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Journal of Medical Biography Feb 2024Dr Robert Knox was publicly scorned and disgraced for his unwitting involvement in the Burke and Hare serial murders in 1828. Far less appreciated is his brilliance as...
Dr Robert Knox was publicly scorned and disgraced for his unwitting involvement in the Burke and Hare serial murders in 1828. Far less appreciated is his brilliance as an anatomist and he espoused the European movement in Transcendental Anatomy, which aimed to uncover the laws governing what we now know as evolution and the origin of species. Knox fully embraced Transcendental Anatomy during a sojourn in Paris and taught it on his return to Edinburgh, where there was a critical mass of like-minded Transcendental Anatomists. Charles Darwin spent 1825-1827 as a medical student in Edinburgh when Transcendental Anatomy was at its peak amongst the city's anatomists, and evolution - then known as transmutation - was a source of great interest and controversy. Knox intended to research Transcendental Anatomy, but this was thwarted by conflicting demands on his time in the second half of the 1820s decade and the Burke and Hare tragedy. He did, however, go on to champion Transcendental Anatomy and write extensively on it.
PubMed: 38414391
DOI: 10.1177/09677720231223507 -
Anatomical Sciences Education Feb 2024The intersection of religion and science often elicits polarizing views among scientists, though approximately half of American scientists identify as religious....
The intersection of religion and science often elicits polarizing views among scientists, though approximately half of American scientists identify as religious. Mounting evidence also supports the role of spirituality in comprehensive patient care. The purpose of this study was to explore the religiosity of faculty who teach in the anatomical sciences at U.S. colleges and universities. Surveys were administered to anatomists through two professional societies. Two-thirds (64.9%, 74/114) of respondents identified as religious, 26.3% (30/114) as atheist, and 8.8% (10/114) as agnostic. Most respondents (64.9%, 74/114) disagreed with the statement, "There is no place for religion and science to intersect." Approximately one in three respondents expressed concern that sharing/disclosing their religious beliefs would negatively affect the perceptions of colleagues (32.5%, 37/114) and students (28.9%, 33/114) toward them. Faculty at faith-based institutions were more open to disclosing their beliefs (p = 0.045), and highly religious individuals were more concerned (p = 0.001). Fewer than one-fifth of respondents 17.5% (20/114) personally experienced mistreatment or discrimination within academic settings due to their religious beliefs. Most respondents held politically liberal-leaning views (71.0%, 76/107). Highly religious individuals were more likely to be politically conservative (p < 0.001). Overall, this study demonstrates that the number of anatomists who identify as religious may be higher than that of other biological disciplines and that mistreatment due to religious views remains a challenge for some in the profession. Continued dialogue regarding the role of religion in professional identity expression may be an important step in mitigating religion-focused mistreatment and discrimination in academic settings.
PubMed: 38409570
DOI: 10.1002/ase.2400 -
Anatomical Sciences Education 2024The reconstruction of two-dimensional (2D) slices to three-dimensional (3D) digital anatomical models requires technical skills and software that are becoming... (Review)
Review
The reconstruction of two-dimensional (2D) slices to three-dimensional (3D) digital anatomical models requires technical skills and software that are becoming increasingly important to the modern anatomist, but these skills are rarely taught in undergraduate science classrooms. Furthermore, learning opportunities that allow students to simultaneously explore anatomy in both 2D and 3D space are increasingly valuable. This report describes a novel learning activity that trains students to digitally trace a serially imaged neuron from a confocal stack and to model that neuron in 3D space for 3D printing. By engaging students in the production of a 3D digital model, this learning activity is designed to provide students a novel way to enhance their understanding of the content, including didactic knowledge of neuron morphology, technical research skills in image analysis, and career exploration of neuroanatomy research. Moreover, students engage with microanatomy in a way that starts in 2D but results in a 3D object they can see, touch, and keep. This discursive article presents the learning activity, including videos, instructional guides, and learning objectives designed to engage students on all six levels of Bloom's Taxonomy. Furthermore, this work is a proof of principle modeling workflow that is approachable, inexpensive, achievable, and adaptable to cell types in other organ systems. This work is designed to motivate the expansion of 3D printing technology into microanatomy and neuroanatomy education.
Topics: Humans; Anatomy; Students, Medical; Imaging, Three-Dimensional; Printing, Three-Dimensional; Models, Anatomic; Neurons
PubMed: 38379173
DOI: 10.1002/ase.2396 -
Anatomical Sciences Education 2024There is a drive to implement inclusive practices in anatomy by adapting curricula and utilizing inclusive language and resources that negate biases. However, to date...
