Variation of pectineus muscle forming a hiatus
AbstractKnowledge of the anatomic variations in the pectineus muscle is important for vascular surgeons to minimize complications following surgical approach to the distal part of the deep femoral artery. During routine dissection of the thigh, variations in the bilateral pectineus muscles were identified in an 82-year-old male cadaver. On both sides, the superficial and deep layers of the pectineus were divided at its distal part, forming a triangular-shaped hiatus between them and the femur shaft. Distally, the tendon of the superficial part intermingled with the tendon of the adductor longus. The tendon of the deep part...
Source: Anatomical Science International - June 1, 2021 Category: Anatomy Source Type: research
Stereoscopic three-dimensional anatomy of the heart: another legacy of Dr. Wallace A. McAlpine
(Source: Anatomical Science International)
Source: Anatomical Science International - June 1, 2021 Category: Anatomy Source Type: research
Temporalis muscle vasculature directly derived of the middle meningeal artery: a case report and review
We present a case of temporalis muscle and skull base dissection of a seventy-year-old fresh female cadaver with single temporal muscle vessels directly derived of the middle meningeal artery throughout the calvaria, therefore jeopardizing the harvest of the flap, which has never been described to our knowledge. Such a variation must be known of the reconstructive surgeon to plan the ideal reconstruction procedure. (Source: Anatomical Science International)
Source: Anatomical Science International - June 1, 2021 Category: Anatomy Source Type: research
High prevalence of sternal foramina in indigenous Bolivians compared to Midwest Americans and indigenous North Americans (sternal foramina in indigenous Bolivians)
This study reports the prevalence of a sternal foramen in two South Amerindian populations compared with other published populations. We evaluated the presence of sternal foramina using thoracic computed tomography scans of 1334 (48% female) participants from two indigenous populations of Bolivia (n = 900 Tsimane, 434 Moseten). The prevalence of sternal foramina was compared to two U.S. populations of similar sex/age distribution (n = 572 Midwest Americans, 131 self-identified Native North Americans) via similar CT scans. A sternal foramen was significantly more common in the two Bolivian populations (prevalence ra...
Source: Anatomical Science International - May 30, 2021 Category: Anatomy Source Type: research
Correction to: Anatomical variation in the form of inter ‑ and intra‑individual laterality of the calcaneofibular ligament
A correction to this paper has been published: https://doi.org/10.1007/s12565-021-00617-8 (Source: Anatomical Science International)
Source: Anatomical Science International - May 27, 2021 Category: Anatomy Source Type: research
Morphological analysis of cementoenamel junction in premolars of Sri Lankans
AbstractCementoenamel junction is an anatomical landmark which indicates the meeting point of enamel of the crown and the cementum of the root. It is an important reference point in clinical dentistry as well as in dental radiography. The present study is done to describe the distribution of the mineralized tissue at the cementoenamel junction in relation to various surfaces of the premolars. The study sample consisted of 89 permanent maxillary and mandibular premolars from both males and females extracted for orthodontic reasons. They were stained with carbol fuchsin and observed under a dissecting microscope to identify ...
Source: Anatomical Science International - April 5, 2021 Category: Anatomy Source Type: research
Stereoscopic three-dimensional anatomy of the heart: another legacy of Dr. Wallace A. McAlpine
(Source: Anatomical Science International)
Source: Anatomical Science International - March 19, 2021 Category: Anatomy Source Type: research
A new interpretation of the human embryo drawings in Icones Embryonum Humanorum by Samuel Thomas Soemmerring
AbstractIn 1799, Samuel Thomas Soemmerring published the bookIcones Embryonum Humanorum, which was one of the first attempts in history to sort out prenatal human development chronologically. Despite its importance for the anatomical sciences, there is little information aboutIcones. In this context, our objective was to identify and estimate the developmental age of the seven human embryos present inIcones Embryonum Humanorum by external morphological analysis and morphometry of the drawings using Image-J® software. First, the book was translated from Latin. Then, the developmental age was estimated by external morpholog...
Source: Anatomical Science International - March 9, 2021 Category: Anatomy Source Type: research
Histomorphometric analysis of the epithelial lumen, mesenchyme, smooth muscle cell layers, and mesentery of the mouse developing duodenum in relation with the macroscopic morphogenesis
We examined the angle of the axis of the epithelial lumen, which was oval at E13.5 against the mesentery, along with th e epithelial cell nuclear shape, the adjacent mesenchymal cell density in relation to the epithelial lumen axis, and the development of SMC layers. The luminal axis of the oval epithelial lumen at E13.5 rotated clockwise against the mesentery in the proximal duodenum. The shape of epithelial nuclei was longer and thinner at the long axis but shorter and broader at the short axis, whereas mesenchymal density was significantly lower in the area on the luminal long axis than that on the short axis. The numbe...
