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Anatomical Science International Oct 2023Since its inception, the International Anatomical Terminology has been an indispensable and widely embraced resource for authors, anatomists, researchers, and medical... (Review)
Review
Since its inception, the International Anatomical Terminology has been an indispensable and widely embraced resource for authors, anatomists, researchers, and medical professionals, ensuring standardized anatomical terminology across various disciplines. Nonetheless, it is widely acknowledged that periodic updates and enhancements are necessary to incorporate the latest scientific knowledge and advancements in imaging techniques. The current version of Terminologia Anatomica includes a section dedicated to the paranasal sinuses, encompassing ethmoidal cells and three sinuses: frontal, sphenoidal, and maxillary. However, the anatomical lexicon pertaining to the paranasal sinuses is more extensive. In clinical practice, multiple terms related to clinically significant structures are commonly employed. This article focuses on the clinical terminology associated with the paranasal sinuses, proposing significant extensions to the existing Terminologia Anatomica. These extensions aim to enrich the anatomical nomenclature and facilitate a harmonious convergence between the language of clinicians and the anatomical lexicon. Further endeavors should bridge the gap in anatomical nomenclature and improve communication between anatomists, researchers, and clinicians, thereby enhancing diagnostic accuracy and improving interdisciplinary research collaboration.
PubMed: 37807010
DOI: 10.1007/s12565-023-00745-3 -
Advances in Physiology Education Sep 2023In the field of anatomy education, the debate over the superiority of learning with or without human donors is decades long and ongoing. Arguments for or against the use... (Review)
Review
In the field of anatomy education, the debate over the superiority of learning with or without human donors is decades long and ongoing. Arguments for or against the use of human donors in anatomy education vary, depending on the healthcare discipline. Physical therapy programs have been particularly resistant to the trend away from the use of human donors. In this personal view, I present my history of anatomy education and how my perspectives on teaching and learning anatomy have changed dramatically throughout my teaching experiences. The purpose of this article is to support instructors who are creating anatomy courses for all healthcare trainees without donors, inspire those teaching with donors to incorporate other methods of instruction and evaluation, challenge educators to examine their own biases surrounding anatomy education, and provide recommendations for developing an anatomy course without human donors. Included in this article is the perspective of a practicing physical therapist who learned through human dissection and has assisted me in the development and management of the human anatomy course in our physical therapy curriculum. This article provides an overview of how to design an anatomy course without anatomical donors for doctor of physical therapy students and includes recommendations for instructors who need to reduce or eliminate anatomical donors from their anatomy curriculum.
Topics: Humans; Anatomists; Anatomy; Cadaver; Curriculum; Dissection; Education, Medical, Undergraduate; Educational Status; Learning; Students, Medical; Teaching
PubMed: 37141435
DOI: 10.1152/advan.00004.2023 -
Anatomical Science International Mar 2024Unfortunately, the long-awaited revision of the official anatomical nomenclature, the Terminologia Anatomica 2 (TA2), which was issued in 2019 and after a referendum...
Unfortunately, the long-awaited revision of the official anatomical nomenclature, the Terminologia Anatomica 2 (TA2), which was issued in 2019 and after a referendum among the Member Societies officially approved by the General Assembly of the International Federation of Associations of Anatomists in 2020, is built on a new version of the Regular Anatomical Terminology (RAT) rules. This breaks with many traditional views of terminology. These changes in the Terminologia Anatomica of 1998 (TA98) met great resistance within many European Anatomical Societies and their members are not willing to use terms following the RAT rules. European anatomy teachers and scientists using traditional Latin in their teaching, textbooks and atlases will keep using the TA98. The German Anatomical Society (Anatomische Gesellschaft) recently announced the usage of the TA2023AG in curricular anatomical media such as textbooks and atlases, based on the TA98 and the Terminologia Neuroanatomica (TNA). We are preparing a more extensive improvement of the TA98, called Terminologia Anatomica Humana (TAH). This project is fully based on the noncontroversial terms of TA98, incorporating the recent digital version (2022) of the TNA from 2017. Further, it is completed with many new terms, including those in TA2, along with their definitions and relevant references, clinical terms, and correcting inconsistencies in the TA98. The TAH is still in process, but many chapters are already freely available at the IFAA Website in Fribourg ( https://ifaa.unifr.ch ) as is the digital version of the TNA.
PubMed: 38492195
DOI: 10.1007/s12565-024-00759-5 -
The Journal of Comparative Neurology Dec 2023Anatomists have long expressed interest in neurons of the white matter, which is by definition supposed to be free of neurons. Hypotheses regarding their biochemical...
