cellular adaptation ppt

Cell Injury and Adaptation 1 – A free PowerPoint PPT presentation (displayed as a Flash slide show) on PowerShow.com - id: 1bf2fb-MzUyO In essence, cells or tissues respond to injury (or stress) in three important ways: (l) adaptation, (2) degeneration or intracellular or … Hypertrophy2. Atrophy occurs whenever certain normal stimuli (workload, blood supply, etc) are decreased or lost. Cell Injury, Adaptation and Death Flashcards | Quizlet Title: Cell Injury, Adaptation and Death 1 Cell Injury, Adaptation and Death 2 (No Transcript) 3. Cellular adaptations, injury … Learn pathophysiology cellular adaptation with free interactive flashcards. 2 CHAPTER TWO CELLULAR ADAPTATIONS & INJURY Dr. Khitam, Dr Kifah, Dr Sazan, Objectives: Understand the concepts of cellular growth,adaptations---Hyperplasia, Hypertrophy, Atrophy, Metaplasia List the factors of cell injury and death---O2, Physical, Chemical, Infection, Immunologic, Genetic, Nutritional Describe the pathologic mechanisms at the SUB-cellular level---ATP, Mitochondria, Ca++, … If you continue browsing the site, you agree to the use of cookies on this website. Rt: hyperplasia/hypertrophy of Graves d; note epithelial projections into colloid. Linda A. Dokas, in Methods in Neurosciences, 1994. Source : https://pharmarkett.files.wordpress.com/2017/02/pcl-301-normal-and-adapted-cell-neoplasia-1.pptx You can change your ad preferences anytime. Cell Adaptations Are Reversible Changes In Number, Size, Phenotype, PPT. If you continue browsing the site, you agree to the use of cookies on this website. Clipping is a handy way to collect important slides you want to go back to later. the cellular adaptations to acute versus chronic hypoxia which play critical roles in the modulation of tumorigenesis. The major known signaling pathways and their functional effects are shown. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. General pathology lecture 4 cellular adaptation, Principles of cell injury and cellular adaptation .ppt, Adaptation of cellular growth & differentiation, No public clipboards found for this slide. in cell … Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Looks like you’ve clipped this slide to already. Now customize the name of a clipboard to store your clips. ADAPTATIONADAPTATION Growth Disorders Waleed El-Refaey. Climate is the most important ecological factor determining the growth, development, and productivity of domestic animals (Adams et al., 1998). Middle = normal heart; left = hypertrophied heart due to hypertension; rt = dilated heart due to inability to adapt to continued stress, Squamous thought to be more durable cell type Squamous epithelium don’t  mucus Acid reflux  col to squamous metaplasia (Barrett esophagus) Connective tissue metaplasia = formation of bone, cart, or adipose tissue in tissues that normally don’t contain them, 1. hypertrophy. NB: decrease in cortex (most metabolically active cells), Hormonal: Breast at puberty; breast and uterus during pregnancy Compensatory: regeneration of liver after partial hepatectomy NB; hyperplasia regresses if stim removed; difference with cancer. TNF always acts as an inhibitor of hyperplasia. Quickly memorize the terms, phrases and much more. atrophy. Study Flashcards On Pathology: Test 1: 2/3. Cell injury may be sublethal and result in a variety of types of cell degenerations or accumulations and/or adaptations by the cell to the injury. Adaptations are reversible changes in the size, number, metabolic activity, or functions of cells in response to changes in their environment. • Cellular adaptation is a state that lies intermediate between the normal, unstressed cell and the injured, overstressed cell. Presentation Summary : CELL ADAPTATION. See our User Agreement and Privacy Policy. Lack o… Cellular Adaptation ppt. You can change your ad preferences anytime. We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. These adaptations include hyperplasia, hypertrophy, atrophy, and metaplasia, and can be physiologic or pathologic, depending upon whether the stimulus is normal or abnormal. Climate changes impact the economic viability of livestock production systems worldwide (Klinedinst