Source: Anatomical Science International - February 25, 2021 Category: Anatomy Source Type: research
A rare case of thoracic renal artery
AbstractIdentifying of variations of renal vascular anatomy is important for radical surgery, endovascular intervention, and renal transplantation. While there are common normal variations of renal vascular anatomy, such as accessory renal arteries, a main renal artery that originates from the thoracic aorta (thoracic renal artery) is remarkably rare. The majority of reported cases of thoracic renal artery were right side, except two cases reported on 1980 and 2016. The author reports a rare case of left renal artery originating from the thoracic aorta. (Source: Anatomical Science International)
Source: Anatomical Science International - February 24, 2021 Category: Anatomy Source Type: research
Possible involvement of fatty acid binding proteins in psychiatric disorders
AbstractPolyunsaturated fatty acids (PUFAs) are essential for brain development and function. Increasing evidence has shown that an imbalance of PUFAs is associated with various human psychiatric disorders, including autism and schizophrenia. However, the mechanisms underlying the effects of PUFAs on brain functions at cellular and molecular levels remain unclear. Since PUFAs are insoluble in water, specific transporters are required to deliver PUFAs to appropriate intracellular compartments. Fatty acid-binding proteins (FABPs), the cellular chaperones of PUFAs, are involved in PUFA intracellular trafficking, signal transd...
Source: Anatomical Science International - February 18, 2021 Category: Anatomy Source Type: research
The development of the medial longitudinal arch in the intrauterine period
In this study, we aimed to reveal whether the medial longitudinal arch is formed in the intrauterine period and the structural features of the medial longitudinal arch. The study was conducted on 146 feet of 73 fetuses (38 male, 35 female) aged between 15 and 40 weeks of gestation. The fetuses were grouped by trimesters. The footprints taken were photographed with a millimeter ruler, and the development of the medial longitudinal arch was examined on footprints based on the Clarke index, Chipaux-Smirak index, and Staheli index. In Clarke index and Staheli index, it was observed that the arch height was normalized in the ...
Source: Anatomical Science International - February 14, 2021 Category: Anatomy Source Type: research
Temporalis muscle vasculature directly derived of the middle meningeal artery: a case report and review
We present a case of temporalis muscle and skull base dissection of a seventy-year-old fresh female cadaver with single temporal muscle vessels directly derived of the middle meningeal artery throughout the calvaria, therefore jeopardizing the harvest of the flap, which has never been described to our knowledge. Such a variation must be known of the reconstructive surgeon to plan the ideal reconstruction procedure. (Source: Anatomical Science International)
Source: Anatomical Science International - February 12, 2021 Category: Anatomy Source Type: research
Detailed gross anatomic and sialographic characteristics of major salivary glands in water buffaloes ( Bubalus bubalis )
AbstractTo clarify the detailed general architecture and topography of major salivary glands and demonstrate a fine anatomy of the ductal system of the glands in water buffaloes, we conducted gross anatomic and sialographic investigations of glands in 14 half heads from seven water buffaloes. The position of the mandibular gland, course of mandibular duct relative to monostomatic gland, a rostral extension of polystomatic gland, and site of origin of monostomatic duct in buffaloes essentially differed from those of various ruminants. The shape of the parotid and mandibular glands, and origin of their ducts, lacking filling...
Source: Anatomical Science International - February 8, 2021 Category: Anatomy Source Type: research
The ulnar nerve is surrounded by the tendon expansion of the flexor carpi ulnaris muscle at the wrist: an anatomical study of Guyon ’s canal
AbstractThe ulnar tunnel (Guyon ’s canal) is an osseofibrous tunnel for the ulnar nerve and artery. With regard to the proximal palmar wall (palmar carpal ligament) of the ulnar tunnel, detailed anatomical data such as attachment sites, fibrous continuity to surroundings, and variations have not been clearly described. In this s tudy, topology of Guyon’s canal was examined, especially to the palmar side of the ulnar nerve, focusing on the continuity of tendinous structures to reveal a more detailed constitution of Guyon’s canal. The palmar wall of Guyon’s canal was investigated in 113 forearms of 57 cadavers. The d...
Source: Anatomical Science International - February 6, 2021 Category: Anatomy Source Type: research
