Physiology Commons^™

Front Matter, Vol. 4

Great Basin Naturalist Memoirs

No abstract provided.

A Light And Electron Microscopic Study Of Visual Neurons In The Medulla Externa Of The Crab Hemigrapsus Nudus, Yu Cheng Liao

Loma Linda University Electronic Theses, Dissertations & Projects

The decapod crustacean with a relatively well-defined visual system have contributed significantly to our understanding of visual neuron morphology and physiology. The general morphology of the optic lobes of several decapods were initially described by Parker (1897) and Hanstrom (1924). In the past few years, several light and electron microscope studies have been made on the lamina ganglionaris: the first optic ganglion, of the lobster (Hamori and Horridge, 1966a); the crayfish (Hafner, 1974; Nassel, 1976a), and the crab (Stowe et al., 1977; Rafuse et al., in preparation). As yet, no adequate description has been made of the visual neurons in …

Analysis Of The Potentials And Topographical Relations Between The Olfactory Bulb And Prepyriform Cortex, William S. Seibly

Loma Linda University Electronic Theses, Dissertations & Projects

Olfactory bulb efferents sweep caudally over the prepyriform cortex in a broad fiber sheet called the lateral olfactory tract (LOT). The LOT begins as a compact sheet of fibers in the olfactory peduncle and narrows to a bundle caudally. It is the primary axonal pathway between the olfactory bulb and the cortex. The shape and cross-sectional area of the LOT was measured from histologic sections. The cross-sectional area diminishes to about half from rostral to caudal measurements. An array of 58 electrodes spaced at intervals of 1 mm was constructed to conform to the curvilinear surface and geometry of the …

The Effect Of Blood Infusion Upon Perceived Exertion, Mary Aubert Lindhjem

Human Movement Studies & Special Education Theses & Dissertations

The purpose of this study was to determine the effect of packed RBC infusion upon ratings of perceived exertion (RPE), Three types of RPE were measured: 1) local muscular RFE, 2) cardiopulmonary RPE, and J) general RFE, The subjects, 16 experienced long distance male runners, undertook four treadmill runs to exhaustion, Subjects were matched according to time to exhaustion (ET) on the first trial (T1), and assigned to either an experimental (E) or control (C) group, Both groups had 46o ml blood withdrawn following Tl, T2 served as a baseline test and was administered about two weeks following blood withdrawal, …

The Rate Of The Healing Process In Venous Thrombi Produced By A Sclerosing Agent With Special Attention To Endothelial Lining, Kiyoshi Tanaka

Loma Linda University Electronic Theses, Dissertations & Projects

Despite extensive clinical and experimental investigations of venous thrombosis, relatively little is known about the early phases of healing of the venous thrombus. Soon after its discovery heparin has become the most popular agent for the prevention and treatment of venous thrombosis, but there are a number of unanswered questions regarding the most satisfactory treatment for venous thrombosis.

One area of controversy has been the duration of anticoagulation therapy for acute venous thrombosis. If the anticoagulant is discontinued too soon, the thrombus may continue to propagate. Prolonged anticoagulant therapy exposes the patient to the risk of serious hemorrhage. The objective …

Metabolism And Solar Radiation In Dark And White Herons Nesting In Hot Climates, Hugh I. Ellis

Biology: Faculty Scholarship

Metabolism, body temperature (Tb), and feather reflectance was measured for dark Louisiana herons (LOU), little blue herons (LB), snowy egrets (SE), and cattle egrets (CE); only LOU nest preferentiallyin shade. The reflectance of LOU and adult LB was 13%-15%; it was 80%-82% for SE, CE, and immature (white) LB. Tb for all four species approximated 40 C; hypothermy was never observed. Basal metabolism (HJb) was 107% of the expected level for LOU, 85% for SE and CE, and 66% for LB. Minimal thermal conductance (C) was calculated as approximately 131% of the expected value for LOU, 115% for SE and …

Effects Of Electromagnetic Fields On The Visually Evoked Response In The Visual Cortex, Arni Holm

Dissertations

Problem. This study sought to determine if electromagnetic fields affect the visually evoked response of the visual cortex. From the fact that nerve impulses are propagated by the motions of electrically charged ions, the question arose whether the presence of an external electromagnetic field might affect either the propagation of nerve impulses traveling through the optical nerve pathway or the functioning of the visual cortex itself.

