Anatomy Commons^™

Physiologic Responses To Maximal Exercise On A Treadmill, Monarch Bicycle Ergometer And Schwinn Air-Dyne Ergometer, Elaine Jason Naegele

Masters Theses

The study was conducted to determine which of three exercise modes would elicit the highest values for maximal oxygen uptake and maximal heart rate. Maximal graded exercise tests were performed by 20 healthy adults, ten women and ten men. Five of the women and five of the men were trained and the remaining ten were untrained. Each subject used, in a random order: (a) a motorized treadmill, (b) a Monarch bicycle ergometer, and (c) a Schwinn Air-Dyne ergometer. For each test, subjects were encouraged to complete successively harder workload stages, until they reached volitional exhaustion or localized muscle fatigue.

The …

Spatial Patterns Of Plant Communities And Differential Weathering In Navajo National Monument, Arizona, Jack D. Brotherson, William E. Evenson, Samuel R. Rushforth, John Fairchild, Jeffrey R. Johansen

Great Basin Naturalist

Vegetation patterns in Navajo National Monument, Arizona, were studied over a five-year period from 1977 to 1981. Twelve distinct plant community types occur within the boundaries of the park. These communities are characterized and the dominant plant species of each are recorded. The relationships of parent material, soils, and moisture to plant communities are also discussed. It appears that discrete communities occupy soils of different characteristics, particularly with respect to amount of weathering of parent material.

Qualitative And Quantitative Morphology Of Lateral Rectus Motoneurons Of The Principal Abducens Nucleus, Helen Russell-Mergenthal

Theses and Dissertations

Nine lateral rectus motoneurons of the principal abducens nucleus, intracellularly stained with HRP, were morphometrically analyzed by light microscopy using a new method for determining motoneuron size. Particular emphasis was placed on devising a method of estimating total dendrite size from the proximal dendritic diameter alone.

The dendrites of these cells were divided into three types. One type, the microdendrites, had a consistent diameter of l micrometer, variable but short lengths, and added very little to the overall cell size. The majority of the dendrites on these cells (83) were standard in appearance but they could be separated into two …

An Anatomical And Physiological Investigation Of The Infralimbic Region Of The Rat Medial Frontal Cortex, Robert T. Terreberry

Dissertations

No abstract provided.

The Neuroanatomical Connections And Somatotopic Organization Of The Posterior Nuclear Complex Of The Rat Thalamus, E. Luke Bold

Dissertations

No abstract provided.

Methemoglobin Reduction In The Presence Of Various Concentrations Of Oxyhemoglobin, Ali Mansouri

Journal of the Arkansas Academy of Science

Methemoglobin reduction in human red blood cell is governed by many factors, one of which is the concentration of oxyhemoglobin. Experiments were conducted to determine the inhibition of methemoglobin reduction by oxyhemoglobin under concentrations approaching those in the red cell. Hemoglobin, methemoglobin reductase and cytochrome b₅ were prepared by routine protein purification methods. Methemoglobin reduction was carried out at 37° C in spectrophotometer. It is shown that methemoglobin concentration variation (at least when it is above 1 mM) does not change the reduction rate. Whereas, the ratio of methemoglobin to oxyhemoglobin determines the rate of methemoglobin reduction when all other …

Alterations In Blood-Brain Barrier Function Following Acute Hypertension: Comparison Of The Blood-To-Brain Transfer Of Horseradish Peroxidase With That Of Alpha-Aminoisobutyric Acid, Mary Draper Bennett Ellison

Theses and Dissertations

The blood-brain barrier (BBB) selectively restricts the blood-to-brain passage of many solutes owing to unique properties of cerebrovascular endothelial cell membranes. This selective blood/brain interface participates in the maintenance of brain homeostasis by controlling nutrient, gas, and fluid exchange necessary for brain function. Normal BBB function can be altered under various pathological and experimental conditions, allowing the transfer into brain parenchyma of blood-borne solutes normally excluded. To date, experimental study of the BBB has been accomplished primarily through the use of two different methodological approaches. Some investigators have focused on the barrier's morphological correlates and its morphopathological alteration under various …

