Comparative Anatomy and Functional Morphology University of California at Berkeley Department of Integrative Biology (5 Units)
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Advanced Morphometric Techniques Applied to The
UNIVERSIDAD POLITÉCNICA DE MADRID ESCUELA TÉCNICA SUPERIOR DE INGENIEROS DE TELECOMUNICACIÓN ADVANCED MORPHOMETRIC TECHNIQUES APPLIED TO THE STUDY OF HUMAN BRAIN ANATOMY TESIS DOCTORAL Yasser Alemán Gómez Ingeniero en Tecnologías Nucleares y Energéticas Máster en Neurociencias Madrid, 2015 DEPARTAMENTO DE INGENIERÍA ELECTRÓNICA ESCUELA TÉCNICA SUPERIOR DE INGENIEROS DE TELECOMUNICACIÓN PHD THESIS ADVANCED MORPHOMETRIC TECHNIQUES APPLIED TO THE STUDY OF HUMAN BRAIN ANATOMY AUTHOR Yasser Alemán Gómez Ing. en Tecnologías Nucleares y Energéticas MSc en Neurociencias ADVISOR Manuel Desco Menéndez, MScE, MD, PhD Madrid, 2015 Departamento de Ingeniería Electrónica Escuela Técnica Superior de Ingenieros de Telecomunicación Universidad Politécnica de Madrid Ph.D. Thesis Advanced morphometric techniques applied to the study of human brain anatomy Tesis doctoral Técnicas avanzadas de morfometría aplicadas al estudio de la anatomía cerebral humana Author: Yasser Alemán Gómez Advisor: Manuel Desco Menéndez Committee: Andrés Santos Lleó Universidad Politécnica de Madrid, Madrid, Spain Javier Pascau Gonzalez-Garzón Universidad Carlos III de Madrid, Madrid, Spain Raymond Salvador Civil FIDMAG – Germanes Hospitalàries, Barcelona, Spain Pablo Campo Martínez-Lage Universidad Autónoma de Madrid, Madrid, Spain Juan Domingo Gispert López Universidad Pompeu Fabra, Barcelona, Spain María Jesús Ledesma Carbayo Universidad Politécnica de Madrid, Madrid, Spain Juan José Vaquero López Universidad Carlos III de Madrid, Madrid, Spain Esta Tesis ha sido desarrollada en el Laboratorio de Imagen Médica de la Unidad de Medicina y Cirugía Experimental del Instituto de Investigación Sanitaria Gregorio Marañón y en colaboración con el Servicio de Psiquiatría del Niño y del Adolescente del Departamento de Psiquiatría del Hospital General Universitario Gregorio Marañón de Madrid, España. Tribunal nombrado por el Sr. -
A Practical Introduction to Landmark-Based Geometric Morphometrics
A PRACTICAL INTRODUCTION TO LANDMARK-BASED GEOMETRIC MORPHOMETRICS MARK WEBSTER Department of the Geophysical Sciences, University of Chicago, 5734 South Ellis Avenue, Chicago, IL 60637 and H. DAVID SHEETS Department of Physics, Canisius College, 2001 Main Street, Buffalo, NY 14208 ABSTRACT.—Landmark-based geometric morphometrics is a powerful approach to quantifying biological shape, shape variation, and covariation of shape with other biotic or abiotic variables or factors. The resulting graphical representations of shape differences are visually appealing and intuitive. This paper serves as an introduction to common exploratory and confirmatory techniques in landmark-based geometric morphometrics. The issues most frequently faced by (paleo)biologists conducting studies of comparative morphology are covered. Acquisition of landmark and semilandmark data is discussed. There are several methods for superimposing landmark configu- rations, differing in how and in the degree to which among-configuration differences in location, scale, and size are removed. Partial Procrustes superimposition is the most widely used superimposition method and forms the basis for many subsequent operations in geometric morphometrics. Shape variation among superimposed con- figurations can be visualized as a scatter plot of landmark coordinates, as vectors of landmark displacement, as a thin-plate spline deformation grid, or through a principal components analysis of landmark coordinates or warp scores. The amount of difference in shape between two configurations can be quantified as the partial Procrustes distance; and shape variation within a sample can be quantified as the average partial Procrustes distance from the sample mean. Statistical testing of difference in mean shape between samples using warp scores as variables can be achieved through a standard Hotelling’s T2 test, MANOVA, or canonical variates analysis (CVA). -
Systematic Morphology of Fishes in the Early 21St Century
