Articles tagged with Human Anatomy
A study published in PLOS ONE found that baboons produce five distinct vowel-like sounds similar to those used in human speech. The anatomy of the baboon's vocal tract also reveals similarities with the human tongue, indicating a shared mechanism for forming these sounds.
A new study published in Plastic and Reconstructive Surgery found that plastic surgeons and nurses cannot tell the difference between round and shaped breast implants. The results challenge the popularity of anatomically shaped implants, which are more expensive and carry a risk of complications.
Researchers have developed a virtual reality system that generates real-time 3D images from CT data for enhanced visualization. This allows surgeons to interact with detailed models of bones, tissues, and blood vessels, streamlining the surgical planning process.
A study published in Journal of Anatomy found a connection between certain bat species and humans with cleft lip and palate. Researchers used anatomical dissection, micro CT scans, and genomic analysis to identify the genetic causes of clefts.
A recent study on the internal anatomy of a fossil human relative's heel bone reveals greater similarities with gorillas than chimpanzees. The researchers discovered that this fossil, from the StW 352 Australopithecus africanus, exhibited gorilla-like levels of joint mobility and structural reinforcement.
Historical research reveals that foetus and infant cadavers were valued by anatomists for studying growth and development, often kept in museums. Researchers found that anatomists preserved the skulls of infants intact to use as teaching aids, differing from adult cadavers.
A new survey of historical evidence reveals that Henry Gray plagiarized parts of the first edition of his book, Gray's Anatomy. The study examines traits of character that demonstrate Gray's inclination towards garnering credit at others' cost.
The study describes for the first time the developmental processes that differentiate Neanderthal facial skeletons from those of modern humans. The researchers found that Neanderthals' faces grow with extensive deposits by osteoblasts without a compensatory resorption, leading to a prognathic maxilla.
A new review questions whether premature ejaculation is an illness, citing false assumptions and influence from drug companies. The authors suggest that physiology of ejaculation and orgasm remains intact in men with premature ejaculation.
The discovery of Homo naledi reveals a unique combination of anatomy in its hand and foot, indicating adaptation for both tree climbing and walking. The hand shows powerful grasping abilities and use of stone tools, while the foot shares features with modern humans but has more curved toe bones.
A new study reveals that the traditional papal blessing hand gesture was likely caused by an ulnar nerve injury to St. Peter, the first pope, rather than a median nerve injury as previously thought.
Researchers analyzed 430,000-year-old fossils from Spain to determine the human body's evolutionary stages. The study found four main stages of evolution, with the Atapuerca individuals exhibiting a tall, wide, and robust body form, sharing features with Neanderthals.
Kay E. Davies has made significant contributions to understanding Duchenne Muscular Dystrophy, a genetic disorder that causes rapid muscle weakness. Her research has led to the development of dystrophin minigenes and utrophin-based treatments, offering hope for all DMD patients.
The Anatomical Record publishes 26 articles on mummy anatomy in historical and cultural context, exploring diseases and daily life of ancient individuals. The studies utilize advanced knowledge and tools to 'unwrap' the secrets held within mummies.
A new study published in the Journal of Human Evolution suggests that technological innovations in hunting weapons may not have been a driving force behind the colonization of Europe by anatomically modern humans. The researchers found that stone tools used by humans around 40,000 years ago appeared in Europe earlier than previously th...
University of Iowa researchers found that human chins are an evolutionary adaptation, emerging as faces became smaller. The study suggests that mechanical forces like chewing did not create the chin, but rather a geometric change in face shape led to its development.
The American Association of Anatomists has awarded lifetime achievement honors to nine individuals for their scientific, educational, and leadership contributions to the field of anatomy. The award winners include experts who have made significant impacts on human anatomy education, research, and clinical applications.
The cerebral cortex region is crucial for each phase of the sexual pleasure cycle, including wanting, having, and inhibiting sex. Alterations in brain networks are linked to sexual dysfunction, highlighting the importance of brain function in sexual experiences.
A new study led by scientists at the University of York found that the largest fossil rodent, Josephoartigasia monesi, used its incisors for activities other than biting, such as digging and defense. The rodent's powerful bite was estimated to be around 1400 N, but its incisors could withstand almost three times that force.
The discovery of a 55,000-year-old skull in Israel's Western Galilee provides direct anatomical evidence of modern human migration into Europe. The skull also suggests that modern humans interbred with Neanderthals in the Levant, contradicting previous narratives.