The Effects Of Alprazolam And Triazolam On Two Methods Of Induced Aggression In Rats, Howard Kiel Plummer

Masters Theses

Two new benzodiazepine tranquilizers, alprazolam and triazolam were used to try to reduce aggression in rats produced by isolation or drugs. Both reduced elements of isolation-induced aggression, and triazolam was more potent. Little reduction was found in drug-induced aggression by either tranquilizer. It is unknown why aggression was not reduced for the drug-induced method, but it is possible that a synergism existed between the two methods of inducing aggression, since the same rats were used for both methods. Different rats were used for each tranquilizer. Reduction in aggression for the isolated rats seems consistent with results for other benzodiazepine tranquilizers.

Age-Related Changes Of Neurites In Meissner Corpuscles Of Diabetic, Vicky R. Ras

Loma Linda University Electronic Theses, Dissertations & Projects

This thesis is based on a qualitative and quantitative study of the neural component of Meissner corpuscles of diabetic and non-diabetic mice. Age-related changes were also documented in these mechanoreceptors. Corpuscles from forty-six diabetic mice and forty-six non-diabetic mice ranging from 2.5 to 17 months old were studied. Forepaw index digital pads were formalin-fixed and frozen-sectioned parallel to each digit and perpendicular to the skin. Serial sections were then silver-impregnated to allow light microscopic examination of the neurites in the corpuscles.

Neurites became more coarse, tortuous, branched, varicose, and thus more complex until middle age. Corpuscle size appeared greatest at …

Mule Deer Passage Beneath An Overland Coal Conveyer, Charles L. Greenwood, Larry B. Dalton

Great Basin Naturalist

Presently, information pertaining to migration and daily movement patterns of big game in relation to overland conveyors or large diameter pipelines is sparse. A literature review showed that moose (Alces alces), caribou (Rangifer tarandus granti), reindeer, and dall sheep (Ovis dalli dalli) will pass beneath or over large diameter pipeline systems. But no information was found relative to big game crossing coal conveyor systems. Mule deer (Odocoileus hemionus) passage beneath an overland coal conveyor in Carbon County, Utah, was studied during spring 1981. Deer avoided crossing at underpass opportunities where the clearance …

Distribution Of The Shoshone Scuplin (Cottus Greenei: Cottidae) In The Hagerman Valley Of South Central Idaho, Richard L. Wallace, J. S. Griffith Jr., D. M. Daley, Patrick J. Connolly, G. B. Beckham

Great Basin Naturalist

Cottus greenei, a potentially threatened species endemic to Idaho, was collected from 49 localities in 25 springs/streams in south central Idaho. Most localities were along the north bank of the Snake River in waters of the Thousand Springs formation, Gooding County. One population was found in a spring in the main Snake River. Another sculpin, Cottus bairdi, was collected with C. greenei at 23 locations in 16 springs/streams. Confusion concerning the type locality of Cottus greenei is discussed.>

An Attempt To Estimate Teat Quality Of Sows By Hand Milking During Farrowing, D. Fraser, C. S. Lin

Anatomy Collection

For 21 sows, teats were hand milked individually in a standard way during farrowing in an attempt to produce an index of teat quality. The piglets' teat selection and 14-day weights were then compared with the hand milking results. Of within-litter variation in 14-day weight, 38.67% was explained by 1-day weight, and only 4.6% extra variation by the index derived from hand milking. Use of the index gave no improvement over previous models involving 1-day weight and teat number (anterior to posterior). Hand milking showed a pronounced decline in colostrum yield from the most anterior teat pair (46.8 g) to …

Warm Water Aquaculture Using Waste Heat And Water From Zero Discharge Power Plants In The Great Basin, Richard A. Heckmann, Robert N. Winget, Rex C. Infanger, Roger W. Mickelsen, John M. Hendersen

Great Basin Naturalist

Two series of experiments were completed to determine (a) toxicity of waste water from power plants on warm water fish and (b) multiple use of waste heat and water for aquatic animal and plant production. All three types of waste water from a typical coal-fired power plant are acceptable for growing catfish and tilapia following aeration. This growth was compared with fish raised in spring water. Closed, recirculating polyculture systems using evaporation pond water operated efficiently for plant (duckweed) and animal (fish and freshwater prawns) production. Duckweed is an excellent supplement for fish feed. Tilapia and freshwater prawns grew rapidly …

Analysis Of Forelimb Motor Cortical Projections After Neonatal Hemicerebellectomy In Rats, Daniel L. O'Donoghue

Dissertations

No abstract provided.

