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2 edition of Vascular and extravascular fluid volumes in the Pacific hagfish, Eptatretus stoutii (Lockington) found in the catalog.

Vascular and extravascular fluid volumes in the Pacific hagfish, Eptatretus stoutii (Lockington)

Joseph Edward McCarthy

Vascular and extravascular fluid volumes in the Pacific hagfish, Eptatretus stoutii (Lockington)

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  • 29 Currently reading

Published .
Written in English

  • Pacific hagfish.

  • Edition Notes

    Statementby Joseph Edward McCarthy.
    The Physical Object
    Pagination[7], 49 leaves, bound :
    Number of Pages49
    ID Numbers
    Open LibraryOL14254628M

    Hydrocephalus ex vacuo, also known as compensatory enlargement of the CSF spaces, is a term used to describe the increase in the volume of CSF, characterized on images as an enlargement of cerebral ventricles and subarachnoid spaces, caused by encephalic volume loss. The Physiology of Fishes, Volume II: Behavior focuses on the physiology of fishes, as well as nervous and visual systems, sense organs, fish behavior, and pigment of fishes. The book first offers information on the nervous system, including the telencephalon, mesencephalon, metencephalon, medulla oblongata and spinal cord, autonomic nervous.   OBJECTIVE: The envisioned monitor is a working device that quantifies serial/continuous measurements of vascular volume components to detect shifts of 2% in less than 1 hour. DESCRIPTION: The clinical evaluation of hemorrhage, which is the single most treatable cause of mortality in trauma patients remains problematic (1,2).

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Vascular and extravascular fluid volumes in the Pacific hagfish, Eptatretus stoutii (Lockington) by Joseph Edward McCarthy Download PDF EPUB FB2

Vascular and extravascular fluid volumes in the Pacific hagfish, Eptatretus stoutii (Lockington) Fluid volume calculations were based upon values extrapolated to "zero" time. The packed blood cell volume for five animals was ± percent of the body weight.

The plasma volume was ± percent of the body by: 5. VASCULAR AND EXTRAVASCULAR FLUID VOLUMES IN THE PACIFIC HAGFISH, EPTATRETUSSTOUTII(LOCKINGTON) INTRODUCTION The hagfish, Eptatretus stoutii, is considered to be one of the most primitive living vertebrates.

Despite this unique position in the phylogenetic classification of the vertebrates, the hagfish has been largely ignored by biologists even. Vascular and extravascular fluid volumes in the Pacific hagfish, Eptatretus stoutii (Lockington) By.

Abstract. Graduation date: The partitioning of body fluids in the Pacific hagfish was investigated\ud using several experimental techniques. Direct measurement\ud of the blood volume was obtained through the simultaneous use\ud of tagged. The nature of ammonia and urea excretion was examined in the Pacific hagfish (Eptatretus stoutii), which, under resting conditions, excreted similar quantities of nitrogen as either ammonia or urea.

The hagfish alimentary canal has been morphologically characterized with various microscopy techniques in both the Atlantic (Myxine glutinosa) and Pacific (Eptatretus stoutii) species [8, 9].

With. Hagfish are osmoconformers, maintaining an internal osmolality that matches their seawater habitats. Hagfish would, therefore, appear to have no physiological need to drink, but previous studies are equivocal regarding whether drinking in hagfish occurs.

The current study addressed this knowledge gap, by examining drinking and water permeability in the Pacific hagfish, Eptatretus stoutii. VolumeIssue 2. Article. Gill ultrastructure of the pacific hagfish Eptatretus stouti. Jon Mallatt. Department of Zoology, Washington State University, Pullman, Washington, ‐ Search for more papers by this author.

Charles Paulsen. Nozaki, M. and Gorbman, A. () Immunocytochemical localization of somato-statin and vasotocin in the brain of the Pacific hagfish Eptatretus stouti. Cell. We have studied the heart in three species of hagfish: Myxine glutinosa, Eptatretus stoutii, and Eptatretus cirrhatus and report about the morphology of the ventricle, the arterial connection and the ventral aorta.

On the whole, the hagfish heart lacks outflow tract components, the ventricle and atrium adopt a dorso‐caudal rather than a ventro‐dorsal relationship, and the sinus venosus. Immediate vasoconstriction to increase blood pressure is the result.

ADH also causes activation of aquaporin channels in the collecting ducts to affect the recovery of water to help restore vascular volume. Diuretics and Fluid Volume. A diuretic is a compound that increases urine volume. Three familiar drinks contain diuretic compounds: coffee.