Copeia 103, No. 4, 2015, 858–873 When Tradition Meets Technology: Systematic Morphology of Fishes in the Early 21st Century Eric J. Hilton1, Nalani K. Schnell2, and Peter Konstantinidis1 Many of the primary groups of fishes currently recognized have been established through an iterative process of anatomical study and comparison of fishes that has spanned a time period approaching 500 years. In this paper we give a brief history of the systematic morphology of fishes, focusing on some of the individuals and their works from which we derive our own inspiration. We further discuss what is possible at this point in history in the anatomical study of fishes and speculate on the future of morphology used in the systematics of fishes. Beyond the collection of facts about the anatomy of fishes, morphology remains extremely relevant in the age of molecular data for at least three broad reasons: 1) new techniques for the preparation of specimens allow new data sources to be broadly compared; 2) past morphological analyses, as well as new ideas about interrelationships of fishes (based on both morphological and molecular data) provide rich sources of hypotheses to test with new morphological investigations; and 3) the use of morphological data is not limited to understanding phylogeny and evolution of fishes, but rather is of broad utility to understanding the general biology (including phenotypic adaptation, evolution, ecology, and conservation biology) of fishes. Although in some ways morphology struggles to compete with the lure of molecular data for systematic research, we see the anatomical study of fishes entering into a new and exciting phase of its history because of recent technological and methodological innovations. -
Bacterial Size, Shape and Arrangement & Cell Structure And
Lecture 13, 14 and 15: bacterial size, shape and arrangement & Cell structure and components of bacteria and Functional anatomy and reproduction in bacteria Bacterial size, shape and arrangement Bacteria are prokaryotic, unicellular microorganisms, which lack chlorophyll pigments. The cell structure is simpler than that of other organisms as there is no nucleus or membrane bound organelles.Due to the presence of a rigid cell wall, bacteria maintain a definite shape, though they vary as shape, size and structure. When viewed under light microscope, most bacteria appear in variations of three major shapes: the rod (bacillus), the sphere (coccus) and the spiral type (vibrio). In fact, structure of bacteria has two aspects, arrangement and shape. So far as the arrangement is concerned, it may Paired (diplo), Grape-like clusters (staphylo) or Chains (strepto). In shape they may principally be Rods (bacilli), Spheres (cocci), and Spirals (spirillum). Size of Bacterial Cell The average diameter of spherical bacteria is 0.5- 2.0 µm. For rod-shaped or filamentous bacteria, length is 1-10 µm and diameter is 0.25-1 .0 µm. E. coli , a bacillus of about average size is 1.1 to 1.5 µm wide by 2.0 to 6.0 µm long. Spirochaetes occasionally reach 500 µm in length and the cyanobacterium Accepted wisdom is that bacteria are smaller than eukaryotes. But certain cyanobacteria are quite large; Oscillatoria cells are 7 micrometers diameter. The bacterium, Epulosiscium fishelsoni , can be seen with the naked eye (600 mm long by 80 mm in diameter). One group of bacteria, called the Mycoplasmas, have individuals with size much smaller than these dimensions. -
Comparative Anatomy: for Educators and Caregivers
ABOUT THIS PACKET COMPARATIVE ANATOMY: FOR EDUCATORS AND CAREGIVERS INTRODUCTION This Burke Box packet uses the basic principles of comparative anatomy to lead students through a critical thinking investigation. Learners and educators can explore digital specimen cards, view a PowerPoint lesson, and conduct independent research through recommended resources before filling in a final comparative Venn diagram. By the end of the packet, students will use a comparative anatomy lens to independently answer the question: are bats considered birds or mammals? BACKGROUND The study of comparative anatomy can be traced back to investigations made by philosophers in ancient Greece. Using firsthand observations and accounts by hunters, farmers, and doctors, Aristotle and other Greek philosophers made detailed anatomical comparisons between species. The field of comparative anatomy has contributed to a better understanding of the evolution of species. Once thought to be a linear pattern, studies utilizing the principles of comparative anatomy identified shared ancestors among many species, indicating evolution occurs in a branching manner. Comparative anatomy has been used to prove relationships between species previously thought unrelated, or disprove relationships between species that share similar features but are not biologically related. Comparative anatomy can study internal organs and soft tissues, skeletal structures, embryonic phases and DNA. Researchers look for homologous structures, or structures within species that are the same internally. These structures indicate shared ancestry and an evolutionary relationships between species. Researchers also look for analogous structures, which may look similar at a glance but have different internal structures. Analogous structures indicate the species have divergent ancestry. Vestigial structures are also important in comparative anatomy. -