Distribution And Proportion Of Immunoreactive Neuron Specific Enoclase Containing Cells In The Rat Pineal Gland, Alfonso Miranda C.

Loma Linda University Electronic Theses, Dissertations & Projects

The distribution and proportion of cytoplasm containing immunoreactive neuron specific enolase (NSE) in the rat pineal have been investigated. Step serial sections of the pineal glands of 7 male Sprague-Dawley rats were stained for NSE using an indirect immunoperoxidase method. The volumes of the pineals and of the regions containing reactive cells were derived from the distance between sections and the sum of the corresponding sectional areas of camera lucida drawings. The proportion of the NSE areas actually consisting of NSE reactive cytoplasm was measured using an image array processor.

Cytoplasm reactive for NSE was consistently localized to the posterior …

Bird Distributional And Breeding Records For Southeastern Idaho, Utah, And Adjacent Regions, Clayton M. White, Herbert H. Frost, Dennis L. Shirley, G. Merrill Webb, Richard D. Porter

Great Basin Naturalist

New distributional records or the status for 33 species of birds that have occurred within Utah, adjacent southeastern portions of Idaho, or along the border of states surrounding Utah are reviewed. Four species, the Cattle Egret (Bubulcus ibis), Common Moorhen (Gallinula chloropus), Great-tailed Grackle (Quiscalus mexicanus), and Common Grackle (Quiscalus quiscula), represent new Utah breeding records established within the past decade, and they are commented upon. One other, the Black-tailed Gnatcatcher (Polioptila melanura), may be breeding in Utah. The Mockingbird (Mimus polyglottos) may likewise be breeding in southeastern …

Front Matter, Vol. 7

Great Basin Naturalist Memoirs

No abstract provided.

End Matter, Vol. 7

Great Basin Naturalist Memoirs

No abstract provided.

Full Issue, Vol. 7

Great Basin Naturalist Memoirs

No abstract provided.

Age-Changes Of The Neuronal Component Of Meissner Corpuscles In The Mouse Digital Pad, Roger C. Mathewson

Loma Linda University Electronic Theses, Dissertations & Projects

Silver impregnated sections of mouse digital pads were studied using light microscopy to detect age-related changes of the neuronal component of Meissner corpuscles. Direct microscopic observation, photomicrographs and camera lucida tracing were utilized. From qualitative observation, the corpuscular neurites were found to undergo morphological age-related changes of diameter, tortuosity, varicosity, branching and terminal expansion size. Quantitative examination was made of the number of corpuscles, corpuscular neurites, branching neurites, cross-innervations, terminal neurite expansions, neurite intraepidermal continuations and terminal axonal processes. The number of corpuscles and neurite intraepidermal continuations decreased with age while having significant linear correlation; whereas, branching increased with age …

Otopathology In Two Lines Of The Diabetic Chinese Hamster, Cricetulus Griseus, Jo A. Oostveen

Masters Theses

Recent evidence suggests that a bilateral, progressive sensorineural hearing loss is associated with diabetes mellitus in humans. The microangiopathy presumedly leading to this loss seems to be similar to microvascular changes leading to this loss seems to be similar to microvascular changes leading to renal and retinal deterioration. A total of twenty-four pairs of temporal bones from two diabetic, and one non-diabetic lines of the Chinese hamster were processed and evaluated for their total auditory histopathology. Hematoxylin and eosin serial sections demonstrated a mean otopathological involvement 5.6 times greater for diabetic animals compared to non-diabetic animals. Capillary basement membrane thickening …