Univertsitetsforlaget, Oslo. McCarthy J. () Vascular and extravascular fluid volumes in the Pacific hagfish, Eptatretus stouti (Locking- ton), MSc thesis, Oregon State University.

McCarthy J. and Conte F. () Determination of the volume of vascular and extravascular fluid in the Pacific hagfish, Eptatretas stouti (Lockington). T1 - Extravascular extravasation of fluid as a complication of central venous lines in the neonate. AU - Keeney, S.

AU - Richardson, C. PY - /1/1. Y1 - /1/1. N2 - The use of central venous lines in neonatal intensive care is widespread. Specifically, we measured preinfusion plasma volume by using Evans blue, serial Hb, and urine outputs to calculate the “volume-dynamics” and intravascular and extravascular fluid volume shifts during and after a min infusion of either 25 mL/kg lactated Ringer’s solution (LR) or 4 mL/kg HSD in conscious normovolemic sheep.

Vascular and extravascular fluid volumes in the Pacific hagfish, Eptatretus stoutii (Lockington) Joseph Edward McCarthy, Oregon State University, General Science, us. The goal of this study was to identify whether Pacific hagfish (Eptatretus stoutii) possess glucocorticoid and mineralocorticoid responses and to examine the potential role(s) of four key steroids in these c hagfish were injected with varying amounts of cortisol, corticosterone or deoxycorticosterone (DOC) using coconut oil implants and plasma glucose and gill total-ATPase.

We have studied the heart in three species of hagfish: Myxine glutinosa, Eptatretus stoutii, and Eptatretus cirrhatus and report about the morphology of the ventricle, the arterial connection and the ventral the whole, the hagfish heart lacks outflow tract components, the ventricle and atrium adopt a dorso-caudal rather than a ventro-dorsal relationship, and the sinus venosus opens.

Pacific hagfish, Eptatretus stoutii, can recover from 36 h of anoxia and their systemic hearts continue to work throughout the exposure.

Recent work demonstrates that glycogen stores are utilized in the E. stoutii heart during anoxia but that these are not sufficient to support the. The hagfish circulatory system is comprised of an extensive network of sinuses which are 65 connected on one side by arteries and on the other by veins (Fig.

2) (1). Hagfish have the greatest blood volume to body volume ratio of all the vertebrates, and > 30% of this blood resides in the sinus system. For example, the blood volume of the Pacific hagfish (Eptatretus stoutii) is approximately twice that of mammals, ranging from to ml kg −1 (McCarthy and Conte, ; Forster et al., ).

Nearly 30% of this volume is contained within the venous sinus system, of which the large subcutaneous sinus (SCS) is a dominant component. The maximum volume of Ringer's that could be injected before leakage occurred, expressed as a percentage of body volume, was ± 8% for Pacific hagfish and ± 6% for the Atlantic hagfish, a difference that was not statistically significant (p = ) (figure 1c).

Inflation trials provided a unique opportunity to probe the mechanical. volume venous comp vornanen effects ventricle myocytes atrial hearts hypoxia cardiovascular adrenergic physiology teleost cells atp channels myocardium vascular biochem oncorhynchus fish heart icardo axelsson coronary   Learning how hagfish survive without oxygen could offer valuable insights for cardiovascular research, according to a new study.

It is the first known study to examine how the isolated hagfish. Eom, J. and Wood, C.M. () The ventilation mechanism of the Pacific hagfish Eptatretus stoutii (Lockington ).J. Fish Biol. phosphogen, carbohydrate, lipid, ammonia, fluid volume and electrolyte metabolism.

C.M., and Shelton, G. () Physical and adrenergic factors affecting systemic vascular resistance in the. It’s all in the gills: Evaluation of O 2 uptake in Pacific hagfish refutes a major respiratory role for the skin.

Exp. Biol PDF) Aug   Cardiac responses to anoxia in the Pacific hagfish, Eptatretus stoutii. Cardiac stroke volume increased from routine (± ml kg⁻¹) to partially compensate the anoxic bradycardia, such that cardiac output decreased by only 33% from the routine value of ± ml min⁻¹ kg⁻¹.

Cardiac power output decreased by only 25% from the. Assessment of intravascular volume status and volume responsiveness in critically ill patients Kambiz Kalantari1, Jamison N.

Chang1, Claudio Ronco2 and Mitchell H. Rosner1 1Division of Nephrology, University of Virginia Health System, Charlottesville, Virginia, USA and 2Department of Nephrology Dialysis and Transplantation, International Renal Research Institute (IRRIV), San Bortolo Hospital.

The hagfish circulation contains a high volume of blood ( mL∙kg −1) and is remarkable for the number of accessory c output from the branchial heart of hagfishes is comparable to that of elasmobranch and most teleost fishes, but blood pressures are considerably lower than in any other vertebrate group.

