Veterinary Anatomy Commons^™

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 …

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 …

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 …

Differential Gene Expression In Equine Cartilaginous Tissues And Induced Chondrocytes, Emma N. Adam

Theses and Dissertations--Veterinary Science

Degenerative joint disease, or osteoarthritis, is a major cause of lameness and morbidity in horses, humans, and dogs. There are no truly satisfactory cures for this widespread problem and current treatments all have limitations or unwanted side effects.

New cell-based strategies to repair joint surface lesions have generated a high level of interest, but have yet to achieve the full restoration of articular cartilage structure and function. Currently used therapy cells include autologous chondrocytes and adult mesenchymal cells such as bone marrow derived cells and adipose derived cells. Unfortunately, the resultant repair tissue is biomechanically inferior fibrocartilage. A critical gap …

Evaluation Of Wing Fractures On Survival And Re-Release, Katherine O'Neill

Animal Science

No abstract provided.

Chondrodysplasia-Like Dwarfism In The Miniature Horse, John E. Eberth

Theses and Dissertations--Veterinary Science

Dwarfism is considered one of the most recognized congenital defects of animals and humans and can be hereditary or sporadic in cause and expression. There are two general morphologic categories within this vastly diverse disease. These categories are disproportionate and proportionate dwarfism and within each of these there are numerous phenotypes which have been extensively described in humans, and to a lesser extent in dogs, cattle, mice, chickens, and other domestic species. Ponies and Miniature horses largely differ from full size horses only by their stature. Ponies are often defined as those whose height is not greater than 14.2 hands; …

Observations On Relationships Between Limb Measurements And Mode Of Locomotion In Malaysian Turtles, Duayne Nyckel

Masters Theses

Twelve Genera (spanning three Families) of Malaysian Turtles were studied to determine whether bone lengths could be correlated to mode of locomotion. Ulna, humerus, tibia, femur, coracoid (among others) were measured and results were presented graphically. Five of the genera were observed singly in a large aquarium. Data were recorded on the amount of time each spent in different locomotor modes. Both limb length data and aquarium observations suggest that turtles can be grouped into three main locomotor habits (i.e. terrestrial walking, bottomwalking, and swimming). The terrestrial group includes the genera, Geochelone, Kinixys, and Gopherus. Bottomwalkers include …

The Effects Of Insulin On Hepatic Glucocorticoid Receptor Content In The Diabetic Rat, Jeffrey John Yourick

Masters Theses

The streptozotocin-induced diabetic rat liver was analyzed for glucocorticoid receptor (GCR) content by a saturation and Scatchard analysis. A preliminary study was performed on the stabilization of the cytoplasmic GCR in a frozen cytosol preparation. The addition of 10% glycerol (V/V), 10 mM sodium molybdate, and 0.2 mg/ml trypsin inhibitor resulted in an approximate 20% sparing of GCR content upon freezing.

The hepatic GCR content of diabetic rats was significantly decreased from a control level of 0.1667 ± 0.0142 pmol/mg protein to 0.1094 ± 0.007 pmol/mg protein. Insulin replacement therapy to the diabetic rat dramatically increased the hepatic GCR content. …

The Effects Of Prostaglandin E2 On The Healing Processes Of Rat Perforated Tympanic Membranes, Diane Sue Saylor

Masters Theses

Prostaglandin E₂ (PGE₂) was topically administered to perforated rat tympanic membranes in an attempt to facilitate regrowth of the membranes. Every 24 hours for the first four postperforation days, two groups of tympanic membranes were processed and examined histologically for differences between PGE₂ treated and control animals.

At 24 hours postperforation granulocyte infiltration at the perforation site was greater in the test animals. By 48 hours blood clots were larger in PGE₂ treated animals. Finally, the epithelium was thinner in test animals than in control animals at 96 hours.

Slight tendencies for the test animals …

Time-Related Changes In Rat Androgen Binding Protein Following A Sterilizing Dose Of 3-Chloro-1, 2-Propanediol, Shirley J. Stein

Masters Theses

Androgen binding protein (ABP) is produced by the Sertoli cell, regulated by FSH and androgens, secreted into the testicular fluid, and transported into the caput epididymis where it is thought to play a role in sperm maturation. In this study, the response of ABP to a lesion created chemically by administration of a single, oral 60 mg/kg dose of alpha-chlorohydrin was examined in ninety day old male rats. Total testicular ABP content increased progressively for four days after treatment and there after declined whereas, epididymal ABP concentration decreased immediately. Serum testosterone showed no significant variation from controls, however, serum FSH …

A Study Of Regulation Of Oxidative Metabolism By Substances Present In The Suprapharyngeal Ganglia And Ventral Nerve Cord In Lumbricus Terrestris, Mary Peremuh

Masters Theses

No abstract provided.

The Influence Of Nicotine On The Effect Of Secretin On Gastric Secretion In The Rat And Dog, Donald H. Currie

Masters Theses

No abstract provided.

Seasonal Variation In The Tubular And Interstitial Areas Of The Testes In Sternotherus Odoratus L., Robert Hans Spaet

Masters Theses

Seasonal changes within the tubular and interstitial areas of the testes in Sternotherus odoratus are investigated, histologically and histochemically. Forty specimens were collected in Illinois, Tennessee and Louisiana between May, 1969 and August, 1972.