Life History Of The Lahontan Cutthroat Trout, Salmo Clarki Henshawi, In Pyramid Lake, Nevada, William F. Sigler, William T. Helm, Paul A. Kucera, Steven Vigg, Gar W. Workman

Great Basin Naturalist

The Pyramid Lake Lahontan cutthroat trout (Salmo clarki henshawi) population was sampled on a monthly basis from November 1975 through December 1977. A subsample of 676 trout, stratified by fish size and lake habitat, provided biological data. The entire population is presently derived from hatchery production, stocked at lengths of approximately 75 to 300 mm. Peak annulus formation occurs in March and April, followed by the period of maximum growth. Scale patterns illustrate a variable growing season. Maximum growth in length is in the first three years of life; after that males begin to grow faster than females. …

School Of Medicine And Department Of Anatomy History, D. L. Matthies

UND Departmental Histories

This departmental history was written on the occasion of the UND Centennial in 1983. Supplemental information on the Anatomy Department was added at a later date.

Serial Cardiovascular Adaptations During Pregnancy, Mark Vincent Hart

Dissertations and Theses

Maternal cardiovascular adaptations appear to be essential in order to supply extra circulation to both the developing fetus and maternal system during a successful pregnancy. Since inadequate cardiovascular adjustments may produce abortions or maternal morbidity, the characterization of maternal cardiovascular changes during pregnancy and the elaboration of the underlying mechanism for these changes are essential to the understanding of how the heart enlarges during pregnancy and what significance this enlargement might have. To provide needed information regarding this time course and extent of maternal cardiac enlargement and the hormonal and hemodynamic changes which may be responsible for these changes, the …

An Investigation Into The Cellular And Humoral Organization Of The Thymic Microenvironment, Howard R. Higley

Dissertations

No abstract provided.

An Anatomical, Electrophysiological, And Behavioral Analysis Of Cortical Efferent Plasticity In The Rat, Gwendolyn Kartje-Tillotson

Dissertations

No abstract provided.

The Relationship Between Arm Length And Leg Length With Sit-And-Reach Performance, Thomas Marshall Gordon

Graduate Theses

No abstract was provided.

A Comparison Of Thalamic Afferents To The Rostral And Caudal Forelimb Regions Of Rat Motor Cortex: An Experimental Investigation Using Horseradish Peroxidase, E. Luke Bold

Master's Theses

No abstract provided.

Supramedullary Afferents To The Nucleus Raphe Magnus In The Rat: A Study Using Transcannula Hrp-Gel And Autoradiography Techniques, Susan Mary Carlton

Theses and Dissertations

The nucleus raphe magnus (NRM) is known to play an important role in a descending antinociceptive system through its projections to the spinal cord dorsal horn and trigeminal subnucleus caudalis. Identifying those nuclei which project to NRM is essential in determining other CNS cell groups which could influence analgesic mechanisms by virtue of their connections with NRM.

In an attempt to define NRM afferents, 19 adult Sprague-Dawley rats were stereotaxically implanted with a pellet of HRP gel within NRM and in adjacent areas. A transcannula technique was specifically developed for the subcortical placement of HRP in a gel form. Use …

The Induced Histopathology Of The Testes And Epididymides Of Cf-1 Mice By Known Or Suspected Teratogens, Mutagens, And Carcinogens, Kevin K. Block

Masters Theses

With each passing year, humans are exposed to ever increasing numbers of chemical agents, many of which may have mutagenic, carcinogenic, or teratogenic effects on the human species. Animal studies must be performed on any chemical substance that is suspected of being acutely dangerous to humans by way of cancer induction or inducted malformations to infants. Seven drugs of known or suspected mutagenic, carcinogenic, or teratogenic potential were examined for their ability to induce histopathology in the testes and epididymides of CF-1 mice. Mitomycin-C, hydroxyurea, and adriamycin induced significant histopathology whereas predisolone, thalidomide, streptomycin sulfate, and polybrominated biphenyl induced minimal …