http://iceriverguards.info/female_marines
Female Space Marine Figure converted and painted by Jennifer Haley
Organs of the Female Space Marines
While the Cult Mechanicus have yet to receive a full body for inspection, they have at least hypothesized the presence of several organs that would be unique to female Space Marines and their purpose within the female system:
Phase 1 - Secondary Heart While the presence of this organ is yet to be confirmed, it seems likely that like their male counterparts, they have an additional heart to better circulate their enhanced blood and to provide a reserve should the first one be damaged in combat. It is thought to be smaller than the usual heart, as the female chest cavity is on average smaller than that of the male, making space a premium. This has led several Magos to surmise that the heart may act as a supplementary heart, rather than an additional heart, acting in support rather than an independent organ.
Phase 2 - Ossmodula Believed to have the same purpose as the normal Marine organ. May be slightly less effective.
Phase 3 - Yisceopa The first of the unique organs, this organ is a direct gene-alteration of the male Biscopea. This organ is implanted at the back of the skull, growing into the brain and to a certain extent the spinal column. This organ is responsible for the prolonging of the puberty stage of the recipient, so as to continue a steady creation of hormones required for other organs that need stimulation to work. As a side effect, this also results in increased fertility within the young female Marines, and leads to a heightened sexual awareness and prowess. This, of course, has led to many urban myths about scattered temples of followers of Dark Gods giving into their base desires, but this has proved baseless as of yet. Like all Marines, they are not forbidden reproduction, but it is normally discouraged, as the Chapter is fearful of the genetic stability of the offspring. (Note - this phenomenon must also be present with male Chapters, although as of yet they are reluctant to make any references to this point of their initiation)
Phase 4 - Haemastamen As per standard, this organ synthesizes chemicals to enhance the efficiency of the Marines blood. Combining with the effects of proper training and the output of the Yisceopa, this also helps to stimulate and enhance muscle growth.
Phase 5 - Kaliia Organs The female equivalent of the Larraman's organ. Instead of providing an efficient clotting agent like normal, this organ promotes rapid skin growth and healing. As such, many female Space Marines have scarring, but it is normally indistinguishable from their normal skin, albeit with a slightly darker tone. This is one of the disadvantages of the organ - it is quite possible for a female Space Marine to bleed to death if the wound is large enough, whereas a normal Marine would simply form a large clot that would heal into a mass of tough scar tissue. Also, as the female mind is far more efficient when dealing with pain than the male, this implant is actually two separate organs that are implanted simultaneously-the first, being the one just described, grafted onto the Primary Heart, while the second is implanted into the brain from the top of the skull. This allows for a female Space Marine, given the right hypno-indocrination and chemical therapy, to completely shut off the pain receptors of their brains and bodies - although only the most veteran and seasoned of female Space Marines can do this for extended periods of time without fail.
Phase 6 - Catalepsean Node Believed to be far less efficient than normal, requiring female Space Marines to actually sleep more often than a normal Space Marine requires to, perhaps as much as 120 minutes out of every 24 hours.
Phase 7 - Preomnor As per standard.
Phase 8 - Emoghopea The female-specific mutation of the Omophagea. Allows for a Marine to 'learn' from the digestion of animal tissue. Has resulted in female Space Marines having a far greater sensitivity to the emotional aspect of this innate learning rather than physical memory (believed to be caused by the influence of the Phase 3 implant, which creates a controlled, prolonged puberty, a time where emotional influence holds most sway over the body) So, by the tasting of an animal, she is able to determine whether the target was confused, frightened, excited, enraged, or any other emotion, up to within 3 days of tasting the material. It is not known whether the same debasement that occurs with the male organ (the various blood-drinking and flesh eating Chapters) is present, but it is assumed that such female Space Marines do exist, albeit acting in a more psychological fashion than their more debased counterparts.
Phase 9 - Multi-Lung As per standard.
Phase 10 - Occulobe As per standard, although it is believed that due to the influence of estrogen, it is believed that a female Space Marine's eyes can distinguish between more colors than a normal Space Marine with more clarity, with a comparable level of night vision capabilities (although it has been suggested that female Space Marines eyes can be more sensitive to bright light, due to the increase in optical cells that allow them to distinguish greater color depth)
Phase 11 - Lyman's Ear As per standard.
Phase 12 - Sus-an Membrane No evidence of such an organ can be found within the current post-mortem examinations preformed on the bodies that the Cult Mechanicus have recovered. This is believed to the fact that it is a very complex organ, and with the current proficiency level of mechanical suspended animation technology, has been ruled redundant and not used by the majority of female Space Marines. Also believed to be influenced by the Phase 6 implant.
Phase 13 - Melanochrome As per standard.
Phase 14 - Oolitic Kidney As per standard, although less efficient to prevent the Marine bleeding to death unnecessarily (see Phase 5)
Phase 15 - Neuroglottis As per standard, although it is suggested that this also alters the taste receptors for the Marine on an individual basis.
Phase 16 - Juucinaroid Female equivalent of the Mucranoid. Due to the influence of the Phase 5 implant, in addition to altering the sweat glands to create a heat-resistant liquid, this also aids in clotting blood by excreting a liquid that aids in blood clotting when exposed to oxygen. Unfortunately, it appears that this organ has mutated from its original purpose, also aiding in the supply of oxygen to the blood by 'absorbing' some of it through the skin. It is then entirely possible for a female Space Marine to die of suffocation if their entire body, externally, is deprived of oxygen for extended periods of time. They can operate normally for most combat purposes, but they rarely wear their armor outside of combat and formal occasions. Obviously, the more physical exertion that the Marine undegoes, the more oxygen they will be required to take into their enhanced system, increasing the risk. For that reason, initial training is conducted without much armor until appropriate hypno-therapy allows them to consciously alter their breathing patterns in all situations.
Phase 17 - Vanek's Gland Instead of providing the saliva of the Marine with an acidic quality, it instead works in conjunction with the Phase 2 implant to greatly strengthen the teeth of the Space Marine. The female can then chew, rather than melt, their way through several materials, although not as effective as a male Space Marine may do so with his Betcher's Glands.
Phase 18 - Progenoids It is not known what the influence of large amounts of estrogen has on the Progenoids, however it is believed that it serves the same purpose as the male equivalent-it must, unless female Space Marines have developed a method of storing and creating geneseed without biological incubation and subsequent maturation.
Phase 19 - White Carapace As per standard Black Carapace, suitably altered to take the female figure and internal organ placement into consideration.
Of course, all the organs above have been altered to operate over an extended period of time with small amounts of testosterone and a far larger influence of estrogen. The Cult Mechanicus are eager to recover a full specimen for examination, as it is quite obvious that female Space Marines are just as strong, fast, tough and efficient as their superhuman male counterparts, and the technology used to create them could be used to greatly enhance existing male organs with proper study and divination. And with all Chapters, it is theorized that some organs would have mutated from their 'Codex' behavior, and some may have been lost altogether.