Anatomists have long expressed interest in neurons of the white matter, which is by definition supposed to be free of neurons. Hypotheses regarding their biochemical signature and physiological function are mainly derived from animal models. Here, we investigated 15 whole-brain human postmortem specimens, including cognitively normal cases and those with pathologic Alzheimer's disease (AD). Quantitative and qualitative methods were used to investigate differences in neuronal size and density, and the relationship between neuronal processes and vasculature. Double staining was used to evaluate colocalization of neurochemicals. Two topographically distinct populations of neurons emerged: one appearing to arise from developmental subplate neurons and the other embedded within deep, subcortical white matter. Both populations appeared to be neurochemically heterogeneous, showing positive reactivity to acetylcholinesterase (AChE) [but not choline acetyltransferase (ChAT)], neuronal nuclei (NeuN), nicotinamide adenine dinucleotide phosphate-diaphorase (NADPH-d), microtubule-associated protein 2 (MAP-2), somatostatin (SOM), nonphosphorylated neurofilament protein (SMI-32), and calcium-binding proteins calbindin-D (CB), calretinin (CRT), and parvalbumin (PV). PV was more richly expressed in superficial as opposed to deep white matter neurons (WMNs); subplate neurons were also significantly larger than their deeper counterparts. NADPH-d, a surrogate for nitric oxide synthase, allowed for the striking morphological visualization of subcortical WMNs. NADPH-d-positive subcortical neurons tended to embrace the outer walls of microvessels, suggesting a functional role in vasodilation. The presence of AChE positivity in these neurons, but not ChAT, suggests that they are cholinoceptive but noncholinergic. WMNs were also significantly smaller in AD compared to control cases. These observations provide a landscape for future systematic investigations.
Topics: Animals; Humans; White Matter; Acetylcholinesterase; NADP; Calbindins; Neurons; Calbindin 2; NADPH Dehydrogenase; Alzheimer Disease; S100 Calcium Binding Protein G
PubMed: 37376715
DOI: 10.1002/cne.25512 -
International Journal of Surgery Case... Oct 2023The first clinical presentation of a hernia developing along the Spigelian line had been reported by Klinkosch. The Belgian anatomist Adriaan van der Spieghel (Adrianus...
INTRODUCTION & IMPORTANCE
The first clinical presentation of a hernia developing along the Spigelian line had been reported by Klinkosch. The Belgian anatomist Adriaan van der Spieghel (Adrianus Spigelius) was the first to describe the semilunar line now known as the linea Spigeli in 1645. Spigelian hernias are rare and account for 1 % to 2 % of all abdominal wall hernias. Most of these hernia occurs in the lower abdomen where posterior sheath is deficient. The hernia ring is well defined defect in the transverse aponeurosis.
CASE PRESENTATION
A 60 year old female, presented with a palpable lump at the right lower quadrant of the abdomen since 7 month before her presentation.
CLINICAL DISCUSSION
For the first time the swelling is small and painless then gradually increase in size and associated with dull aching pain. The swelling was reducible with a defect of size 4 × 4 cm palpable in right iliac fossa. There was a positive cough impulse. The swelling was non tender. Other hernial orifices were normal. No inguinal lymphadenopathy noted. Abdominal ultrasonography done revealed a defect in abdominal wall in right iliac fossa with reducible bowel content. Depending on basis of clinical and investigations, a diagnosis of Spigelian hernia was made. After preparation for surgery, exploration done. The defect measuring 4 cm in length was identified and anatomical repair was done with nylon- 0, by suturing medial border of internal oblique and transverse abdominus muscle to the lateral border of rectum abdominal wall followed by hernioplasty by mesh.
CONCLUSION
Spigelian hernias are rare multifactorial disorder leading to defect in the transversus abdominis muscle in anterior abdominal wall. Spigelian hernias carry a significant risk of incarceration and strangulation of sac content. The management of spigelian hernias is almost always surgical which can be done in a traditional open fashion or laparoscopically.
PubMed: 37757738
DOI: 10.1016/j.ijscr.2023.108785 -
Plastic and Reconstructive Surgery May 2024The exact anatomical entity behind the term superficial musculoaponeurotic system (SMAS) remains poorly understood. The different interpretations of the term SMAS by... (Review)
Review
BACKGROUND
The exact anatomical entity behind the term superficial musculoaponeurotic system (SMAS) remains poorly understood. The different interpretations of the term SMAS by anatomists, surgeons, and histologists have caused confusion. This article aims to provide clarity regarding this term and the relevant anatomy.
METHODS
A literature review was conducted to uncover the variety of descriptions of the term SMAS. A feasibility study, followed by a conclusive series of standardized layered dissections complemented by histologic analysis and sheet plastination, was performed on 50 cadaver heads (16 embalmed and 34 fresh; mean age, 75 years).
RESULTS
Most literature considers the SMAS as layer 3, that is, a musculoaponeurotic layer that separates the subcutaneous fat of the superficial fascia from the deep fat of the deep fascia. The authors' dissections, histologic analysis, and sheet plastination demonstrated that layer 3 is present only where there are flat mimetic muscles and platysma-auricular fascia over the posterior part of the parotid gland as the evolutionary remnant of the platysma, but not between the flat mimetic muscles. Here, the subcutaneous fat is in direct contact with the deep fat without the interposition of a musculoaponeurotic layer 3.
CONCLUSIONS
Because of the absence of a distinct and complete layer 3 connecting the flat mimetic muscles, the authors conclude that the SMAS as originally described does not exist as a specific anatomical entity. In retrospect, the surgically created compound layered flap composed of a variable thickness of subcutaneous fat, mimetic muscles (eg, platysma, orbicularis oculi), and a thin layer of deep fascia is what is known as the "SMAS."
Topics: Humans; Superficial Musculoaponeurotic System; Cadaver; Aged; Female; Male; Subcutaneous Fat; Dissection; Feasibility Studies; Aged, 80 and over; Fascia
PubMed: 37039509
DOI: 10.1097/PRS.0000000000010557