This causes systemic body circulation. To compare the two‚ both each have three semi-lunar cusps‚ which curve outward and into the opening of the receiving blood vessel. What separates the semilunar valves from the atrioventricular (AV) valves is that the semilunar valves contain no presence of papillary muscles or chordae tendineae. This is because pressure within the heart falls in this area‚ thereby forcing the semilunar valves to close on their own. The hearts is a prime member of the circulatory
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Chapter 19: Diseases of the Skin and Eyes; Wounds and Bites Question Type: Multiple Choice 1) The majority of organisms normal to the skin are: a) Gram-negative b) Gram-positive c) fungi d) viruses Answer: b Difficulty: Easy Learning Objective 1: LO 19.1 Review the anatomy of the skin and mucus membranes with regards to microbial defenses. Section Reference 1: Section 19.1 The Skin‚ Mucus Membranes‚ and Eyes 2) Which of the following is not considered resident microflora of the skin?
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Heart failure (HF) is a progressive disease which affects more than five million Americans (Yancy et al.‚ 2013). HF negatively impacts quality of life and it is associated with frequent hospitalizations and high mortality. Evidence-based practice guidelines aid health care professionals with treatment management and provide pathways to optimize individual patient care. The main goal of treatment is to slow the progression of the disease and control its symptoms. These pathways address all stages
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to choose: “Treatment options for recurrent breast cancer: 1. Surgery (radical or modified radical mastectomy‚ radiation therapy‚ or both. 2. Systematic chemotherapy or hormone therapy. 3. A clinical trial of trastuzumab (Herceptin) combined with systemic chemotherapy”(Natl. Cancer Institute). The type of breast cancer decides which treatment can be healing the disease. Moreover‚ breast cancer treatment divided by two types of therapy: “Any anti-cancer treatment used after surgery is called ADJUVANT
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Functions) o Heart Sounds: Orientation of Heart determines direction of Echo (Valve Closure) o Disease: Stenosis vs Prolapse; Murmur Cardiovascular Development • Postnatal (Adult) vs Fetal Circulation (where does vascular resistance differ and why?) • Fetal Circulation o Specializations: Placenta‚ Umbilical Veins‚ Ductus Venosus‚ Foramen Ovale‚ Ductus Arteriosus‚ Umbilical Arteries o What do they become in the adult? o Where does Oxy & Deoxy
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The effect of increasing substrate concentration on rate of an enzyme reaction. Enzymes are biological catalysts that lower a reactions activation energy making possible many of the reactions needed for life to exist. Enzymes have a high specificity which have been explained by many theories such as Fischer’s lock and key. Currently the most widely accepted theory is the induced fit hypothesis proposed by Koshland in 1958. This hypothesis solves some of the problems with the Lock and key theory
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Chapter 12: Cardiovascular System 12.1 3 types of blood vessels * Arteries: carry blood away from the heart to the capillaries * Capillaries: permit exchange of material with the tissues * Veins: return blood from the capillaries to the heart. Arteries Wall has 3 layers * Endothelium: inner layer‚ made up of simple squamous epithelium‚ with a connective tissue basement membrane that has elastic fibers. * Middle layer: thickest later and consists of smooth muscle that can
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Autoimmune Disorders Dr. Frances Angelique A. Tequillo Cebu Doctors’ University Definitions: * group of >80 serious‚ chronic illnesses * underlying problem is the samefor all * immune system is misdirected * body attacking its own self * 4th largest cause of disability (Europe & the US) * Demonstration of: * immunoglobulins * autoantibodies * cytotoxic T * cells * self antigens * auto-antigens 1.persistent activation of immunologic
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Reading Guide for Chapter 35 – The Vertebrates 1. What are the five features of the chordates? • A hollow dorsal nerve cord just beneath the dorsal surface of the animal. In vertebrates this differentiates into the brain and spinal cord. • A flexible rod called the notochord that’s on the dorsal side of the primitive gut in the early embryo‚ present at some developmental stage in all chordates‚ located just below the nerve cord. May persist in some chordates; in others‚ it is replaced by
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Case Studies on Cardiac Function This is the first case study that is required for the class. Please submit a paper (doesn’t have to be long; you could even give me bullet-point answers to the questions listed below) that answers all of the questions posed after Case Study 1. I have included an easy second case study which‚ if you complete it‚ will be worth extra credit. Answers to the first Case Study are worth 25 points and responding to Case Study 1 is required work for the course. The extra
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