The Soviet Union duplicated its dual-launch feat with Vostok 5 and Vostok 6 (June 16, 1963). This time they launched the first woman (also the first civilian), Valentina Tereshkova, into space on Vostok 6. Launching a woman was reportedly Korolev's idea, and it was accomplished purely for propaganda value.
Lumen: A luminous term referring to the channel within a tube such as a blood vessel or to the cavity within a hollow organ such as the intestine. Lumen is a luminous term because it is Latin for light, including the light that comes through a window. When a hollow organ is cut across, you can see light through the space that has been opened. So the word lumen came to mean this space.
Seminal gland. The seminal gland, more commonly referred to as the seminal vesicle, holds the liquid that mixes with sperm to form semen. Semen combines fluid elements from the epididymis, seminal vesicles, prostate gland, and vas deferens.Each body part plays a key role in semen production.The fluids help the sperm swim towards the egg and keep the sperm nourished during the transit process.eminal gland. The seminal gland, more commonly referred to as the seminal vesicle, holds the liquid that mixes with sperm to form semen. Semen combines fluid elements from the epididymis, seminal vesicles, prostate gland, and vas deferens.