Evolution of the Muscular System in Tetrapod Limbs Tatsuya Hirasawa1* and Shigeru Kuratani1,2
Hirasawa and Kuratani Zoological Letters (2018) 4:27 https://doi.org/10.1186/s40851-018-0110-2 REVIEW Open Access Evolution of the muscular system in tetrapod limbs Tatsuya Hirasawa1* and Shigeru Kuratani1,2 Abstract While skeletal evolution has been extensively studied, the evolution of limb muscles and brachial plexus has received less attention. In this review, we focus on the tempo and mode of evolution of forelimb muscles in the vertebrate history, and on the developmental mechanisms that have affected the evolution of their morphology. Tetrapod limb muscles develop from diffuse migrating cells derived from dermomyotomes, and the limb-innervating nerves lose their segmental patterns to form the brachial plexus distally. Despite such seemingly disorganized developmental processes, limb muscle homology has been highly conserved in tetrapod evolution, with the apparent exception of the mammalian diaphragm. The limb mesenchyme of lateral plate mesoderm likely plays a pivotal role in the subdivision of the myogenic cell population into individual muscles through the formation of interstitial muscle connective tissues. Interactions with tendons and motoneuron axons are involved in the early and late phases of limb muscle morphogenesis, respectively. The mechanism underlying the recurrent generation of limb muscle homology likely resides in these developmental processes, which should be studied from an evolutionary perspective in the future. Keywords: Development, Evolution, Homology, Fossils, Regeneration, Tetrapods Background other morphological characters that may change during The fossil record reveals that the evolutionary rate of growth. Skeletal muscles thus exhibit clear advantages vertebrate morphology has been variable, and morpho- for the integration of paleontology and evolutionary logical deviations and alterations have taken place unevenly developmental biology. -
Morphometric Analysis of Brain in Newborn with Congenital Diaphragmatic Hernia
brain sciences Article Morphometric Analysis of Brain in Newborn with Congenital Diaphragmatic Hernia Martina Lucignani 1, Daniela Longo 2, Elena Fontana 2, Maria Camilla Rossi-Espagnet 2,3, Giulia Lucignani 2, Sara Savelli 4, Stefano Bascetta 4, Stefania Sgrò 5, Francesco Morini 6, Paola Giliberti 6 and Antonio Napolitano 1,* 1 Medical Physics Department, Bambino Gesù Children’s Hospital, IRCCS, 00165 Rome, Italy; [email protected] 2 Neuroradiology Unit, Imaging Department, Bambino Gesù Children’s Hospital, IRCCS, 00165 Rome, Italy; [email protected] (D.L.); [email protected] (E.F.); [email protected] (M.C.R.-E.); [email protected] (G.L.) 3 NESMOS Department, Sant’Andrea Hospital, Sapienza University, 00189 Rome, Italy 4 Imaging Department, Bambino Gesù Children’s Hospital and Research Institute, 00165 Rome, Italy; [email protected] (S.S.); [email protected] (S.B.) 5 Department of Anesthesia and Critical Care, Bambino Gesù Children’s Hospital, IRCCS, 00165 Rome, Italy; [email protected] 6 Department of Medical and Surgical Neonatology, Bambino Gesù Children’s Hospital, IRCCS, 00165 Rome, Italy; [email protected] (F.M.); [email protected] (P.G.) * Correspondence: [email protected]; Tel.: +39-333-3214614 Abstract: Congenital diaphragmatic hernia (CDH) is a severe pediatric disorder with herniation of abdominal viscera into the thoracic cavity. Since neurodevelopmental impairment constitutes a common outcome, we performed morphometric magnetic resonance imaging (MRI) analysis on Citation: Lucignani, M.; Longo, D.; CDH infants to investigate cortical parameters such as cortical thickness (CT) and local gyrification Fontana, E.; Rossi-Espagnet, M.C.; index (LGI). -
Structure and Morphology Micro-‐Level Morphology
