Veterinary Anatomy Commons^™

Diagnosis, Treatment, Genetic Basis, And Prevention Of Canine Hip Dysplasia, Nathaniel R. Woody

Senior Honors Theses

Canine Hip Dysplasia (CHD) is a genetic disorder that results in an improper formation of the hip joint. This results in joint laxity, which eats away at the cartilage of the acetabulum. CHD causes arthritis, making normal walking painful for dogs. CHD is the result of many different genes and mutations working together. The best way to prevent CHD in dogs is to selectively breed animals who are not genotypic for the mutation. For dogs that already carry the mutation responsible for CHD the earlier the diagnosis and treatment the better chance they have of a full pain free life …

Morphological And Scanning Electron Microscopy Characterization Of A Spirurid In A Wild Sunda Pangolin (Manis Javanica), Punnarat Vibulchan, Chong Shin Min, Chiharu Okumura, Piyanan Taweethavonsawat

The Thai Journal of Veterinary Medicine

This study identifies and characterizes a spirurid in a wild Sunda pangolin (Manis javanica) using scanning electron microscopy (SEM). Native to Southeast Asia, the Sunda pangolin faces critical threats from poaching, illegal trafficking for its scales and meat, habitat loss, urban conflicts, and disease. Despite this, little is known about the biology of wild Sunda pangolins. In this research, spirurid parasites were recovered from a pangolin fatally injured in a vehicular collision. The parasites were preserved and analyzed with SEM, revealing key morphological features such as papillae, lip-like structures, and an anal opening in females. This study enhances …

Variation In Air Sac Morphology And Postcranial Skeletal Pneumatization Patterns In The African Grey Parrot, Adam B. Lawson, Aracely Martinez, Brandon P. Hedrick, M. Scott Echols, Emma R. Schachner

School of Graduate Studies Faculty Publications

The anatomy of the avian lower respiratory system includes a complex interaction between air-filled pulmonary tissues, pulmonary air sacs, and much of the postcranial skeleton. Hypotheses related to the function and phylogenetic provenance of these respiratory structures have been posed based on extensive interspecific descriptions for an array of taxa. By contrast, intraspecific descriptions of anatomical variation for these features are much more limited, particularly for skeletal pneumatization, and are essential to establish a baseline for evaluating interspecific variation. To address this issue, we collected micro-computed tomography (μCT) scans of live and deceased African grey parrots (Psittacus erithacus) to assess …

Comparison Between Surgical And Non-Surgical Treatments Of Concomitant Cranial Cruciate Ligament Rupture And Medial Patellar Luxation In Small-Breed Dogs, Ekkapol Akaraphutiporn, Chalika Wangdee, Irin Kwananocha

The Thai Journal of Veterinary Medicine

Cranial cruciate ligament rupture (CrCLR) and medial patellar luxation (MPL) are common problems that cause hindlimb dysfunction, lameness and pain in dogs. Although surgical intervention is recommended for these conditions, it may not be suitable for an individual with some underlying diseases. The objective of the present study was to compare the outcomes between surgical and non-surgical treatments for concomitant CrCLR and MPL in small-breed dogs. Seven stifles from five small-breed dogs with concomitant CrCLR and MPL were enrolled and divided into two groups. Four limbs (three dogs) in Group 1 were treated conservatively, and three limbs (two dogs) in …

Morphological And Morphometric Variations Of The Tympanic Bulla Between Domestic Shorthair And Brachycephalic Cats Utilizing Computed Tomography, Naparee Srisowanna, Damri Darawiroj, Nan Choisunirachon, Chutimon Thanaboonnipat, Sirinun Pisamai Tabtieang

The Thai Journal of Veterinary Medicine

Tympanic morphology of the dogs was reported to be varied due to the characteristics of the skull types. The small tympanic bulla is normally seen in brachycephalic dogs. However, this variation in narrowed-skull shaped cats has not been unveiled yet. The objective of this study was to describe the tympanic morphology of cats between brachycephalic and domestic shorthair (DSH) cats. Computer tomography (CT)-skull images of 15 domestic shorthair cats and 11 brachycephalic cats were evaluated for tympanic dimension on transverse and dorsal planes and the tympanic bone thickness. All parameters were compared between both groups. The results revealed that all …

