Learning outcomes and student-perceived value of clay modeling and cat dissection in undergraduate human anatomy and physiology

2011 ◽  
Vol 35 (1) ◽  
pp. 68-75 ◽  
Author(s):  
Mary Ellen DeHoff ◽  
Krista L. Clark ◽  
Karthikeyan Meganathan
Keyword(s):  
Blood Vessels ◽  
Learning Outcomes ◽  
Student Performance ◽  
Peripheral Nerves ◽  
Learning Experience ◽  
Three Dimensional ◽  
Perceived Value ◽  
High Order ◽  
Human Anatomy ◽  
Low Order

Alternatives and/or supplements to animal dissection are being explored by educators of human anatomy at different academic levels. Clay modeling is one such alternative that provides a kinesthetic, three-dimensional, constructive, and sensory approach to learning human anatomy. The present study compared two laboratory techniques, clay modeling of human anatomy and dissection of preserved cat specimens, in the instruction of muscles, peripheral nerves, and blood vessels. Specifically, we examined the effect of each technique on student performance on low-order and high-order questions related to each body system as well as the student-perceived value of each technique. Students who modeled anatomic structures in clay scored significantly higher on low-order questions related to peripheral nerves; scores were comparable between groups for high-order questions on peripheral nerves and for questions on muscles and blood vessels. Likert-scale surveys were used to measure student responses to statements about each laboratory technique. A significantly greater percentage of students in the clay modeling group “agreed” or “strongly agreed” with positive statements about their respective technique. These results indicate that clay modeling and cat dissection are equally effective in achieving student learning outcomes for certain systems in undergraduate human anatomy. Furthermore, clay modeling appears to be the preferred technique based on students' subjective perceptions of value to their learning experience.

scholarly journals 3D dissection tools in Anatomage supported interactive human anatomy teaching and learning

2019 ◽  
Vol 68 ◽  
pp. 02015
Author(s):  
Dzintra Kazoka ◽  
Mara Pilmane
Keyword(s):  
Blood Vessels ◽  
Teaching And Learning ◽  
Learning Experience ◽  
The Body ◽  
Human Anatomy ◽  
Virtual Tools ◽  
Anatomy Teaching

The main aim of this study is to present the usage and importance of 3D dissection tools in the teaching and learning of Anatomy and to describe and explain our experience with Anatomage Table in Human Anatomy studies at Rıga Stradiņš University. In 2017–2018 two 3D dissection tools (scalpels) were used every week in work with Anatomage Table during the practical classes. As methods for collecting data were used discussions between students and teachers. Together 200 students of the Faculty of Medicine and Dentistry were involved in this study. It was possible to create incisions and cuts in order to remove and uncover different layers of organic tissues, to move deep inside step by step and find out which structures it was necessary to look for. Afterwards students showed that they were able to place the organs back and reattach the bones, muscles, blood vessels in the body and put the skin back on. Students enjoyed virtual tools in the practical classes and learned the material better. Virtual tools helped students and tutors to easily understand and memorize different anatomy structures. 3D scalpels were useful for different education activities, but the learning experience may be suitable further for the study of real materials.

scholarly journals Blended learning pedagogy for teaching and learning Anatomy

2017 ◽  
Vol 06 (03) ◽  
pp. 219-231
Author(s):  
Durairaj Ponraj
Keyword(s):  
Blended Learning ◽  
Learning Outcomes ◽  
Student Performance ◽  
Teaching And Learning ◽  
Thinking Skills ◽  
Health Science ◽  
Assessment Tools ◽  
Human Anatomy ◽  
Learning Activity ◽  
Face To Face

Teaching and learning of human anatomy involves cadavers, bones, histology slides, plastinated body parts, anatomy models, visualizing pictures, drawing and memorizing many new Latin terminologies. It is very challenging for faculty members to teach and difficult to learn for any year one student doing medical or health science courses. This paper provides an insight into the use of a blended learning pedagogy using Computer Based Teaching [CBT] along with other tools to create e-Leaming materials for teaching and learning of human Anatomy with better learning outcomes. We focus on four CBTs developed in-house for blended learning by the biological sciences department, namely HistoBox, BoneBox, Heart & Coronary Artery Disease [CAD] and Neuro atlas for Anatomy and Physiology. The survey result on students learning using CBTs showed significant improvements in their learning behavior and assessment grades. The students preferred blended e-Leaming using HistoBox compared with traditional lecture and practical using microscopy, p<0.001. Our student survey revealed that 93% of the students agreed that the BoneBox CBT helped them to understand and learn the subj ects better than the traditional methods. About 88% of the students also agreed that the BoneBox used in blended learning helped them to improve in their practical test grades. 98% of the students rated the BoneBox CBT pedagogy as good and excellent approach for learning with interactive features. The case-scenarios and assessment quizzes used in the CBT improved the higher order critical thinking skills. One interesting finding of the survey showed that students preferred interactive quizzes and assessment tools than game based learning activity. The tools used in our blended learning are YouTube videos, e-books, mobile apps, kahoot, socrative, padiet and articulate storyline2. We use these tools for both synchronous and asynchronous learning activities. Most of the online learning materials are administered online using the “Blackboard” learning management system [LMS]. The department of biological science over time gradually moved away from the traditional 100% face-to-face classroom teaching to at least 30% of online blended learning methods using the CBTs and other e-Leaming materials. We compared the student module evaluation feedback and the students’ performance grade over the past 12 years and found that the use of blended e-Leaming has improved our student module delivery rating and student performance grades. Our module delivery ratings improved from 92.6% in 2004 to 96.4% in 2010 and finally to 99.85% in 2016 There is also a corresponding drop in student failure rates from 14.1% in 2004 to 8.5% in 2010 and finally to about 1.3% in 2016. We propose the use of blended learning pedagogy for teaching and learning Anatomy over traditional 100% face-to-face teaching to improve module delivery and students’ learning outcomes.