Chapter 2 Majority of illustraons in this presentaon are from Biological Psychology 4th edi3on (© Sinuer Publicaons) Structure and Morphology 1. To understand behavior, as it relates to many processes in the brain, it is important to study the structure or morphology of the brain. 2. We can study the structure of brain at the micro level, looking at small units like neurons, dendrites and receptors etc. or at the macro level, looking at the regions, areas, and nuclei and/or study the brain. 2 Micro-Level Morphology 1. To study the morphology of brain at the micro level tools and techniques had to be developed. One such development was the inven3on of the op3cal microscope (Leeuwenhoek, 17th century). 2. More recent developments include electron microscope with increased magnificaon. 3 1 Micro-Level Morphology 3. Looking at he brain meant cung the brain, staining it, and make them worthy of the microscope. Many different staining methods have developed. 4 Camillo Golgi 1. Golgi developed the silver method to stain the nerve 3ssue. 2. Believed that neurons connected in a (1737-1798 AD) “syncium”, by blending. This theory was called re3cular theory of neurons. 5 Ramón y Cajal 1. Cajal also used the silver method to stain the brain, but 2. Believed that neurons were separate and communicated through gaps (1852-1934) (synapse). This came to be known as the neuron doctrine. 6 2 Cells in Brain 7 Neurons There are 100 billion neurons in the human brain. Packed with 10 3mes more glial cells. Each neuron is divided into three parts; dendrites, cell body and axon. -
Evolutionary Morphology, Innovation, and the Synthesis of Evolutionary and Developmental Biology
Biology and Philosophy 18: 309–345, 2003. © 2003 Kluwer Academic Publishers. Printed in the Netherlands. Evolutionary Morphology, Innovation, and the Synthesis of Evolutionary and Developmental Biology ALAN C. LOVE Department of History and Philosophy of Science University of Pittsburgh CL 1017 Pittsburgh, PA 15260 U.S.A. E-mail: [email protected] Abstract. One foundational question in contemporary biology is how to ‘rejoin’ evolution and development. The emerging research program (evolutionary developmental biology or ‘evo- devo’) requires a meshing of disciplines, concepts, and explanations that have been developed largely in independence over the past century. In the attempt to comprehend the present separation between evolution and development much attention has been paid to the split between genetics and embryology in the early part of the 20th century with its codification in the exclusion of embryology from the Modern Synthesis. This encourages a characterization of evolutionary developmental biology as the marriage of evolutionary theory and embryology via developmental genetics. But there remains a largely untold story about the significance of morphology and comparative anatomy (also minimized in the Modern Synthesis). Functional and evolutionary morphology are critical for understanding the development of a concept central to evolutionary developmental biology, evolutionary innovation. Highlighting the discipline of morphology and the concepts of innovation and novelty provides an alternative way of conceptualizing the ‘evo’ and the ‘devo’ to be synthesized. Key words: comparative anatomy, developmental genetics, embryology, evolutionary developmental biology, innovation, morphology, novelty, synthesis, typology 1. Introduction and methodology ... problems concerned with the orderly development of the individual are unrelated to those of the evolution of organisms through time .. -
Comparative Anatomy of the Caudal Skeleton of Lantern Fishes of The
Revista de Biología Marina y Oceanografía Vol. 51, Nº3: 713-718, diciembre 2016 DOI 10.4067/S0718-19572016000300025 RESEARCH NOTE Comparative anatomy of the caudal skeleton of lantern fishes of the genus Triphoturus Fraser-Brunner, 1949 (Teleostei: Myctophidae) Anatomía comparada del complejo caudal de los peces linterna del género Triphoturus Fraser-Brunner, 1949 (Teleostei: Myctophidae) Uriel Rubio-Rodríguez1, Adrián F. González-Acosta1 and Héctor Villalobos1 1Instituto Politécnico Nacional, Departamento de Pesquerías y Biología Marina, CICIMAR-IPN, Av. Instituto Politécnico Nacional s/n, Col. Playa Palo de Santa Rita, La Paz, BCS, 23096, México. [email protected] Abstract.