A new review critically examines the relationship between genital anatomy, sexual arousal, and brain stimulation to understand women's sexual pleasure. The study aims to stimulate more exacting research into human female sexual functions, particularly regarding procreation and recreation.
New 3D printing technology could reduce the number of heart surgeries in children with congenital heart disease from up to four to one or two. Doctors can now plan and practice procedures on a detailed, beating heart model before surgery.
Researchers at SUNY Downstate Health Science University found that Neanderthal nasal complexes were not adaptively inferior to those of modern humans. The study suggests competition with Homo sapiens led to their extinction, rather than poor adaptation to cold climate.
A recent report in the Journal of Bone and Joint Surgery has highlighted the potential issue of flexible reamer breakage during single-bundle ACL reconstruction. This has prompted a 'Watch' from JBJS to alert orthopaedic surgeons about the problem. The 'Watch' aims to help surgeons avoid similar mishaps by understanding the causes and ...
A recent study published in Anatomical Sciences Education reveals that cadaver-based instruction is more effective than computer simulation in teaching anatomy. Students who learned on cadavers scored up to 16% higher on identification and 11% higher on explanation compared to those who used digital technologies.
A recent review in Clinical Anatomy challenges common female orgasm misconceptions, stating that 'female orgasm' is the correct term. The key to female pleasure lies in effective stimulation of the clitoris, not vaginal intercourse.
Researchers reanalyze Flores bones, finding features indicative of Down syndrome, including cranial asymmetry and short thigh bones. The analysis challenges the original claim of a new 'hobbit' human species, instead suggesting a developmental disorder.
A new 3D printed anatomy kit developed by Monash University's Centre for Human Anatomy Education is set to transform medical education and training. The kit contains detailed body parts produced through 3D printing, allowing for cost-effective and accessible anatomical knowledge.
A recent CU-Boulder study contradicts the widely held notion that Neanderthals were dimwitted and primitive, suggesting they had cognitive abilities comparable to those of anatomically modern humans. The researchers found evidence of complex communication, efficient hunting strategies, and a diverse diet among Neanderthals.
The American Association of Anatomists announced its 2014 award winners, including Jeffrey Laitman for his work in human anatomy education and Drew Noden for his scientific achievements. The winners will receive medals, plaques, and honorariums, as well as opportunities to present lectures at the 2014 Annual Meeting at Experimental Bio...
A team of researchers demonstrates new algorithmic technologies for parametric representation of human shape and form, enabling tracking of soft-tissue deformations in various medical conditions. The software algorithms provide tools for synchronizing structural and functional information across anatomical scales.
Researchers compared two common surgery procedures for vaginal prolapse and stress urinary incontinence. The study found no significant difference in functional or adverse event outcomes between sacrospinous ligament fixation and uterosacral ligament vaginal vault suspension surgeries.
Human remains in museums are being reevaluated due to changing ethical views on body ownership and cultural appropriation. The author argues that curators have an obligation to return bones to their original communities for burial, citing case studies such as Charles Byrne's skeleton.
A 1.4 million-year-old fossil hand bone from East Africa has revealed a modern human-like hand anatomy, bridging the evolutionary gap between humans and their nonhuman primate ancestors. The discovery indicates that early humans possessed dexterous hands capable of precise tool use.
Researchers at KU Leuven discover a previously unknown ligament in the human knee called the anterolateral ligament (ALL), present in 97% of human knees. The ALL ligament is implicated in pivot shift episodes, a common issue for patients with ACL tears.
Researchers at Thomas Jefferson University developed a hologram-like display of a patient's organs using molecular PET/CT images. This approach allows surgeons to plan surgery and visualize tumors in 3D, reducing complications and improving outcomes.
A new study by a University of Missouri scientist has developed 3D computer modeling that complements the study of biological systems for many species. The technology allows for the creation of interactive models that can be shared with other laboratories or used in the classroom, providing an alternative to accessing donor bodies.
Researchers confirm that Oreopithecus had anatomical features incompatible with habitual bipedal walking. The study refutes a long-standing debate about the ape's locomotor behavior, providing new insight into its unique characteristics.
A research team found Radix Achyranthis Bidentatae inhibits advanced glycation end product formation, reducing levels in the frontal cortex and improving learning and memory capabilities in ovariectomized rats. The plant's antioxidative effect may contribute to its neuroprotective properties.
A JAMA study found that surgery for pelvic organ prolapse, specifically abdominal sacrocolpopexy, loses effectiveness over time. Despite initial success, women experience progressive loss of anatomic support and mesh erosion, a complication of the procedure.