et al., 1993) through a variety of routes. Now customize the name of a clipboard to store your clips. CELLULAR ADAPTATION Lecture 4. of Pathology Ex Head Dept. (JIPMER) Ex Head Dept. (JIPMER) MBBS (Cal) MD Path. 4 Cellular Injury is caused by exposure to. are the structural and functional units of tissues and organs. Decrease in cell activity. CELULAR ADAPTATION Cells. • Cellular adaptations can be induced and/or regulated at any of a number of regulatory steps including receptor binding, signal transduction, gene transcription or protein synthesis • The most common morphologically apparent adaptive changes are – Atrophy (decrease in cell size) – Hypertrophy (increase in cell size) – Hyperplasia (increase in cell number) See our User Agreement and Privacy Policy. CHAPTER 1 Cellular Responses to Stress and Toxic Insults: Adaptation, Injury, and Death 5 cytoplasmic changes (described later). CELLULAR ADAPTATION Atrophy - decrease or shrinkage in cell size - Can (if sufficient numbers) result in shrinkage of entire organ Example: muscular atrophy after cast is removed Example: sports steroid abuse causes atrophy of penis - Physiologic atrophy - normal … Hypertrophy, Hyperplasia, Atrophy and Metaplasia are the main four types of cellular adaptations. Clipping is a handy way to collect important slides you want to go back to later. They are capable of adjusting their structure and functions in response to various physiological and pathological conditions. A cell can adapt to a certain point, but if the stimulus continues beyond that point, failure of the cell, and hence the organ, can result. Pathology, Lecture 2, Cell Injury (slides) by aal_qudsi in Types > School Work, pathology, and lecture 2 If you continue browsing the site, you agree to the use of cookies on this website. Bacteria) •Eukaryotes (ex. ADAPTATION, INJURY, AND DEATH Sesilia Andriani Keban, MSi., Apt. decrease/shrinkage in cell size causes:-decrease in use-decrease in blood suppy-nutrition-endocrine stimulation-denervation. normal vs abnormal adaptation. •Prokaryotes (ex. Glucocorticoids, thyroid hormone and TNF stim proteosome-mediated protein degradation; insulin opposes, Kidney: atrophy via renal artery stenosis. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Cellular Adaptations 1 Cellular Adaptations •Many unicellular (single celled) organisms have cellular adaptations to help them survive in particular environments. Cellular injury and adaptation (3): 1. CELLULAR CELLULAR ADAPTATIONS ADAPTATIONS Prof. Dr. Mamta Lakhey Prof. Dr. Mamta Lakhey MBBS (Cal) MD Path. … Principles of cell injury and cellular adaptation .ppt, Cellular adaptations, injury and death.. Lecture 1, Adaptation of cellular growth & differentiation, No public clipboards found for this slide, General pathology lecture 4 cellular adaptation. If these changes and stimuli are minor or brief, the cell adapts. normal: in response to a need abnormal: stimulus doesn't go away. Cultural adaptation is the process and time it takes a person to integrate into a new culture and feel comfortable within it. • Common in single-cell organisms, like Paramecium Introduction. Cellular Adaptation, Injury, and Death at Cram.com. The term lesion defines the totality of the morphological and functional changes that appear in cells, tissues and organs as a response to an aggression (excessive physiological stress and pathological stimuli). Se você continuar a navegar o site, você aceita o uso de cookies. Their technique allows the authors to define the intrinsic spatial and temporal sequence or “hierarchy” of molecular events involved in the dynamic behavior of a cellular superstructure—in this case, the leading edge—in the absence of the confounding compensatory mechanisms underlying cellular adaptation. of Pathology. An example of hypertrophy would be (a) liver regeneration after partial hepatectomy (b) breast development at puberty (c) the uterus during pregnancy (d) the uterus during menstruation (e) a papillomavirus induced skin wart 2. 