What exactly is a prokaryote? Why are they so important in the scientific universe? To the amazement of many‚ prokaryotes are some of the most important organisms on Earth‚ and may have been the first to ever thrive on planet Earth. From what modern scientists know‚ prokaryotes were the first organisms on Earth‚ surviving millions of years on the treacherous terrain that was early Earth before humans ever came into existence. Prokaryotes are known for their incredible abilities to survive in the
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Neuroimaging in traumatic brain injury 1.COMPUTED TOMOGRAPHY (CT) : While severe and moderate traumatic head and brain injuries often mandate head CT‚ several clinical scales require specific criteria in determining the need for neuroimaging after a mild TBI. These include the New Orleans Criteria (NOC) and the Canadian CT Head Rule (CCHR).(45) Both are relatively straight forward and use seven criteria readily obtained in the setting and evaluation of mild TBI. A head-to-head comparison
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REPRODUCTIVE SYSTEM Reproductive System A system of sex organs within an organism which work together for the purpose of sexual reproduction. Many nonliving substances such as fluids‚ hormones‚ and pheromones are also important accessories to there productive system. Sexual reproduction produces new individuals - Gametes (sperm & egg) formed by testes and ovaries - Fertilization produces one cell (a zygote)with one set of chromosomes from each parent - Creates genetic variation . Gonads produce
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intensive study of the structure and function of the human body. The emphasis is homeostasis and the interrelationship among systems with discussions on selected pathologies. The first semester of the two part series covers the topics chemistry‚ histology‚ genetics and inheritance‚ and the integumentary‚ skeletal‚ muscular‚ digestive‚ and reproductive systems. General objectives: 1. To discuss a basic understanding and working knowledge of the human body. 2. To outline the concepts of homeostasis
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Introduction The development of thrombus is an important part of the transition of the coronary lesions from a stable to an unstable state which is considered the substrate for acute coronary syndromes (ACS). Angiographic and post-mortem findings confirm this (1‚ 2). The above consists the pathophysiological background of recent studies that had as an objective to prove the efficacy of rivaroxaban in recent ACS (3). Rivaroxaban is an anti-Xa antithrombotic factor that was firstly studied for the
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Digestive System Study Guide 1. Define the term digestion and explain its significance. The chemical and mechanical process of breaking down food and its absorption. Its essential to maintaining life. 2. Distinguish between mechanical digestion and chemical digestion. Chemical digestion is where complex food molecules are broken down to the basic building blocks by enzymes. Mechanical digestion is chewing‚ churning and segmentation. 3. Discuss the five digestive processes that overview the many functions
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Physiology I Study Guide for Cumulative Final Exam 1. Know the Student Learning Objectives given on the course syllabus. 2. Be able to define: anatomy chemistry positive feedback anabolism physiology biochemistry negative feedback catabolism histology homeostasis metabolism 3. Be able to identify specific examples of homeostasis and negative feedback regulation with blood glucose and calcium levels and blood pressure control. 4. Be able to place each level of structural organization in
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What is the integumentary system? It is classified by the skin and all the accessory structures‚ which include hair‚ glands‚ and nails (Seeley’s‚ 2016). The main functions of the integumentary system are to protect our body from everything. The skin and all the accessory structures also help the body retain body fluids‚ protect against disease‚ eliminate waste products and regulate body temperature. When we think of the gross anatomy of the integumentary system‚ we are asking ourselves what we can
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Key Terms & Concepts Anatomy and Physiology 1H06‚ W2012 You should be able to describe and/or demonstrate an understanding of the following: *this is not an exhaustive list… Cardiovascular Anatomy • Heart: Location (Mediastinum)‚ Base vs Apex‚ Major Landmarks (SVC‚ IVC‚ Pulm. Trunk‚ Aorta) • Relational Anatomy: Structures Above‚ Below‚ Anterior & Posterior to Heart • Surface Features: Anterior & Posterior (Atria‚ Ventricles‚ Great Vessels‚ Sulci) • Sulci:
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E X E R C I S E 3 Neurophysiology of Nerve Impulses O B J E C T I V E S 1. To define the following terms: irritability‚ conductivity‚ resting membrane potential‚ polarized‚ sodium-potassium pump‚ threshold stimulus‚ depolarization‚ action potential‚ repolarization‚ hyperpolarization‚ absolute refractory period‚ relative refractory period‚ nerve impulse‚ compound nerve action potential‚ and conduction velocity. 2. To list at least four different stimuli capable of generating
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