There is a drive to implement inclusive practices in anatomy by adapting curricula and utilizing inclusive language and resources that negate biases. However, to date there is no data regarding student's perception of inclusivity. Therefore, the study aims to investigate anatomy student's opinions on inclusive practices in anatomy education based on the protected characteristics of age, disability, ethnicity, gender affirmation and sex. One hundred and forty-five students completed a questionnaire with 21 Likert-scale and two open-ended questions. Kruskal-Wallis tests compared responses by groups defined by the protected characteristics of the Equality Act (2010). Most students (71.2%; n = 84) agreed or strongly agreed that "improving inclusivity in anatomy education should be educator's priority". In terms of representation, there was a statistically different response rate from students from different ethnic backgrounds to the statements "there are anatomy educators" (p < 0.001), "images in textbooks" (p < 0.001) and "models in the dissection room" (p < 0.001) "that look like me". Most students agreed or strongly agreed to statements relating to the protected characteristics of age (70.4%; n = 68), disability (78.6%; n = 77), ethnicity (59.8%; n = 64), gender affirmation (46.3%; n = 46) and sex (51.5%; n = 62). Themes identified relating to improving inclusivity included "reflecting reality", "teaching the truth", "the invisibility of women" and the "learning environment". Students have confirmed that anatomists, as gatekeepers of the knowledge of the human body, should foster inclusive teaching practices that will benefit all students and potentially future patient care.
Topics: Humans; Female; Anatomy; Students, Medical; Curriculum; Dissection; Learning
PubMed: 38372435
DOI: 10.1002/ase.2388 -
Clinical Hemorheology and... 2024This review spans a wide arc from the first observations of the early anatomists to the present day. William Harvey was the first to describe the heart as the centre... (Review)
Review
This review spans a wide arc from the first observations of the early anatomists to the present day. William Harvey was the first to describe the heart as the centre of the large and small circulatory system. He thus replaced the previously valid system of Galenos, It was Marcello Malpighi who first described that the capillary system connects the arteries with the veins. In 1688 Antoni van Leeuwenhoek (1632-1686) confirmed these results with a paper on capillary perfusion in the caudal fin of the glass eel. It was then Hermann Boerhave (1668-1738, Leiden) who was the first to carry out microcirculation tests on patients. He studied the microcirculation in the human bulbar conjunctiva. Even today, microcirculation studies in the conjunctiva bulbi of patients are carried out today. Until 1831, it was never quite clear whether the observations reported belonged mainly to the field of microcirculation, which had not yet been defined. This was done in Great Britain by Marshall Hall (1790-1857). Technical Improvements allowed increasingly sophisticated studies of the morphological structure of the terminal vasculature. According to Gustav Ricker (1870-1948, Vienna), the terminal vasculature comprises the functional unit of the smallest arteries, arterioles, capillaries and venules. In 1921 it was still thought that the blood circulation was the sole response to the pumping action of the heart. Even the classic work by Bayliss on the myogenic hypothesis (later referred to as "blood flow autoregulation") initially received little attention. More strikingly, even the findings of August Krogh, for which he received the Nobel Prize in Medicine in 1920 (for his discovery of the mechanisms of capillary motor regulation), were ignored. During an outstanding autoregulation symposium held in 1963 a broad consensus was reached on active and passive mechanisms, which is more or less valid till today. The mechanisms of regulation of capillary blood flow are now largely understood, although not completely resolved. The development of video systems with recording capability and automated off-line recording of capillary erythrocyte velocities allowed the application of morphological and dynamic studies of cutaneous capillaries in humans. These reopened the field of physiological or pathophysiological questions again for many groups worldwide. Since 1955, many publications on "microcirculation (5423)" and "capillary microscopy (2195)" have been listed in pubmed.
Topics: Humans; Capillaries; Erythrocytes; Microcirculation
PubMed: 38363606
DOI: 10.3233/CH-248001 -
Handchirurgie, Mikrochirurgie,... Feb 2024A supracondylar process is a bony spur on the distal anteromedial surface of the humerus, and it is considered an anatomical variant with a prevalence of 0.4-2.7%...
INTRODUCTION
A supracondylar process is a bony spur on the distal anteromedial surface of the humerus, and it is considered an anatomical variant with a prevalence of 0.4-2.7% according to anatomical studies. In almost all cases, it is associated with a fibrous, sometimes ossified ligament, which extends from the supracondylar process to the medial epicondyle. This ligament is known in the literature as the ligament of Struthers, named after the Scottish anatomist who first described it in detail in 1854. In rare cases, the supracondylar process can be a clinically relevant finding as a cause of nerve compression syndrome. The median and ulnar nerve can be trapped by the ring-shaped structure formed by the ligament of Struthers and the supracondylar process.