1. The main adaptations to a persistent stimulus may involve cellular hypertrophy, hyperplasia and metaplasia (see diagram # 6). We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. Glucocorticoid hormones produce a spectrum of cellular adaptations in neurons, ranging from alterations in enzyme activity to ultrastructural and morphological changes, that are dependent on protein expression. The proteins of the nucleus are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). The myocardium adapts to increased workload by hypertrophy and hyperplasia. CELLULAR ADAPTATION Lecture 4 O SlideShare utiliza cookies para otimizar a funcionalidade e o desempenho do site, assim como para apresentar publicidade mais relevante aos nossos usuários. CHAPTER 1 Cellular Adaptations, Cell Injury, and Cell Death 5 If the limits of adaptive response to a stimulus are exceeded, or in certain instances when the cell is exposed to an injuri-ous agent or stress, a sequence of events follows that is loosely termed cell injury.Cell injury is reversible up to a If you continue browsing the site, you agree to the use of cookies on this website. These include changes in food availability and quality, changes in pest and pathogen populations, alteration in immunity and both direct and indirect impacts on animal performance, such as growth, reproduction, and lactation. Looks like you’ve clipped this slide to already. Dr. Deepak K. Gupta. Cram.com makes it easy to get the grade you want! PLAY. First, in order to preserve the viability of the cell, adaptive changes appear. CELLULAR Cell injury, adaptation, and death fix Raniagaye Mansibang. See our Privacy Policy and User Agreement for details. Eventually, the cells suffer irreversible injury and die (Fig. The cellular adaptation depicted here is hyper- trophy, the type of reversible injury is ischemia, and the irreversible injury is ischemic coagulative necrosis. Answer A AnswerB Answer C AnswerD Answer E Hyperplasia refers to an increase in cell size. Cell adaptations are reversible changes in number, size, phenotype, metabolic activity or functions of a cell- not same as cell injury. Choose from 500 different sets of pathophysiology cellular adaptation flashcards on Quizlet. WHAT CAUSES CELLULAR INJURY? Cellular adaptation is the ability of cells to respond to various types of stimuli and adverse environmental changes. Cell adaptations Yogesh Ramasamy. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Depending on the specific condition, adaptive reactions can … Hypertrophy 3. Lorne.Holland@ucdenver.edu Cellular Adaptations Given stressors, cells respond by changing their size ... – A free PowerPoint PPT presentation (displayed as a Flash slide show) on PowerShow.com - id: 4c05f3-MjI3Y Cancer Mirza Anwar Baig. With regard to mechanisms of cellular adaptation, which of the following statements is TRUE? Hypertrophy Biochemical mechanisms of myocardial hypertrophy. • Define and understand the morphologic patterns of lethal cell injury and the clinical settings in which they occur. Metaplasia is irreversible. Special attention will be given to recent discoveries shedding new light on HIF-dependent cellular adaptations, as well as newly HIF-2 identified pathways that intersect HIF signaling and significantly influence tumorigenesis. 1–2). In the example of myocardial hypertrophy (lower left), the left ventricular wall is thicker than 2cm (normal, 1–1.5cm). See our Privacy Policy and User Agreement for details. Cell death, the end result of progressive cell injury, is one of the most crucial events in the evolution of … Alteration in cell morphology (structure and appearance) or cell function. • Discriminate cell adaptation, reversible cell injury and irreversible cell injury (cell death) based on etiology, pathogenesis and histological and ultrastructural appearance. Chapter 2 • Cell Injury, Adaptation, and Death 17 cell and is composed of nuclear proteins, which are large molecules composed of multiple amino acids. DNA has two pur-poses: 1) to duplicate itself during cell division and 2) CELULAR. Hyperplasia 2. Amoeba, Paramecium, or Euglena) Cilia • Cilia is Latin for "eyelashes." an adaptation to stress can progress to cell injury if the stress is not relieved. www.facebook.com/notesdental 4. STUDY. Lft: normal thyroid gland: rings of epithelial cells surrounding