Tag

Anatomy

All articles tagged with #anatomy

Rediscovered: The 'Useless' Female Organ That May Be Key to Fertility
science13 days ago

Rediscovered: The 'Useless' Female Organ That May Be Key to Fertility

A 2024 study by Duke University researchers has challenged the century-old belief that the rete ovarii is a functionless vestige. The structure, first described in 1870 but later removed from medical textbooks, appears to play a crucial role in ovarian function and fertility. Experiments on mice show it secretes proteins that respond to hormonal changes, potentially aiding egg maturation and follicle maintenance. This rediscovery has sparked public debate about historical gaps in female anatomical research.

Revisiting the Rete Ovarii: New Research Challenges Its Status as Vestigial
science-and-health14 days ago

Revisiting the Rete Ovarii: New Research Challenges Its Status as Vestigial

Researchers have challenged the long-held belief that the rete ovarii, a small structure connected to the ovary, is a useless vestigial remnant. New studies suggest it actively communicates with the ovary, responds to hormones, and releases proteins that may regulate ovarian function. While the findings are promising, they are based on mouse models, and it remains unclear if the structure is essential for human fertility. The discovery has sparked broader discussions about historical gaps in female anatomical research.

Rediscovery of the Rete Ovarii Challenges Century-Old Medical Assumptions
science-and-health15 days ago

Rediscovery of the Rete Ovarii Challenges Century-Old Medical Assumptions

A 2024 study by researchers at the University of Michigan has revived interest in the rete ovarii, a small horseshoe-shaped structure in the female reproductive system that was removed from medical textbooks over a century ago because it was deemed functionless. The research, published in eLife, demonstrates that this 'mysterious orphan structure' is not vestigial but actively secretes fluids and interacts with the nervous, circulatory, and immune systems. Findings indicate the rete ovarii contains receptors for estrogen and progesterone and releases proteins involved in egg maturation and follicle maintenance. This rediscovery has sparked social media backlash against historical medical neglect of female anatomy, with critics noting that the male equivalent, the rete testis, remains in standard textbooks.

Post-workout shrinkage explained: understanding why you seem smaller after exercise
health1 month ago

Post-workout shrinkage explained: understanding why you seem smaller after exercise

The article explains that gym penis is real but usually temporary: exercise activates the sympathetic nervous system, causing the muscles around the scrotum to contract and the testicles to retract toward the body, which can make the penis look smaller. A similar effect occurs in cold water; most people return to normal within minutes to an hour as blood flow rebalances. Persisting changes or new symptoms such as lumps, swelling, pain, or erection problems should be checked by a GP per NHS guidance.

Body Worlds founder Gunther von Hagens dies at 81, with plan to plastinate his own body
science2 months ago

Body Worlds founder Gunther von Hagens dies at 81, with plan to plastinate his own body

German anatomist Gunther von Hagens, who invented plastination and created the Body Worlds exhibitions, has died at 81 in Heidelberg after a cerebral hemorrhage; he had Parkinson’s disease since 2008. He had long said he wished to have his body plastinated after death, and his Plastinarium announced that this would be carried out, though the display location was not yet decided. His work popularized preserved-body displays while sparking ongoing ethical debate about consent and spectacle in anatomy.

Mind-Blowing Medical Facts Med Students Still Talk About
health2 months ago

Mind-Blowing Medical Facts Med Students Still Talk About

A BuzzFeed health roundup collects 19 astonishing medical facts that med students say blew their minds, covering everything from direct outside-to-peritoneal pathways and pregnancies occurring with only one ovary and one fallopian tube on opposite sides, to neutrophil extracellular traps (NETs), real-time cerebellar motor plan updates, and bone-marrow transplants as stem-cell reinfusions. The list also highlights the body’s cancer surveillance, amniotic-fluid origins, and other surprising bits of anatomy, physiology, and pharmacology, drawing on sources like StatPearls, PubMed, ASH, and WHO to showcase the awe-inspiring complexity of the human body.

Nineteen Mind-Blowing Human-Body Facts Med Students Couldn't Ignore
health2 months ago

Nineteen Mind-Blowing Human-Body Facts Med Students Couldn't Ignore

Medical students share 19 astonishing facts about the human body, from surprising routes for sperm and rare pregnancy scenarios to immune defenses, real-time motor corrections by the cerebellum, how bone marrow transplants are performed via IV, and broader lessons like pattern recognition in drug action, inflammation as a driver of disease, and the vaccine-driven eradication of smallpox—proof of the body's extraordinary complexity.

The Elephant-Mouse Myth: Not Fear, But Physics and Caution
science3 months ago

The Elephant-Mouse Myth: Not Fear, But Physics and Caution

The enduring belief that elephants fear mice is a myth. Elephants aren’t terrified by small rodents; instead, their cautious behavior comes from poor eyesight and a need to avoid harming small animals, aided by the trunk’s control and an epiglottis that keeps intruders out. The myth traces to ancient Greek fables and has been popularized in media, but observations show elephants move with purpose and restraint, not fear, when encountering mice.

Myth-Busting: Elephants Don’t Fear Mice—They’re Just Cautious
science3 months ago

Myth-Busting: Elephants Don’t Fear Mice—They’re Just Cautious

Elephants aren’t afraid of mice. The popular fear stems from Ancient Greek fables and cartoons, but in reality elephants typically avoid small animals out of caution to avoid harming them, aided by poor eyesight and a trunk that acts with care. Their anatomy, including a protective epiglottis in the trunk, helps prevent small creatures from entering their airways, debunking the myth with biology rather than fear.

Tiny Arms, Mighty Jaws: Why T. rex Shrunk Its Forelimbs
science4 months ago

Tiny Arms, Mighty Jaws: Why T. rex Shrunk Its Forelimbs

A new analysis of 82 theropod species links forelimb shrinkage to the rise of giant sauropods, suggesting evolutionary pressure favored larger jaws for prey while arms became vestigial. In tyrannosaurids, all forelimb elements reduced at similar rates, implying skull strength preceded arm loss and that grasping was no longer essential for predation. The study shows correlation rather than causation, but supports the shift from using arms to rely on jaws for hunting.