Many of the histological and macroscopic observations made by Risley (1938) on the spermatogenic cycle of S. odoratus in Michigan are confirmed. Contrary to his findings, fluctuations in interstitial cell nuclear diameters are observed during spermatogenesis. Greatest diameters coincide with what Risley has considered " . . . period of most active breeding." Sertoli cell nuclear diameters undergo similar fluctuations being greatest during spring breeding and …

Daily Patterns Of Oxygen Consumption In Limnodrilus Hoffmeisteri, Thomas Charles Beck

Masters Theses

No abstract provided.

Ovum Transport In Rabbits Injected With Prostaglandin E1 Or F2Α, James Vernon Ellinger

Masters Theses

No abstract provided.

Thyroid And Ldh Activity In Coho Salmon From West Coast And Lake Michigan Regions, Robert A. Drongowski

Masters Theses

No abstract provided.

A Study Of Thoracic Skeletomusculature In Peracarida (Crustacea), Donna R. Gill

Masters Theses

Two species of peracarid malacostracans, a mysid, Neomysis americana, and an oniscid isopod, Trachelipus cf. rathkei, were used to study the skeletomusculature system. Serial sections, whole mounts, and gross dissections were made. Coxal promotors and remotors and basal adductors and abductors were the muscle groups examined.

The promotor and remotor muscles of N. americana were found to be numerous, well developed, taking origin primarily from the dorsal thoracic wall, and extending nearly ventrally to insert in the coxa; the adductor muscle and two abductor muscles are weakly developed. The coxa in T. cf. rathkei is incorporated completely …

Immunological And Reproductive Responses In The Male Rat Following Challenge With Homologous Or Autologous Sperm, James M. Andress

Masters Theses

No abstract provided.

The Comparative Morphology Of The Female Gonads Of Two Members Of The Nematode Order Tylenchida, Owen G. Coker

Masters Theses

No abstract provided.

A Study Of Blood Constituent Levels And The Influence Of Certain Environmental Factors Upon Them In The Wild Mallard Duck, Christopher Louis Schatte

Masters Theses

No abstract provided.

A Study Of The Renal Vascular Supply In The Domestic Cat, Elizabeth Rosen

Bachelors’ Theses

Studies on the normal and abnormal vascularization of the renal vessels in the domestic cat (felis domestica) indicate the frequency of anomalies that occur, but in most of the studies it is the inferior vena cava that is most often recorded. Among the occasional references to several renal veins or arteries we have Huntington and McClure, Elmer Butler, Gaylord Bates, William Darrach, and C.H. Fortune. Yet no study seems to have been made of individuals of any particular class. A superficial observation seems to indicate a large number of cats used in the laboratory had multiple renal veins. Hence a …

A Study Of The Digestive System In The Sparrow (Passer Domesticus), Henry Joseph Wisniewski

Bachelors’ Theses

The digestive tube proper of the Sparrow beings with the Oesophagus. This is a soft tubular organ which serves to convey food rapidly from the pharynx to the stomach. It extends along the median ventral margin of the neck lying dorsal to or to one side of the trachea. Posteriorly, at the base of the neck and shortly in front of the sternum it broadens slightly and gives rise to a dilated region of the oesophagus, namely the Crop, "whose secretion serves to moisten the food or even to initiate digestion." In larger birds as in the pigeon, the crop …

The Spinal Nerves And Spinal Cord Of The Frog, Laverne A. Penn

Bachelors’ Theses

The common grass frog, Rana pipiens as wall as the bull frog, Rana catesbiana have served during many decades as material from which both the student of zoology and the investigator in biological problems have gathered valuable information about the anatomy and physiology of the common systems. Among these systems the central, peripheral, and sympathetic nervous system plays a coordinating role, because of the ramifying nature of its organization. It is the purpose of this thesis to investigate the gross and histological structure of these branches known as spinal nerves. When one inspects the literature on the nervous system of …

The Muscles Of The Forelimb Of Canis Familiaris, Charles G. Wilber

Bachelors’ Theses

In the study of the anatomy of the vertebrates, there has been much work done and a large number of the forms have been studied with great thoroughness. Among the domesticated animals this is particularly true. The students of the veterinary sciences have given us a deep insight into the structure and function of the mammalian body. This is most certainly true in the case of the dog. The species Canis familiaris has been used for many years in the studies of physiology and surgery. However, it is also true that a plenitude of literature relative to the anatomy of …

The Lungs And Respiration In The Frog, Peter P. Strassburg

Bachelors’ Theses

In a wide sense, respiration is sometimes defined as the gaseous exchange constantly taking place between an organism and its environment. Essentially it is concerned with the intake of oxygen and the output of carbon dioxide but it also includes any other gas exchange that might occur. Small organisms take oxygen directly from the air or from the watery medium surrounding them into all parts of their structures. They also give off carbon dioxide from all their parts directly into the surrounding medium. They can do this successfully because they are small enough to have every cell in direct or …

The Anatomy Of The Oyster, M.J. Rohlinger

Bachelors’ Theses

The phylum Mollusca manifests the following characteristics: bilateral symmetry; three primary germ layers; free-living and sessile; marine and fresh-water; a shell modified to form either a bivalve or a univalve which gives an appearance of segmentation due to rings of growth or arrangement of certain parts of the shell as is seen in the class Amphineura, this is only apparent metamerism because the Mollusca are considered to be unsegmented animals; a coelom poorly developed; a foot; a mantle cavity; well developed digestive, circulatory, excretory, and reproductive systems. When one inspects a Chiton, an oyster, a snail, an octopus, or a …