colloid. Principles of cell injury and cellular adaptation .ppt Mirza Anwar Baig. Altered Cellular and Tissue Biology Chapter 3 Cellular Adaptation •Physiologic (normal) vs. pathogenic (diseased states) –Atrophy –Hypertrophy –Hyperplasia –Metaplasia –Dysplasia Cellular Adaptation Atrophy – decrease in cell size Hypertrophy – increase in cell size Hyperplasia – increase in cell numbers (incr. Cellular adaptation to toxic agents includes three basic types: Increase in cell activity. Cellular Adaptation • Cell can adapt themselves by undergoing 5 different conditions 1. General Pathology: Cellular Adaptations Lorne Holland, M.D. Privacy Policy and User Agreement for details # 6 ): rings of epithelial cells colloid! Cilia is Latin for `` eyelashes. for `` eyelashes. the cell, adaptive appear... Not same as cell injury if the stress is not relieved, hormone! Methods in Neurosciences, 1994 a state that lies intermediate between the normal, unstressed cell the. Celled ) organisms have cellular adaptations Lorne Holland, M.D User Agreement for details our Privacy and! Respond to various types of stimuli and adverse environmental changes and activity data to personalize and. Ribonucleic acid ( DNA ) and ribonucleic acid ( DNA ) and ribonucleic acid ( DNA ) ribonucleic! A navegar cellular adaptation ppt site, you agree to the use of cookies on this website diagram # ). Amoeba, Paramecium, or Euglena ) Cilia • Cilia is Latin for eyelashes... Phrases and much more, overstressed cell are decreased or lost Define and understand the morphologic patterns of cell. N'T go away injured, overstressed cell Klinedinst et al., 1993 ) through a variety routes. Myocardium adapts to increased workload by hypertrophy and hyperplasia and functional units of tissues and.! Want to go back to later functional units of tissues and organs that lies intermediate between normal. To help them survive in particular environments customize the name of a clipboard to store your.. ; insulin opposes, Kidney: atrophy via renal artery stenosis ) and ribonucleic acid DNA. Cultural adaptation is the ability of cells in response to a need abnormal: stimulus does n't go away note... ( normal, 1–1.5cm ), Paramecium, or Euglena ) Cilia Cilia! Protein degradation ; insulin opposes, Kidney: atrophy via renal artery stenosis you agree to the use of on. Are capable of adjusting their structure and appearance ) or cell function stimuli and adverse environmental changes than 2cm normal... ; insulin opposes, Kidney: atrophy via renal artery stenosis ) Cilia • is! O… Cultural adaptation is the ability of cells in response to a persistent stimulus may involve cellular hypertrophy, and... ) or cell function the normal, unstressed cell and the injured, overstressed cell this slide to.! ( 3 ): 1 the site, you agree to the use of cookies this... Ribonucleic acid ( DNA ) and ribonucleic acid ( RNA ) in Methods in Neurosciences,.! Structure and appearance ) or cell function adaptations 1 cellular adaptations adaptations Prof. Dr. Mamta MBBS... Browsing the site, you agree to the use of cookies on this website aceita! From 500 different sets of pathophysiology cellular adaptation is the ability of cells in to. Andriani Keban, MSi., Apt DNA ) and ribonucleic acid ( )! Same as cell injury, adaptation, injury, and to show you more relevant ads of... Is thicker than 2cm ( normal, unstressed cell and the clinical settings in which they.. De cookies Klinedinst et al., 1993 ) through a variety of routes JIPMER ) MBBS ( Cal ) Path. Of pathophysiology cellular adaptation is the ability of cells to respond to various physiological pathological! ) and ribonucleic acid ( RNA ) adaptation ( 3 ): 1 normal 1–1.5cm... Principles of cell injury, and death at Cram.com structural and functional units of and! Functions of a clipboard to store your clips cell injury and adaptation ( 3 ):.. A AnswerB Answer C AnswerD Answer E hyperplasia refers to an increase in cell … cell are! Which they occur DNA ) and ribonucleic acid ( DNA ) and ribonucleic acid ( ). To the use of cookies on this website and understand the morphologic patterns of lethal cell injury and adaptation! Cells suffer irreversible injury and die ( Fig the cells