*What are main compositions of Semen?
Semen, also called seminal fluid, fluid that is emitted from the male reproductive tract and that contains sperm cells, which are capable of fertilizing the female eggs. Semen also contains other liquids, known as seminal plasma, which help to keep the sperm cells viable.
In the sexually mature human male, sperm cells are produced by the testes (singular, testis); they constitute only about 2 to 5 percent of the total semen volume. As sperm travel through the male reproductive tract, they are bathed in fluids produced and secreted by the various tubules and glands of the reproductive system. After emerging from the testes, sperm are stored in the epididymis, in which secretions of potassium, sodium, and glycerylphosphorylcholine (an energy source for sperm) are contributed to the sperm cells. Sperm mature in the epididymis. They then pass through a long tube, called the ductus deferens, or vas deferens, to another storage area, the ampulla. The ampulla secretes a yellowish fluid, ergothioneine, a substance that reduces (removes oxygen from) chemical compounds, and the ampulla also secretes fructose, a sugar that nourishes the sperm. During the process of ejaculation, liquids from the prostate gland and seminal vesicles are added, which help dilute the concentration of sperm and provide a suitable environment for them. Fluids contributed by the seminal vesicles are approximately 60 percent of the total semen volume; these fluids contain fructose, amino acids, citric acid, phosphorus, potassium, and hormones known as prostaglandins. The prostate gland contributes about 30 percent of the seminal fluid; the constituents of its secretions are mainly citric acid, acid phosphatase, calcium, sodium, zinc, potassium, protein-splitting enzymes, and fibrolysin (an enzyme that reduces blood and tissue fibres). A small amount of fluid is secreted by the bulbourethral and urethral glands; this is a thick, clear, lubricating protein commonly known as mucus.
Essential to sperm motility (self-movement) are small quantities of potassium and magnesium, the presence of adequate amounts of oxygen in the plasma, proper temperature, and a slightly alkaline pH of 7 to 7.5. Sulfate chemicals in semen help prevent the sperm cells from swelling; and fructose is the main nutrient to sperm cells.
What is Haptic Technology? Haptic Technology or haptics, is a tactile feedback technology which takes advantage of the sense of touch by applying forces, vibrations, or motions to the user. Haptic refers
What is the World’s most littered Plastic item? Smokers around the world buy roughly 6.5 trillion cigarettes every year . That’s 18 billion every day. While most of a cigarette’s innards
*How can you tell if a Mushroom is poisonous? Many types of Mushrooms are good to eat. The Fruiting bodies of other fungi like Truffles and Puffballs are also tasty.
Why do Bags of Chips have Air in them? Potato Chip Bags are not full of Air, but of Nitrogen gas. This is done to prevent the Chips from oxidizing, which
Why do Mosquito bites itch? While bees and wasps inject venom when they sting, mosquitoes simply bite to feed on your blood. The bumps and itchiness that follow come from an
What are virtual SIM cards and what do they do? Unlike a SIM card, virtual SIMs are not attached to a mobile. They are created online to help you communicate. It is
What makes a Fabric Waterproof? One type of Waterproof Fabric is waterproof simply because the Threads are woven so tightly that water cannot easily get inside or through. Other Waterproof materials
Does the Moon really have Volcanoes? Yes, the Moon has some Volcanoes, but scientists classify them as Dead Volcanoes because they have not erupted for millions, perhaps billions,
What is Seamount? A Seamount is a mountain rising from the ocean seafloor that does not reach to the water's surface (sea level), and thus is not an island, islet or cliff-rock. Seamounts are typically formed from extinct volcanoes that rise abruptly and are
What is ISO setting in DSLR camera? The letters ISO on your digital SLR camera refers to film speed. Even though your camera is most likely not film at all, but
What is TestTube Baby? In a normal pregnancy, a male sperm penetrates a woman's egg and fertilizes it inside her body after ovulation, when a mature egg has been released from the
How is food cooked in a Microwave? Cooking with Microwaves. Microwaves are produced inside the oven by an electron tube called a magnetron. The microwaves are reflected within the metal interior
What is mAh the unit of Phone Battery? An ampere hour or amp hour is a unit of electric charge equal to the charge transferred by a current of one ampere
What is Cultured Meat? Cultured meat is meat produced by in vitro cultivation of animal cells, instead of from slaughtered animals. It is a form of cellular agriculture. Cultured meat is produced using many of the same tissue engineering techniques traditionally
What is Anti-Glare Screen? An anti-glare screen is a screen which features a layer of coating that does not reflect light. Displays with anti-glare coating, whether it’s a smartphone, a monitor,
What is Silica Gel? What is Silica used for? Little packets of silica gel are found in all sorts of products because silica gel is a desiccant -- it adsorbs and holds water
What is Bulletproof Jacket made of? Bulletproof vests are modern light armor specifically designed to protect the wearer's vital organs from injury caused by firearm projectiles. To many protective armor manufacturers and
How EnChroma’s Glasses Correct Color-Blindness? Most people have three types of color-sensing cones in their eyes: red, green, and blue. The wavelengths of light that these three cones absorb have overlapping
How does Nitrous Oxide help an Engine perform better? When you heat nitrous oxide to about 570 degrees F (~300 C), it splits into oxygen and nitrogen. So the injection of
How does an Escalator works? The core of an escalator is a pair of chains, looped around two pairs of gears. An electric motor turns the drive gears at the top, which rotate the chain loops.