Enhancing Student Experience and Performance through Peer-Assisted Learning

2015 ◽  
Vol 31 (3) ◽  
pp. 321-336 ◽  
Author(s):  
Adriel Sudhakar ◽  
Jonathan Tyler ◽  
James Wakefield
Keyword(s):  
Peer Review ◽  
Learning Outcomes ◽  
Student Performance ◽  
Learning Experience ◽  
Student Experience ◽  
Student Population ◽  
First Year ◽  
Peer Assisted Learning ◽  
Assessment Guidelines ◽  
And Performance

ABSTRACT This study examines the effectiveness of an online peer review forum (forum). The study allows comparisons to be made between different forum scenarios. The forum was introduced, over a series of semesters, in a first-year accounting screencast assignment: from no forum, to an optional forum, to a compulsory forum. Students indicated that the compulsory forum, underpinned by more structured guidelines for providing feedback, was more beneficial in facilitating improvement in their assignment quality and learning outcomes. We observed improved student performance where a forum was made available. This result is stronger where the use of the forum was optional relative to where it was compulsory. We surmise that this was caused by a higher proportion of exemplar screencasts being posted by more motivated and confident students in the optional forum, creating higher perceived expectations across the total student population. Our findings suggest that more structured feedback through the forum does not necessarily lead to higher performance, even though students value more structured constructive and critical comments as part of their learning experience. These findings highlight the importance of carefully considering forum design and assessment guidelines when embarking on peer review learning initiatives.

Evidence for a Blood Ganglion Barrier in the Superior Cervical Ganglion of the Rat

1982 ◽  
Vol 40 ◽  
pp. 204-204
Author(s):  
D. M. DePace
Keyword(s):  
Blood Vessels ◽  
Superior Cervical Ganglion ◽  
Peripheral Nerves ◽  
Time Schedule ◽  
Transmission Electron ◽  
Cervical Ganglion ◽  
The Central Nervous System ◽  
Cervical Ganglia ◽  
Capillary Circulation ◽  
And Control

The majority of blood vessels in the superior cervical ganglion possess a continuous endothelium with tight junctions. These same features have been associated with the blood brain barrier of the central nervous system and peripheral nerves. These vessels may perform a barrier function between the capillary circulation and the superior cervical ganglion. The permeability of the blood vessels in the superior cervical ganglion of the rat was tested by intravenous injection of horseradish peroxidase (HRP). Three experimental groups of four animals each were given intravenous HRP (Sigma Type II) in a dosage of.08 to.15 mg/gm body weight in.5 ml of.85% saline. The animals were sacrificed at five, ten or 15 minutes following administration of the tracer. Superior cervical ganglia were quickly removed and fixed by immersion in 2.5% glutaraldehyde in Sorenson's.1M phosphate buffer, pH 7.4. Three control animals received,5ml of saline without HRP. These were sacrificed on the same time schedule. Tissues from experimental and control animals were reacted for peroxidase activity and then processed for routine transmission electron microscopy.

Some quantitative applications of vascular corrosion casting

1992 ◽  
Vol 50 (1) ◽  
pp. 738-739
Author(s):  
Fred E. Hossler
Keyword(s):  
Blood Vessels ◽  
Nuclear Orientation ◽  
Three Dimensional ◽  
Surrounding Tissue ◽  
Confocal Laser ◽  
Corrosion Casting ◽  
Venous Valve ◽  
Casting Technique ◽  
Low Viscosity ◽  
Quantitative Measurements

Preparation of replicas of the complex arrangement of blood vessels in various organs and tissues has been accomplished by infusing low viscosity resins into the vasculature. Subsequent removal of the surrounding tissue by maceration leaves a model of the intricate three-dimensional anatomy of the blood vessels of the tissue not obtainable by any other procedure. When applied with care, the vascular corrosion casting technique can reveal fine details of the microvasculature including endothelial nuclear orientation and distribution (Fig. 1), locations of arteriolar sphincters (Fig. 2), venous valve anatomy (Fig. 3), and vessel size, density, and branching patterns. Because casts faithfully replicate tissue vasculature, they can be used for quantitative measurements of that vasculature. The purpose of this report is to summarize and highlight some quantitative applications of vascular corrosion casting. In each example, casts were prepared by infusing Mercox, a methyl-methacrylate resin, and macerating the tissue with 20% KOH. Casts were either mounted for conventional scanning electron microscopy, or sliced for viewing with a confocal laser microscope.