A Preliminary Study Of Tracheal Morphology In Mixed-Breed Dog Cadavers: Anatomical Variation Of Tracheal Cartilaginous Rings, Naparee Srisowanna, Sirin Theerawatanasirikul, Sukumal Prukudom, Niyada Lansubsakul, Montri Pattarapanawan, Maneenooch Khiao-In

The Thai Journal of Veterinary Medicine

Anatomical abnormalities of the trachea leading to respiratory distress. Few reports describe the morphological characterization of the dog’s trachea, particularly in the tracheal cartilaginous rings. In this study, twelve tracheas from mixed-breed dog cadavers were obtained to investigate their features across three anatomical tracheal regions: cervical, thoracic inlet, and intrathoracic trachea. The average length of the trachea was 18.92 ± 0.67 cm. Each trachea contained a different number of tracheal rings, ranging from 32 to 41 rings (37.42 ± 0.81 rings). A significant reduction in both outer transverse diameter (OTD) and outer vertical diameter (OVD) was observed from the cervical …

Quantitative Evaluation Of Different Fixatives For Masson Trichrome Staining In Canine Intestinal Tissue: An Image Analysis-Based Comparative Study, Siriluck Juntausa, Kongkiat Srisuwatanasagul, Kittipot Kongsonthana, Punnarat Vibulchan, Sayamon Srisuwatanasagul

The Thai Journal of Veterinary Medicine

Neutral buffer formalin (NBF) has been widely used as a fixative for histological staining for ages. However, for some special staining, such as Masson trichrome staining, it has been proposed that the suitable fixative was Bouin’s solution. The purpose of the present study was to compare the different fixatives and post-fixative protocols on the quality of Masson trichrome staining. The canine intestines (n = 10), which were the duodenum and colon, were used as the candidate organs since they comprised of various tissue components. The fixatives and staining protocols were divided into four groups, which were Groups 1 and 2; …

Normal Thymus Evaluation Using Radiographs And Computed Tomographic Images In Young And Adult Dogs, Yoenhee Park, Sang-Kwon Lee, Sooyoung Choi, Hojung Choi, Youngwon Lee, Kija Lee

The Thai Journal of Veterinary Medicine

The thymus generally presents as a sail-shaped soft-tissue opacity on thoracic radiographs in young, pre-pubescent dogs. After puberty, lymphatic tissue is replaced by adipose tissue and can usually no longer be identified on radiographs; however, thymic remnants have often been observed in adult dogs. The objective of this retrospective descriptive study was to investigate the incidence of thymic remnants using thoracic radiographs and to analyze the incidence in dogs by age, sex and breed. We analyzed the data from 1,464 dogs that underwent both thoracic ventrodorsal and right lateral radiography, of which 40 underwent both radiography and computed tomography (CT). …

Comparison Of Different Pinning Techniques For 3d-Printed Radius With Salter-Harris Type I Fracture, Tea-Hyung Kim, Hwi-Yool Kim

The Thai Journal of Veterinary Medicine

The purpose of the present study was to compare different pinning techniques for distal radius with Salter-Harris type I fracture. Computed Tomography (CT) images of a distal antebrachium of the 6.5 kg, growing, 6-month-old intact male mongrel dog were 3D-printed with Polycarbonate (PC) material. Twenty-one synthetic bones were classified into three groups. Cross pinning, Parallel pinning, and HK2 pinning techniques were applied to each group. A compressive shear test was applied to each group, and the results at 1 mm, 2 mm, and 3 mm displacement and the load at failure were analyzed through statistical software. It was found that …

Sudden Acquired Retinal Degeneration Syndrome In Canine Patients, Morgan Powell

Honors College Theses

Sudden Acquired Retinal Degeneration Syndrome (SARDS) is a perplexing and debilitating ocular condition that affects canine patients primarily in the form of the sudden onset of total vision loss. Veterinary literature will be reviewed to discuss the basic anatomy of the canine eye and retina, as well as to investigate various diagnostic techniques to evaluate ophthalmic function and hypotheses of the pathogenesis of SARDS. The complexity of this disease and the absence of research leads to veterinarians and clients grappling with unanswered questions. This research surveys veterinarians to gain a perspective of the rareness of the disease, the most frequent …

Anatomical And Histological Features Of The Brain Of Adult Common Carp (Cyprinus Carpio), Sayed Shaban, Galal Youssef, Safwat Ebada, Mahmoud B. Shoeib

Mansoura Veterinary Medical Journal

Background: investigated the anatomical features and histological structures of the brain of adult common carp. In addition, these features were compared with those of other types of fish.

