11:50, 11 December 2013 | 1,024 × 768 (406 KB) | File Upload Bot (Magnus Manske) (talk | contribs) | Transferred from Flickr by User:CFCF |
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Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Camera manufacturer | NIKON |
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Camera model | E995 |
Exposure time | 10/51 sec (0.19607843137255) |
F-number | f/4.6 |
ISO speed rating | 100 |
Date and time of data generation | 10:30, 1 August 2008 |
Lens focal length | 26.9 mm |
Author | Picasa 2.7 |
Orientation | 0 |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Software used | Picasa 3.0 |
File change date and time | 10:30, 1 August 2008 |
Y and C positioning | Co-sited |
Exposure Program | Normal program |
Exif version | 2.1 |
Date and time of digitizing | 10:30, 1 August 2008 |
Meaning of each component |
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Image compression mode | 4 |
APEX exposure bias | 0.7 |
Maximum land aperture | 0 APEX (f/1) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash did not fire |
Supported Flashpix version | 1 |
Color space | Uncalibrated |
File source | Digital still camera |
Scene type | A directly photographed image |
Unique image ID | f955ce5b05f4fedf4dcd69b69b533607 |