Two Pacific hagfish actively feeding on a dead sharpchin rockfish, Sebastes zacentrus, while one remains in a curled position at the left of the photo. While polychaete marine worms on or near the sea floor are a major source of nutrition, hagfish can feed upon and often even enter and eviscerate the bodies of dead and dying/injured sea.

A notochord is characteristic of developing chordates (which comprise amphioxus, tunicates and vertebrates), and, more arguably, is also found in some other animals. Although notochords have been well reviewed from a developmental genetic point of view, there has heretofore been no adequate survey of the dozen or so scenarios accounting for their evolutionary origin.

Journal of Integrative Plant Biology55 (4): – Invited Expert Review The Plant Vascular System: Evolution, Development and Functions William J. Lucas1∗, Andrew Groover2, Raffael Lichtenberger3, Kaori Furuta3, Shri-Ram Yadav3, Yka Helariutta¨ 3, Xin-Qiang He4, Hiroo Fukuda5, Julie Kang6, Siobhan M.

Brady1, John W. Patrick7, John Sperry8, Akiko Yoshida1, Ana-Flor Lopez-Mill´ an. Fluid shifts in vascular and extravascular spaces during and after simulated weightlessness. Hargens AR. To simulate weightlessness in a normal-gravity environment, eight male subjects were tilted 5 degrees head-down for 8 h to determine vascular and extravascular shifts of fluid.

Lymph Vascular System. To return the excess extravascular fluid, the lymph --> from periphery to big veins in base of neck - contains 70% of the body's total blood volume at any time - wall vein similar to common basic structure: t.

IMA - T. Adventitia is always the. Thoracic Intravascular and Extravascular Fluid Volumes in Cardiac Surgical Patients. You will receive an email whenever this article is corrected, updated, or cited in the literature.

You can manage this and all other alerts in My Account. The alert will be sent to. Other articles where Water-vascular system is discussed: echinoderm: Water-vascular system: The water-vascular system, which functions in the movement of tube feet, is a characteristic feature of echinoderms, and evidence of its existence has been found in even the oldest fossil forms.

It comprises an internal hydraulic system of canals and reservoirs containing a. The disrupted vascular and lymphatic supply of the injured tissue then fills the created potential space with blood, lymph and eventual necrotic debris. The lower extremity is a common location for these lesions, characteristically occurring at the greater trochanter or anterolateral aspect of the proximal thigh.

Start studying Hagfish and Lamprey Lab. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Bdellostoma stoutii (Pacific) gill pouches Jaws absent, no bones. Body naked, eel-like. Degenerate eyes. pairs of external gill openings.

No paired fins, no dorsal fin. Part of caudal fin extends onto dorsal surface. Scavengers on invertebrates and others, e.g., netted fishes Biting mouth bearing barbels.

(1) a route along which the fluid can flow and (2) a difference in energy (pressure) levels between the two points. The volume of flow depends on the net energy difference between these two points, a factor that is affected by losses result-ing from the movement of the fluid.

"The high quality of the chapters has been maintained. Lists of reference are extensive and up to date. This book continues to be the best single-volume, general reference to fish physiology.

It is a worthwhile investment." ―Malcolm S. Gordon, University of California, Los Angeles, in The Quarterly Review of Biology, December Reviews: 2. Vascular anomalies represent a spectrum of disorders from a simple “birthmark” to life- threatening entities.

Incorrect nomenclature and misdiagnoses are commonly experienced by patients with these anomalies. Accurate diagnosis is crucial for appropriate evaluation and management, often requiring multidisciplinary specialists.

Classification schemes provide a consistent terminology and. Other articles where Velum is discussed: respiratory system: Fishes: A peculiar respiratory structure, the velum, just behind the nostril opening, dangles from the upper midline of the pharynx, resembling an inverted T.

Membranous scrolls attached to this horizontal bar can extend downward and then roll upward like window shades. A combination of velar and gill-pouch contractions directs the.Fish Physiology, Volume 38 in this ongoing series, examines how the inherent potential of fish to express traits of economic value can be realized through aquaculture.

Topics covered include the regulation of the reproductive cycle of captive fish, shifting carnivorous fish towards plant-based diets, defining the challenges, opportunities and optimal conditions for growth under intensive.Teleost fishes and mammalian lineages diverged million years ago, and environmental requirements (water versus air) have resulted in marked differences in cardiovascular function between fish and mammals.

Suggestions that the fish secondary vascular system (SVS) could be used as a model for the mammalian lymphatic system should be taken with caution.