Chapter 1 Overview Notes: You are to read the text’s chapter and look through the Powerpoint notes on Blackboard as well. Anatomy literally means “to cut” – tomy and “apart” – ana‚ since in the early days anatomists used cadavers to cut apart and see inside. Physiology literally means the “study of nature” so we study the nature or functions of the body systems. We have to understand that the structure of any body part – muscle cell contracts the organ‚ protein fibers contract the muscle
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difficult to survive in a given environment‚ humans would be able to adapt as their bodily systems are constantly balancing and changing to their adaptations. A reproduction advantage also links in to this as well. Thermoregulation as well as all homeostatic processes allow the body to constantly deal with change‚ by means of a ‘balancing act’. Over time‚ if these are able to continue‚ “an organism is able to inhabit a wider range of habitats and reproduce more successfully to maintain population.”
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INTRODUCTION TO PHYSIOLOGY AND HOMEOSTATIS PHYSIOLOGY 1.1 Intro to Physiology Physiology: the study of the functions of living things‚ how the human body works Two approaches explain the events that occur in body -purpose of the body process - mechanism in which the process occurs Physiologists view the body as a machine whose mechanisms of action can explained in terms of cause and effect sequences of physical and chemical processes. Physiology is closely related to anatomy: the
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Learning Objectives for Chapter 1 AN INTRODUCTION TO THE HUMAN BODY Education is for improving the lives of others and for leaving your community and world better than you found it. Marian Wright Edelman Define anatomy and physiology. -anatomy is the science of the structure and relationship of the structures. -physiology is the science of body functions (dhow it works) Describe the six levels of structural organization and give examples of each. Chemical - atoms and molecules Cellular - molecules
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Osmosis Rates in Artificial Cells Daniel George Department of Biology Grand Valley State University 1 Campus Drive Allendale‚ MI 49401 georged@mail.gvsu.edu Abstract The lab for this paper was conducted for the topic of osmosis‚ the movement of water from high to low concentration. Five artificial cells were created‚ each being filled with different concentrated solutions of sucrose. These artificial cells were placed in hypertonic‚ hypotonic‚ or isotonic solutions for a period of 90
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Lab Report 1: Cell Transport Mechanisms and Permeability Using PhysioEx 8.0 Introduction The purpose of these experiments is to examine the driving force behind the movement of substances across a selective or semiperpeable plasma membrane. Experiment simulations examine substances that move passively through a semipermeable membrane‚ and those that require active transport. Those that move passively through the membrane will do so in these simulations by facilitated
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What is the molecular weight of Na+? 22.99 2. What is the molecular weight of Cl-? 35.45 3. Which MWCO dialysis membranes allowed both of these ions through?50‚ 100 and 200 4. Which materials diffused from the left beaker to the right beaker Urea‚ NaCl and glucose diffused 5. Which did not? Why? Albumin‚ because it is too large to diffuse Activity 2: Simulating Dialysis 1. What happens to the urea concentration in the left beaker (the patient)? Its concentration gradient changes
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Currently we have an imbalance in our physicians since there are more specialty doctors than primary doctors. This may be because most medical students are choosing the specialist route over primary because of the drastic increase of income. However‚ if we were to shift our attention
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Introduction: Homeostasis is the tendency of the body to seek and maintain equilibrium‚ a state of balance‚ within its internal environment. Endotherms are “warm blooded” animals that produce and maintain their own internal body heat. Most mammals and a few birds‚ are endotherms; this is beneficial because the enzymes in the body that carry out metabolic processes have an optimum temperature at which they function‚ having the body constantly be‚ or be close to‚ this optimum internal temperature
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solutions. The freezing points of distilled water and saltwater were measured‚ and found to both be about 0 °C. The osmotic effects of different solutions on a dialysis bag and an egg membrane were observed and it was possible to distinguish between hypertonic and hypotonic solutions. Experiment and Observation: The first step in this
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