Positional relationship between the lateral border of Denonvilliers ’ fascia and pelvic plexus
AbstractDenonvilliers ’ fascia is an important landmark of the dissection layer during prostate or rectal surgeries. However, there are few reports on its lateral extension. This anatomical study aimed to define the lateral border of Denonvilliers’ fascia and use it as an anatomical landmark to identify the origin an d distribution of the nerve branches of the pelvic plexus. We investigated the lateral extent and position of the lateral border of Denonvilliers’ fascia through macroscopic examination of 12 pelvic halves from eight cadavers and histological examination of two cadavers. The Denonvilliers’ fasci a exte...
Source: Anatomical Science International - September 16, 2021 Category: Anatomy Source Type: research
Anatomical variations of the aortic arch branching pattern using CT angiography: a proposal for a different morphological classification with clinical relevance
AbstractThe aortic arch (AA) branching pattern variations are usually asymptomatic, but they may lead to complications during cardiovascular procedures. In this retrospective study, we aimed to analyze the frequency of anatomical variations of the AA and to develop a different approach of morphological classification based on radiological criteria. 1026 computed tomography angiography scans of adults were evaluated and the presence of left-sided (LAA) and right-sided (RAA) AA were determined in 1023 (99.71%) and 3 (0.29%) of patients, respectively. According to the number of branches, LAA branching pattern of each patient ...
Source: Anatomical Science International - September 10, 2021 Category: Anatomy Source Type: research
Precise localization of parotid duct: a cadaveric study
This study aimed to determine the precise localization and course of parotid duct based on morphometric data obtained by measurements regarding several superficial landmarks and lines. Totally, 46 parotid ducts of 24 formalin-fixed adult amputated heads (12 female and 12 male) aged between 45 and 92 years, present in the collection of Anatomy Department, School of Medicine, Mersin University, were evaluated. First, three reference lines were defined: L1: between intertragic notch and labial commissure, L2: between intertragic notch and nasal wing, and L3: between intertragic notch and lateral palpebral commissure. The lo...
Source: Anatomical Science International - August 14, 2021 Category: Anatomy Source Type: research
Impact of cisplatin administration on cerebellar cortical structure and locomotor activity of infantile and juvenile albino rats: the role of oxidative stress
In conclusion, CisPt causes oxidative stress-related deleterious effects on structure of developing cerebellar cortex and affects locomotor activity. (Source: Anatomical Science International)
Source: Anatomical Science International - August 13, 2021 Category: Anatomy Source Type: research
Revision of the morphology of longissimus capitis, longissimus atlantis, longissimus cervicis, and the cranial part of longissimus thoracis in the domestic goat (Capra hircus): a cadaveric study
AbstractVeterinary anatomical texts have generally described the longissimus muscle only in terms of its attachment in the ox as the basic species and have not thoroughly addressed its morphology in small ruminants. Hence, the present study was designed to present the anatomical features of longissimus capitis, longissimus atlantis, longissimus cervicis, and the cranial part of longissimus thoracis of domestic goats by comparing them with the existing descriptions of these muscles in the ox. Bilateral dissections of the neck and the cranial thoracic regions of 10 domestic adult goats of both sexes were carried out. The lon...
Source: Anatomical Science International - August 13, 2021 Category: Anatomy Source Type: research
Morphometric characteristics of the sphenoid sinus and potential influencing factors: a retrospective assessment using cone beam computed tomography (CBCT)
In conclusion, the present findings indicate that age, gender and sinus condition have a significant impact on the morphometric characteristics of the SS. Mature sinuses exhibit a post-sellar extension pattern until middle age. In addition, males, and sinuses with hea lthy sinus condition have larger volumes compared to females and pathological sinuses. (Source: Anatomical Science International)
Source: Anatomical Science International - August 9, 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 - August 9, 2021 Category: Anatomy Source Type: research
Anatomical work-up of an individual with multiple muscular variants on both forearms
AbstractMuscular variants of the forearm are common and frequently cause neurovascular compression syndromes, especially when interfering with the compact topography of the carpal tunnel or the Canalis ulnaris. Here, we report on a male body donor with multiple muscular normal variations on both forearms. The two main findings are (1) an accessory variant muscle (AVM) on the right forearm originating from theM. brachioradialis, the distal radius, and theM. flexor pollicis longus. It spanned the wrist beneath theFascia antebrachia and inserted at the proximal phalanx of thedigitus minimus. (2) Moreover, we found a three-hea...
Source: Anatomical Science International - August 9, 2021 Category: Anatomy Source Type: research
Morphologic classification and innervation patterns of the pectineus muscle
This study serves to advance the existing anatomical knowledge about the pectineus muscle, which is of clinical value. (Source: Anatomical Science International)
Source: Anatomical Science International - August 9, 2021 Category: Anatomy Source Type: research
Arterial blood supply patterning of the mammary sentinel lymph nodes with special reference to the relation of the formation mechanism of the superficial subscapular artery
This study aimed to conduct a detailed anatomical examination of the arterial supply to level Ib lymph nodes corresponding to mammary sentinel lymph nodes. This was achieved by focusing on the relationship with course changes of the axillary artery trunk using 41 cadavers (49 axillae). The course patterns of the axillary artery were classified as: “Standard type,” which penetrate the brachial plexus (occurrence rate, 51%); “Superficial brachial artery type,” which ran along the superficial layer of the brachial plexus (2%); “Superficial subscapular artery (SSbsA) type,” which entered the deep layer without pene...
Source: Anatomical Science International - August 9, 2021 Category: Anatomy Source Type: research
Microsurgical anatomy of the cranial nerve-centric triangles of the posterior cranial base: cadaveric and radiological anatomical study
The objectives of this study were to: (1) provide a review of historical anatomically based vascular-centric triangles of the posterior fossa based on respective neurovascular complexes; (2) introduce a more organized alternative system of triangles with the conceptualization of a projection system from superficial to deep; and (3) propose and describe two new triangles of the posterior fossa: Petrous-Acousticofacial and Acousticofacial-Trigeminal. Five cadavers were studied. Neurovascular complexes were described with the use of anatomically guided cranial nerve-centric triangles, each of which was formed by cranial nerve...
Source: Anatomical Science International - August 9, 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 - August 9, 2021 Category: Anatomy Source Type: research
External jugular vein pierced by supraclavicular branches in a neonatal cadaver: a case report
AbstractAnatomical variations in the venous structure and drainage patterns in the neck are not uncommon. However, this is the first known report on the external jugular vein being pierced by supraclavicular branches. In the lateral cervical region of a neonatal cadaver, the supraclavicular branches penetrated the external jugular vein superior to the clavicle, resulting in a circular venous channel formed around the nerve trunk. Variations such as these are important to note in order to minimize possible intra-operative complications sustained during surgical interventions such as venous catherization or nerve grafts. (So...
Source: Anatomical Science International - August 9, 2021 Category: Anatomy Source Type: research
