YvXNuclaus Mitochondria

Sperm cell with parts labeled rendered by Vanessa Haney. head. Further, there cannot be any abnormalities of the neck, midpiece, or tail and no cytoplasmic droplets of more than half of the size of the sperm head. Given this definition of normal shape, a semen sample is considered to have a normal morphology when at least 12 percent of sperm cells are of normal shape (figure 2.2). Intensified efforts to scientifically comprehend human semen appear to be consistent with the...

The Birds And The Bees

In the world of children's books, humans are placed in a biological continuum with flowers, amphibians, and mammals. Many books precede the discussion of human reproduction with an exploration of nature and hence natural relationships. Other species, such as flowers, birds, bees, and dogs are shown as all fitting together a description used in several books as a way to indicate the predetermined way that beings intuit how to reproduce. How Babies Are Made, published in 1968, shows animals in...

The Essence Of Everyman

With the proliferation of movies and videos that glorify the money shot, the sex entertainment industry provides an avenue for men to be spectators in the celebration of unprocessed, carnal, natural semen. Unlike other industries that manage semen, such as scientific laboratories, fertility clinics, and forensics enterprises, male bodily products do not need to be technologically enhanced or scientifically manipulated to be useful or understood. Unlike the workers in these industries, porn...

The Fertility Factor

In the 20th century, many innovations in sperm research have emerged out of scientists' attempts to understand male infertility. Men exposed to both environmental and occupational toxins have reported consistently higher rates of infertility, yet there is no universal agreement as to its cause.13 There has been much debate in the fields of epidemiology, toxicology, and infertility regarding this increasing rate of men's infertility. As male fertility continues to be compromised by what some...

Fluid Tenacity

Despite ongoing changes regarding the access to and means of human reproduction, sperm and semen maintain definitions of tenacity, strength, and supremacy. Much like the fluid of semen itself can leak onto different fabrics and into different bodies, the meanings of semen are able to seep into our consciousness, transmitting the validity of stereotypically conservative views of men and women. For centuries, scientists and scholars have attempted to define, manipulate, and control semen and...

Polyspermous Semen Is Everywhere

The bombardment of images, news stories, and scientific rhetoric about semen can sometimes seem overwhelming. Semen can be represented as engendered, malleable, agentic, emotive, instructive, sacred, profane, entertaining, controversial, empowering, dirty, clean, normal, abnormal, potent, impotent, powerful, incriminating, anthropomorphic, uniform, polymorphic, and deterministic. Even though semen is diversely, even contradictorily, represented in the preceding list of terms, the meanings of...

Honorable Death Kamikaze Sperm

Beyond the arena of reproductive science, other scientific representations of sperm are being constructed. Particularly salient at this historical moment, given the current crisis in masculinity, is the way sperm competition theory is being used to explain and promote certain ideas about human sexuality, relationships, and reproduction. As with fertility science, the projections of behavior, motive, and character flow freely between sperm cells and the men who produce them. New renderings of...

Risk Of The Other Guys Sperm

Semen Retention Drug

While there may be skepticism about the validity of human sperm competition theories, experimental research takes these theories quite seriously. Presuming that human sperm competition exists, studies have been designed to explore the role of human sperm competition in the context of male anatomy, male psychology and behavior, and human reproduction. One such study hypothesized that the human penis may have evolved as a semen displacement device.54 A research team created artificial anatomical...

Big Semen Stain In Your Underwear

Perhaps some of the fascination with these crime shows is because semen does not just leak during violent crimes. It can also leak during furtive, intimate moments that are secretly shared between consenting adults. The at-home infidelity testing industry has capitalized on a growing market of suspicious partners that want to collect physical evidence of infidelity. Reflecting another aspect of the CSI effect, infidelity tests encourage laypeople to draw definitive conclusions in their...