A study led by Binghamton University anthropologist Rolf Quam analyzed two species of early human ancestor in South Africa, revealing a human-like malleus that suggests changes in the bone occurred early in human evolution. The findings provide new insight into human origins and may need to be updated to include changes in this bone.
Research finds significant differences in brain anatomy between males, females, and individuals with dyslexia. The study suggests that dyslexia may manifest differently in each sex, affecting language and sensory processing.
Researchers at the University of Notre Dame have developed a method to create three-dimensional anatomical models from CT scans using 3D printing, holding promise for medical professionals and their patients. The technology enables the rapid production of detailed skeletal and soft tissue structures from X-ray CT data.
A newly discovered Y chromosome variation has pushed back the age of the most recent common ancestor for the Y chromosome lineage by almost 70 percent. The findings suggest that the Y chromosome divergence occurred around 300,000 years ago, before the emergence of anatomically modern humans.
A study published in JAMA Network found that women are at a higher risk of hip implant failure compared to men, with a hazard ratio of 1.29 for all-cause revision and 1.32 for aseptic revision.
A team of scientists, led by University of Florida researchers, has generated the most comprehensive tree of life on placental mammals, which includes humans. The study reveals that these mammals diversified after the extinction of dinosaurs 65 million years ago.
Research highlights the unique anatomical differences in the female knee that contribute to higher injury rates. Preseason and ongoing neuromuscular training programs can significantly decrease ACL injury risk among girls and women.
Jonathan Wisco, associate professor at Brigham Young University and UCLA, receives the Basmajian Award for his outstanding contributions to teaching and research in anatomy. He has increased teaching responsibilities and established a laboratory to support translational anatomy research.
Researchers found that Koshik can mimic five Korean words: 'annyong' (hello), 'anja' (sit down), 'aniya' (no), 'nuo' (lie down), and 'choah' (good). The elephant's language skills may provide insights into the biology of complex vocal learning, crucial for human speech and music.
The study of Australopithecus afarensis shoulder blades reveals a partially arboreal lifestyle. The fossils show an apelike shape, indicating the species was adapted for climbing trees in addition to walking on two legs.
Researchers used MRI to scan brains of 885 people and identified 231 biomarkers that capture age differences well, surpassing previous biological measures. The findings suggest a 'developmental clock' in the brain, tightly controlling certain anatomical aspects of development.
A new study analyzing 27 complete human limb bones found in Atapuerca (Burgos, Spain) has estimated the height of various species of the Pleistocene era. The reconstruction suggests that Homo heidelbergensis, like Neanderthals, were similar in height to the current population of the Mediterranean.
A 345-million-year-old eel fossil, Tarrasius problematicus, has been found with a human-like spine, contradicting the long-held assumption that such complex anatomy is exclusive to land-dwelling animals. This discovery sheds light on the evolution of spinal organization in fish species.
Researchers at Max Planck Institute discover von Economo neurons in macaque monkeys, suggesting a primitive form of self-awareness. The finding opens new avenues for studying brain regions involved in human self-awareness and mental disorders like autism.
Researchers at Queen's University have developed TeleHuman, a life-size 3D videoconferencing pod that allows people to interact with each other in a Star Trek-like holodeck environment. The technology uses existing hardware and can be used for interactive 3D anatomy exploration through BodiPod.
A recent study has found that healthy emmetropic women have wider pupil diameters than men. The research analyzed anatomical indexes in a large sample of 379 emmetropic subjects, revealing differences between gender.
A recent study published in The Journal of Sexual Medicine has confirmed the anatomic existence of the G-spot, a previously elusive structure. The G-spot was found to be a well-delineated sac structure located on the dorsal perineal membrane, measuring 8.1mm x 3.6mm x 0.4mm in dimensions.
Researchers discovered genetic material from extinct archaic humans, including Denisovans, contributing to present-day African populations. The study suggests that contemporary Africans contain about 2 percent of archaic DNA, which may hold beneficial genes for human physiology and disease resistance.
A team of researchers led by Michael Hammer found evidence of hybridization between modern humans and archaic forms in Africa. Contemporary African populations contain small proportions of genetic material brought in by an archaic population that split from the ancestors of anatomically modern humans about 700,000 years ago.
Ralph Roskies, PSC's scientific co-director, has been appointed to the National Library of Medicine's Board of Regents for a four-year term. He brings expertise in bioinformatics and high-performance computing to the role.