Methods: Adult fish (8- 18 M) were collected, their gross anatomical features were inspected; and small specimens from different brain parts were fixed, sectioned, stained, and histologically examined.

Results: In the common carp, the olfactory bulb was round, somewhat tiny, and connected to the telencephalon by a very long, thin olfactory tract. The hemispheres of the telencephalon were located rostrally. Only one median ventral telencephalic ventricle was visible. The torus longitudinalis and …

Design, Fabrication, And Evaluation Of 3-D-Printed Cystotomy Spoons As A Retrieval Method In Dogs, Davina C. D'Angelo, Sam E. Stephens, Morten O. Jensen, Lauren R. Thomas

Animal Science Faculty Publications and Presentations

OBJECTIVE

Current cystotomy methods often implement the use of off-label devices, resulting in urocystolith extraction difficulty and potentially leading to postoperative complications and discomfort for the patient. The objective of this study was to create 3 novel 3-D printed cystotomy spoons that offer a dedicated solution for removing urocystoliths from a patient's urinary bladder.

ANIMALS

Clinical use of the 3 novel 3-D printed cystotomy spoons were ultimately evaluated in 4 dogs and 1 cat that presented for urocystotlith removal at 3 different veterinary hospitals in northwest Arkansas.

METHODS

The novel cystotomy spoons were designed using SolidWorks, 3-D printed with a …

A Single-Cell Atlas Of Bovine Skeletal Muscle Reveals Mechanisms Regulating Intramuscular Adipogenesis And Fibrogenesis, Leshan Wang, Peidong Gao, Chaoyag Li, Qianglin Liu, Zeyang Yao, Yuxia Li, Xujia Zhang, Jiangwen Sun, Constantine Simintiras, Matthew Welborn, Kenneth Mcmillin, Stephanie Oprescu, Shihuan Kuang, Xing Fu

Computer Science Faculty Publications

Background: Intramuscular fat (IMF) and intramuscular connective tissue (IMC) are often seen in human myopathies and are central to beef quality. The mechanisms regulating their accumulation remain poorly understood. Here, we explored the possibility of using beef cattle as a novel model for mechanistic studies of intramuscular adipogenesis and fibrogenesis.

Methods: Skeletal muscle single-cell RNAseq was performed on three cattle breeds, including Wagyu (high IMF), Brahman (abundant IMC but scarce IMF), and Wagyu/Brahman cross. Sophisticated bioinformatics analyses, including clustering analysis, gene set enrichment analyses, gene regulatory network construction, RNA velocity, pseudotime analysis, and cell-cell communication analysis, were performed to elucidate …

Biomechanical Comparisons Of Metacarpophalangeal Joint Arthrodesis Techniques In The Horse, Lawrence Ivan M. Kadic

LSU Master's Theses

INTRODUCTION - Break down injuries resulting in the disruption of the suspensory apparatus, or the development of moderate to severe osteoarthritis of the metacarpophalangeal (MCP) and/or metatarsophalangeal (MTP) joint, are well documented reasons to perform a surgical arthrodesis in horses. The objective of this thesis was to compare the biomechanical characteristics of different arthrodesis techniques for the equine MCP joint.