Method. Evoked responses were produced in the visual cortex of cats by visual stimulation (light flashes). Surface electrodes, located at the visual cortex (and connected to a preamplifier and an oscilloscope) detectedthe evoked responses …

Effects Of Chemoreceptor And Baroreceptor Inputs On The Termination Of Inspiration, Dexter Franklin Speck

Dissertations

No abstract provided.

The Effect Of Autonomic Mediators Released By Electrical Stimulation Of The Ventricles On Contractile Force And Vulnerability To Fibrillation, David Emerson Euler

Dissertations

No abstract provided.

The Effect Of Walk Or Jog Recovery From Anaerobic Work On Blood Lactate Levels And Subsequent Two-Minute Run Performance, Rick Alan Livesey

Masters Theses

The purpose of the study was to investigate the effects of a walk or jog recovery on two-minute run performances and the concentrations of blood lactate.

Eight highly trained male subjects were selected from the Eastern Illinois University Track Team. The test procedure consisted of two, maximal two-minute runs on the track for distance, separated by a 30-minute recovery. The recovery consisted of a walk at 20-minutes per mile pace or a jog at 7½ to 8 minutes per mile pace. Venous blood samples were drawn three minutes after the first run, two minutes prior to the second run, and …

A Cardiovascular Exercise Program For A Paraplegic Amputee, Roger D. Wells

Masters Theses

The intent of the study was to establish a ten week cardiovascular exercise program for a paraplegic amputee and evaluate the effects through a selected battery of physiological tests and measurements. Included were body weight, skinfold thickness, reaction time, grip strength, static and dynamic lung volumes, heart rate, blood pressure, resting VO2 and maximum VO2. A careful training record was kept and the subject also made observations concerning his feelings about the training.

The subject, D.L.W. was a 37 year old male faculty member at Eastern Illinois University in Charleston, Illinois. He was given a complete physical examination and a …

Dromotropic Influences Of The Individual Cardiac Nerves At The Atrioventricular Junction Of The Canine Heart, Lynn E. Rinkema

Master's Theses

No abstract provided.

The Effect Of Daily Exercise On Regional Myocardial Flow Of Proximal Coronary Constriction Dogs And Its Mechanism, Ming Hsiung Hwang

Master's Theses

No abstract provided.

End Matter, Vol. 3

Great Basin Naturalist Memoirs

No abstract provided.

Patterns Of Fetal Lamb Regional Cerebral Blood Flow During And After Prolonged Hypoxia, Stephen Ashwal, John S. Majcher, Nestor Vain, Lawrence D. Longo

Loma Linda University Electronic Theses, Dissertations & Projects

[Abstract not included]

Speculation: In the fetal lamb during prolonged intrauterine hypoxia, total and regional cerebral blood flows increase to the same extent without evidence of preferential shunting to critical brainstem or subcortical areas. Neuropathologic studies have indicated relative sparing of these areas during similar animal experimental or human neonatal conditions. This suggests that the pattern of hypoxic ischemic insult to the neonatal central nervous system associated with asphyxia may differ from that produced by hypoxia alone. In addition, during asphyxia these pathologic changes may result primarily from hypotension and decreased regional cerebral blood flow, or from regional metabolic derangements …

End Matter, Vol. 3, Index

Great Basin Naturalist Memoirs

No abstract provided.

Full Issue, Vol. 3

Great Basin Naturalist Memoirs

No abstract provided.

Front Matter, Vol. 3

Great Basin Naturalist Memoirs

No abstract provided.

Rate Of Depletion Of Liver Vitamin A In Chicks, Weanling Rabbits And Weanling Rats Fed Vitamin A-Free Diets, J.J. Tlustohowicz, R.C. Hall, J.E. Rousseau, H.I. Frier, S. Donoghue

Storrs Agricultural Experiment Station

No abstract provided.

The Effects Of Orally Administered Charcoal On Intestinal Gas, Herbert J. Thompson

Loma Linda University Electronic Theses, Dissertations & Projects

Our primary objectives were to determine if orally administered charcoal effectively decreased intestinal gas, and relieved subjective symptoms associated with a high gas producing meal.