Innervation of endoneurial microvessels in human sural nerve

1992 ◽  
Vol 50 (1) ◽  
pp. 920-921
Author(s):  
John L. Beggs ◽  
Peter C. Johnson ◽  
Astrid G. Olafsen ◽  
C. Jane Watkins
Keyword(s):  
Blood Flow ◽  
Blood Vessels ◽  
Blood Supply ◽  
Peripheral Nerves ◽  
Sural Nerve ◽  
Nerve Fibers ◽  
Arterial Supply ◽  
Autonomic Nerve ◽  
Vasa Nervorum ◽  
Endoneurial Blood Flow

The blood supply (vasa nervorum) to peripheral nerves is composed of an interconnected dual circulation. The endoneurium of nerve fascicles is maintained by the intrinsic circulation which is composed of microvessels primarily of capillary caliber. Transperineurial arterioles link the intrinsic circulation with the extrinsic arterial supply located in the epineurium. Blood flow in the vasa nervorum is neurogenically influenced (1,2). Although a recent hypothesis proposes that endoneurial blood flow is controlled by the action of autonomic nerve fibers associated with epineurial arterioles (2), our recent studies (3) show that in addition to epineurial arterioles other segments of the vasa nervorum are also innervated. In this study, we examine blood vessels of the endoneurium for possible innervation.

scholarly journals Predicting Student Performance Using Data Mining and Learning Analytics Techniques: A Systematic Literature Review

2020 ◽  
Vol 11 (1) ◽  
pp. 237
Author(s):  
Abdallah Namoun ◽  
Abdullah Alshanqiti
Keyword(s):  
Academic Success ◽  
Student Learning ◽  
Learning Outcomes ◽  
Student Performance ◽  
Student Outcomes ◽  
Predictive Analytics ◽  
Research Work ◽  
Supervised Machine Learning ◽  
Bibliographic Databases ◽  
Learning And Teaching

The prediction of student academic performance has drawn considerable attention in education. However, although the learning outcomes are believed to improve learning and teaching, prognosticating the attainment of student outcomes remains underexplored. A decade of research work conducted between 2010 and November 2020 was surveyed to present a fundamental understanding of the intelligent techniques used for the prediction of student performance, where academic success is strictly measured using student learning outcomes. The electronic bibliographic databases searched include ACM, IEEE Xplore, Google Scholar, Science Direct, Scopus, Springer, and Web of Science. Eventually, we synthesized and analyzed a total of 62 relevant papers with a focus on three perspectives, (1) the forms in which the learning outcomes are predicted, (2) the predictive analytics models developed to forecast student learning, and (3) the dominant factors impacting student outcomes. The best practices for conducting systematic literature reviews, e.g., PICO and PRISMA, were applied to synthesize and report the main results. The attainment of learning outcomes was measured mainly as performance class standings (i.e., ranks) and achievement scores (i.e., grades). Regression and supervised machine learning models were frequently employed to classify student performance. Finally, student online learning activities, term assessment grades, and student academic emotions were the most evident predictors of learning outcomes. We conclude the survey by highlighting some major research challenges and suggesting a summary of significant recommendations to motivate future works in this field.

scholarly journals Brain capillary structures of schizophrenia cases and controls show a correlation with their neuron structures

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Rino Saiga ◽  
Masayuki Uesugi ◽  
Akihisa Takeuchi ◽  
Kentaro Uesugi ◽  
Yoshio Suzuki ◽  
...  
Keyword(s):  
Blood Vessels ◽  
Structural Parameters ◽  
Three Dimensional ◽  
Superior Temporal Gyrus ◽  
Anterior Cingulate ◽  
Dimensional Structure ◽  
Constant Diameter ◽  
The Mean ◽  
Cartesian Coordinate ◽  
Micrometer Scale

AbstractBrain blood vessels constitute a micrometer-scale vascular network responsible for supply of oxygen and nutrition. In this study, we analyzed cerebral tissues of the anterior cingulate cortex and superior temporal gyrus of schizophrenia cases and age/gender-matched controls by using synchrotron radiation microtomography or micro-CT in order to examine the three-dimensional structure of cerebral vessels. Over 1 m of cerebral blood vessels was traced to build Cartesian-coordinate models, which were then used for calculating structural parameters including the diameter and curvature of the vessels. The distribution of vessel outer diameters showed a peak at 7–9 μm, corresponding to the diameter of the capillaries. Mean curvatures of the capillary vessels showed a significant correlation to the mean curvatures of neurites, while the mean capillary diameter was almost constant, independent of the cases. Our previous studies indicated that the neurites of schizophrenia cases are thin and tortuous compared to controls. The curved capillaries with a constant diameter should occupy a nearly constant volume, while neurons suffering from neurite thinning should have reduced volumes, resulting in a volumetric imbalance between the neurons and the vessels. We suggest that the observed structural correlation between neurons and blood vessels is related to neurovascular abnormalities in schizophrenia.

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