MATERIALS AND METHODS - The first cadaveric study evaluated the biomechanical properties of two constructs with 5.5 mm broad 10-hole LCP alone or in combination with a 2.0 mm stainless-steel cable under cyclic fatigue testing and single cycle to failure …

The Morphology And Evolution Of The Primate Brachial Plexus, Brian M. Shearer

Dissertations, Theses, and Capstone Projects

Primate evolutionary history is inexorably linked to the evolution of a broad array of locomotor adaptations that have facilitated the clade’s invasion of new niches. Researchers studying the evolution of primates and of their individual locomotor adaptations have traditionally relied on bony morphology – a practical choice given the virtual non-existence of any other type of tissue in the fossil record. However, this focus downplays the potential importance of the many other structures involved in locomotion, such as muscle, cartilage, and neural tissue, which may each be influenced by separate selective forces because of their different roles in facilitating movement. …

Long-Term Outcome And Complications Of 32 Distal Femoral Osteotomies Performed For Correction Of Mpl In Dogs Without Cranial Cruciate Disease, Nicholas Crawfis

Williams Honors College, Honors Research Projects

Many canines suffer severe, grade I-IV, medial patella luxation causing a persistent lameness, severely reducing the quality of life for the dog (Linney et al 2011). For these patients surgical intervention is recommended to alleviate these symptoms. The procedure used to do so is a distal femoral osteotomy (DFO). This procedure allows for correction of torsion in the femur and quadriceps mechanism, and frontal plane abnormalities at the same time. The present study aims to describe the long-term outcome and related complications of 32 DFOs, without concomitant Cranial Cruciate Ligament rupture (CCLR), in a large private practice referral hospital based …

Rehabilitation Of An Injured Golden Eagle (Aquila Chrysaetos): A Case Study, Fida Muhammad Khan, Fakhar-I- Abbas, Abu Ul Hassan Faiz

Journal of Bioresource Management

Habitat destruction and anthropogenic activities cause wild birds to migrate towards urban areas in search of food and sometimes nesting in high-roof buildings, where they are caught by local people using different techniques and are further used for hunting or recreational purposes. An injured Golden Eagle (Aquila chrysaetos) was found entangled in bushes near the vicinity of Balkasar Research Complex, Chakwal, Pakistan. After complete physical examination, a wound on the right wing and closed leg fracture was diagnosed. The successful treatment was done by anti-parasitic and anti-bacterial drugs with careful monitoring. Splint was adjusted after aligning the fractured …

Absence Of Typical Haversian System From The Compact Bone Of Some Reptile And Bird Species, Yasser Ahmed, Mohamed Abdelsabourv Khalaf, Fatma Khalil

Histology Collection

Background and Objective: Mammalian compact bone is composed mostly of Haversian system. Although there are many studies describing the typical Haversian system in mammals, there are few studies conducted on bones from non-mammalian species. The objective of the current study was to investigate the existence of the typical Haversian system in compact bones from reptiles and birds.

Materials and Methods: Femora were collected from geckos, Nile monitors, sparrows, ducks and geese. Samples were then, fixed in 10% paraformaldehyde and embedded in paraffin. Paraffin sections were stained with hematoxylin and eosin or Von Kossa and then examined using light microscopy.

Results: …

Effects Of 17Β Estradiol In The Metabolism And Morphology Of Bluegill Sunfish (Lepomis Macrochirus), Neeta Parajulee Karki

Masters Theses

Fish natural habitats are increasingly contaminated with various estrogenic compounds, including 17β estradiol (E2). This compound causes adverse effects on the reproductive system of male fish; however, the effects of E2 on other aspects of fish metabolism, morphology and histopathological changes in internal organs are not well known. The objective of this study is to evaluate the effects of E2 exposure on the basal and stressed metabolic rate, morphological changes in body shapes, and histological changes in the liver tissues of sunfish species. Fish were held individually in ten gallon tanks under two treatments of 40 and 80 ng/L and …

Morphological And Biochemical Adaptive Changes Associated With A Short-Period Starvation Of Adult Male Japanese Quail (Coturnix Japonica), Yasser Ahmed, Soha A. Soliman, Mohammed Abdelsabour-Khalaf

Histology Collection

Objective: The morphological and biochemical impact of a short-period of starvation on Japanese quail was investigated.

Materials and Methods: Ten adult male Japanese quail were divided into two groups; control fed and starved. The control-fed group was offered food and water ad libitum and the starved group was subjected to a short-period of food deprivation. After 2.5 days, the serum was obtained and different parameters including the total protein, AST, ALT, triglyceride, HDL, LDL, creatinine and urea were assessed. Gastrointestinal tract, stomach and liver were excised and their masses were estimated. Paraffin and resin embedded sections from the proventriculus, gizzard, …