The adsorptive properties of charcoal for those gases usually found in intestines (CO₂, H₂, CH₄, H₂S) were first tested by placing measured samples of each gas alone with weighted samples of activated charcoal in a respirometer.

The degree of adsorption of each gas by charcoal was determined. Charcoal effectively adsorbed H₂ and CO₂.

A group of normal human males were fed a gas producing …

The German-Russian Brauche., Dawn Schock

Undergraduate Theses and Senior Projects

The thesis is a study of German-Russian Brauche--an alternative system of healing which exists in south-central North Dakota. The text is divided into two sections: a history of the German-Russian people, complied from written sources; and a description and discussion of Brauche which relies extensively on personal interviews(included in the appendix) with Mrs. Eva Iszler, a practicing Brauche in Ashley, North Dakota.

The history of the German-Russian people is characterized by two major migrations: from Germany to Russia, and from Russia to the United States. Because these migrations were en masse and because the group has had to encounter three …

Central Organization Of The Cardiac Vagus, G. Steven Geis

Dissertations

No abstract provided.

Effect Of Traumatic Injury On Sensitivity To Insulin, Karl M. Nelson

Dissertations

No abstract provided.

A Comparison Of The Effects Of Two Therapeutic Exercises On The Muscle Action Potential Of The Vastus Medialis, Janet J. Lozar

Masters Theses

Electromyography was utilized to compare the effects of two therapeutic exercises at two work loads in knee extension on the muscle action potential in the vastus medialis. One exercise was extension to 180 degrees with a four second isometric hold and flexion to 90 degrees. The other exercise was extension to 180 degrees, 15 degrees flexion, 15 degrees extension and flexion to 90 degrees. Each exercise lasted for 10 seconds.

The subjects in the study were 11 varsity female athletes from the fall and winter interscholastic athletic program at Eastern Illinois University. The subjects met for the first time to …

The Relationship Between Oxygen Debt Size And Blood Ph Change During Recovery From Exercise On The Bicycle Ergometer And Treadmill, Timothy J. Falconer

Masters Theses

It was the purpose of this study to investigate the relationship of oxygen debt and blood pH change during the recovery from exercise.

For this study, ten male members of the Eastern Illinois University track team were chosen as subjects on the basis of their levels of physical condition.

The subjects were tested on three different occasions. The first test for all subjects was a fifteen minute resting oxygen consumption. Then depending upon random selection, the subjects ran on a treadmill and on another test day rode a bicycle ergometer, or vice versa. Preceding each exercise a pre-exercise micro-blood sample …

Variations In Mood During The Menstrual Cycle In Relation To The Personality Factors Of Trait-Anxiety And Androgyny, Mary Leslie Smith O'Connor

Master's Theses

No abstract provided.

Isolation And Chemico-Physiologic Characterization Of A Parotid Hormone Activity From Porcine Glands, Jean-Marc Tieche

Loma Linda University Electronic Theses, Dissertations & Projects

For the past decade, evidence has accumulated which suggests that the resistance of the teeth to dental decay is in part under systemic control. It was shown that the resistance is accomplished through the optimal operation of a dentinal fluid transport mechanism which is believed to be hormonally controlled by the hypothalamic-parotid gland endocrine axis. Although circumstantial evidence for such an endocrine function was strong, the isolation of a parotid hormone which stimulates the dentinal fluid transport mechanism remained to be accomplished.

Using modern biochemical techniques, a methodology was designed to isolate and purify the hormone from porcine parotid glands. …

End Matter, Vol. 20 No. 5

Brigham Young University Science Bulletin, Biological Series

No abstract provided.

Mammals Of The Smithsonian Venezuelan Project, Charles O. Handley Jr.

Brigham Young University Science Bulletin, Biological Series

Mammals and their ectoparasites were collected in all parts of Venezuela between 1965 and 1968 by the Smithsonian Venezuelan Project. Ecological and geographical data are summarized here for 38,213 specimens of 270 species of mammals obtained by the project.

Front Matter, Vol. 20 No. 5

Brigham Young University Science Bulletin, Biological Series

No abstract provided.