CASE REPORT
A 59-year-old patient with symptoms of a cubital tunnel syndrome and additional ipsilateral sensory deficits in his thumb was referred to our clinic. Electroneurography showed no signs of an additional carpal tunnel syndrome. Preoperative x-ray and CT scans of the upper arm revealed a supracondylar process, which led us to suspect an associated entrapment of the median nerve. An MRI scan of the upper arm showed a ligament of Struthers and signs of a related median nerve compression as we initially assumed. We performed a surgical decompression of the median nerve in the distal upper arm and of the ulnar nerve in the cubital tunnel. Intraoperatively, there was evidence of compression of the median nerve due to the supracondylar process and the ligament of Struthers. The latter was cleaved and then resected along with the supracondylar process. Three months after surgery, the patient had no motor or sensory deficits.
SUMMARY
The ring-shaped structure formed by the supracondylar process and ligament of Struthers represents a rare cause of compression syndrome of the median and ulnar nerve. Its incidence remains unknown so far. This anatomical variant should be considered a differential diagnosis in case of possibly related nerve entrapment symptoms after ruling out other, more frequent nerve compression causes. Moreover, the supracondylar process should be completely resected including the periosteum during surgery to minimise the risk of recurrence.
Topics: Humans; Middle Aged; Median Nerve; Ligaments; Humerus; Arm; Ulnar Nerve; Carpal Tunnel Syndrome; Nerve Compression Syndromes
PubMed: 38359863
DOI: 10.1055/a-2234-4636 -
Animals : An Open Access Journal From... Jan 2024has unique anatomical characteristics, and many of its vascular and digestive tract aspects have yet to be clearly understood. This lack of information makes clinical...
has unique anatomical characteristics, and many of its vascular and digestive tract aspects have yet to be clearly understood. This lack of information makes clinical diagnoses and surgical procedures difficult. The aim of this study was to evaluate the anatomical aspects of frozen and glycerinated corpses of using computed tomography (CT), emphasizing vascular and digestive contrast studies. Nine corpses that died during routine hospital were examined via CT in the supine position with scanning in the craniocaudal direction. In frozen cadavers, the contrast was injected into a cephalic vein after thawing and, subsequently, was administered orally. In addition to bone structures, CT allowed the identification of organs, soft tissues, and vascular structures in specimens. Visualization of soft tissues was better after contrast been administered intravenously and orally, even without active vascularization. Furthermore, the surfaces of the organs were highlighted by the glycerination method. With this technique, it was possible to describe part of the vascularization of the brachial, cervical, thoracic, and abdominal regions, in addition to highlighting the esophagus and part of the stomach. CT can be another tool for the evaluation of cadavers by anatomists or pathologists, contributing to the identification of anatomical structures.
PubMed: 38337999
DOI: 10.3390/ani14030355 -
Morphologie : Bulletin de L'Association... Jun 2024Tensor fasciae suralis (TFS) is an accessory muscle of the posterior lower extremity. Although TFS has been documented in cadaveric and radiological reports, its... (Review)
Review
Tensor fasciae suralis (TFS) is an accessory muscle of the posterior lower extremity. Although TFS has been documented in cadaveric and radiological reports, its prevalence remains unknown. The TFS variant is noteworthy to anatomists, as it may be encountered in the dissection laboratory, and clinicians, as the muscle could potentially cause confusion during physical examination or diagnostic imaging. Multiple variations of TFS have been reported in the literature, suggesting the need for a classification system. We dissected 236 formalin-fixed cadaveric lower limbs to determine the prevalence of TFS. The PubMed and MEDLINE databases were searched to compare the anatomical features of independent TFS case reports. In our prevalence study, the TFS muscle was identified in three lower limbs (1.3%). In total, 38 cases of TFS (32 cadaveric and six radiological) were identified in the literature. Our literature review revealed that the accessory muscle most often arises as a single head from the long head of the biceps femoris, yet many other presentations have been documented. The need for a classification system to distinguish between the subtypes of TFS became apparent during the literature review. Tensor fasciae suralis is a rare muscle, present in only 3 of 236 (1.3%) cadaveric lower limbs dissected in this study. We propose the use of a classification system, based on muscle origin and number of heads, to better organize the subtypes of TFS.
Topics: Humans; Cadaver; Male; Female; Prevalence; Muscle, Skeletal; Aged; Anatomic Variation; Lower Extremity; Aged, 80 and over; Middle Aged
PubMed: 38325018
DOI: 10.1016/j.morpho.2024.100762