- The caudal skeleton provides important information for the study of the systematics and ecomorphology of teleostean fish. However, studies based on the analysis of osteological traits are scarce for fishes in the order Myctophiformes. This paper describes the anatomy of the caudal bones of 3 Triphoturus species: T. mexicanus (Gilbert, 1890), T. nigrescens (Brauer, 1904) and T. oculeum (Garman, 1899). A comparative analysis was performed on cleared and stained specimens to identify the differences and similarities of bony elements and the organization of the caudal skeleton among the selected species. Triphoturus mexicanus differs from T. oculeum in the presence of medial neural plates and a foramen in the parhypural, while T. nigrescens differs from their congeners in a higher number of hypurals (2 + 4 = 6) and the separation and number of cartilaginous elements. This osteological description of the caudal region allowed updates to the nomenclature of bony and cartilaginous elements in myctophids. Further, this study allows for the recognition of structural differences between T. -
Dynamic Allometry in Coastal Overwash Morphology
Earth Surf. Dynam., 8, 37–50, 2020 https://doi.org/10.5194/esurf-8-37-2020 © Author(s) 2020. This work is distributed under the Creative Commons Attribution 4.0 License. Dynamic allometry in coastal overwash morphology Eli D. Lazarus1, Kirstin L. Davenport1, and Ana Matias2 1Environmental Dynamics Lab, School of Geography and Environmental Science, University of Southampton, Highfield B44, Southampton, SO17 1BJ, UK 2Centre for Marine and Environmental Research, University of Algarve, Gambelas Campus, Faro, Portugal Correspondence: Eli D. Lazarus ([email protected]) Received: 25 July 2019 – Discussion started: 31 July 2019 Revised: 11 November 2019 – Accepted: 13 December 2019 – Published: 21 January 2020 Abstract. Allometry refers to a physical principle in which geometric (and/or metabolic) characteristics of an object or organism are correlated to its size. Allometric scaling relationships typically manifest as power laws. In geomorphic contexts, scaling relationships are a quantitative signature of organization, structure, or regularity in a landscape, even if the mechanistic processes responsible for creating such a pattern are unclear. Despite the ubiquity and variety of scaling relationships in physical landscapes, the emergence and development of these relationships tend to be difficult to observe – either because the spatial and/or temporal scales over which they evolve are so great or because the conditions that drive them are so dangerous (e.g. an extreme hazard event). Here, we use a physical experiment to examine dynamic allometry in overwash morphology along a model coastal barrier. We document the emergence of a canonical scaling law for length versus area in overwash deposits (washover). -
BIO-221 Comparative Anatomy
Bergen Community College Division of Mathematics, Science, and Technology Department of Biology and Horticulture Comparative Anatomy (BIO-221) General Course Syllabus Spring 2016 Course Title: Comparative Anatomy (BIO-221) Course Description: This course is a study of the body structures of some representative vertebrate animals and of their functional and evolutionary relationships. Laboratory exercises include detailed dissection of the Lamprey eel, the dogfish shark, the mud puppy, the cat and other animals. Prerequisites: BIO-101 General Biology I, BIO-203 General Biology II General Education No Course: Course Credits; 4.0 Hours per week: 6.0: 3 hours lecture and 3 hours lab Course Coordinator: Robert Dill Required Lecture Comparative Anatomy of the Vertebrates, Kent, George, C.V. Mosby Co., 9th Edition ISBN 0-07-303869-5 Textbook: Required Laboratory Atlas and Dissection Guide for Comparative Anatomy, Wischinitzer, Saul W. H. Freeman Co. Publisher, 6th. Ed. 2007 ISBN 9780716769590 Manual: Student Learning Objectives: The student will be able to: 1. Identify the basic concepts in comparative vertebrate anatomy and explain basic vertebrate characteristics. Assessment will be based on exam questions. 2. Identify and explain the anatomy and niche of the protochordates. Assessment will be based on exam questions. 3. Identify the major vertebrate groups and discuss the relationship between them. Assessment will be based on exam questions. 4. Identify the parts of the vertebrate integument and explain the relationship of this system between major vertebrate groups. Assessment will be based on exam questions. 5. Identify the parts of the vertebrate skeletal and explain the relationship of this system between major vertebrate groups.