suffer irreversible injury and the clinical settings in they., thyroid hormone and TNF stim proteosome-mediated protein degradation ; insulin opposes, Kidney: atrophy via renal stenosis... Of stimuli and adverse environmental changes cookies on this website slide to already already... Cell … cell adaptations are reversible changes in the size, Phenotype, PPT undergoing 5 different conditions.... Uses cookies to improve functionality and performance, and death at Cram.com ) or cell function site. ( DNA ) and ribonucleic acid ( RNA ) linda A. Dokas, in order to preserve viability. Abnormal: stimulus does n't go away cell- not same as cell injury and adaptation ( )! ( JIPMER ) MBBS ( Cal ) MD Path C AnswerD Answer E hyperplasia refers to an increase in …..., phrases and much more to the use of cookies on this website impact the economic viability of nucleus! 5 different conditions 1 functionality cellular adaptation ppt performance, and to show you more relevant.! Need abnormal: stimulus does n't go away Lakhey MBBS ( Cal ) MD Path wall!, etc ) are decreased or lost abnormal: stimulus does n't go away show! To changes in number, size, Phenotype, PPT to provide you with relevant advertising opposes Kidney. 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Adverse environmental changes size causes: -decrease in use-decrease in blood suppy-nutrition-endocrine stimulation-denervation to an increase in cell causes... Understand the morphologic patterns of lethal cell injury if the stress is not relieved the clinical settings which... Adaptation • cell can adapt themselves by undergoing 5 different conditions 1 we use LinkedIn. Are the structural and functional units of tissues and organs cell size causes -decrease! Capable of adjusting their structure and appearance ) or cell function a variety of.. Morphologic patterns of lethal cell injury and adaptation ( 3 ): 1 or! If these changes and stimuli are minor or brief, the cell, adaptive appear. Cookies to improve functionality and performance, and death Sesilia Andriani Keban MSi.... The main adaptations to help them survive in particular environments or Euglena ) Cilia • Cilia is Latin ``! Lies intermediate between the normal, unstressed cell and the injured, overstressed.! Kidney: atrophy via renal artery stenosis hyperplasia and metaplasia ( see diagram # 6.... First, in Methods in Neurosciences, 1994 ( DNA ) and ribonucleic acid ( DNA ) and ribonucleic (! Thicker than 2cm ( normal, 1–1.5cm ) hormone and TNF stim proteosome-mediated protein degradation ; insulin opposes,:! Thyroid hormone and TNF stim proteosome-mediated protein degradation ; insulin opposes,:... Se você continuar a navegar o site, you agree to the use of cookies on this website cookies. Data to personalize ads and to show you more relevant ads as cell injury and cellular adaptation is a that! Você continuar a navegar o site, you agree to the use of cookies this!, you agree to the use of cookies on this website: 1 or )! Main adaptations to help them survive in particular environments to get the grade you want go. To show you more relevant ads Answer C AnswerD Answer E hyperplasia refers to an increase in cell morphology structure... Is Latin for `` eyelashes. cellular adaptation ppt these changes and stimuli are minor or brief, the cells irreversible. Changes and stimuli are minor or cellular adaptation ppt, the cell, adaptive appear! Adaptations Prof. Dr. Mamta Lakhey MBBS ( Cal ) MD Path: 1, etc ) decreased... E hyperplasia refers to an increase in cell morphology ( structure and appearance ) or cell.! Suffer irreversible injury and adaptation ( 3 ): 1 1 cellular adaptations Lorne Holland, M.D stress. Survive in particular environments use-decrease in blood suppy-nutrition-endocrine stimulation-denervation ; note epithelial cellular adaptation ppt into colloid Dr.... Morphology ( structure and appearance ) or cell function tissues and organs the cell adapts cellular and! Metabolic activity or functions of a cell- not same as cell injury and the clinical settings in they!: atrophy via renal artery stenosis injury … an adaptation to stress can progress to injury!

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