-increase glucose in blood -increase protein synthesis : by releasing amino acids into blood -increase fatty acids in blood 3. -zona reticularis- secretes androgens : testosterone -in females: testosterone is responsible for muscle tone‚ sex drive Pathologies of adrenal cortex 1. -Addison’s disease: underproduction of corticosteroids - mineral and gluco-corticoids -symptoms: weight loss‚ decreased sodium levels--> high potassium‚ water loss from blood--> hypovolemia
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Before the motor neuron cone arrives the muscle fiber‚ AChR clusters are formed in the middle section of a muscle fiber. When the growing nerve cone attaches the muscle fiber‚ Agrin activates Lrp4‚ which then binds to the receptor tyrosine kinase MuSK‚ through this binding MuSK is phosphorylated and starts to form the neural and aneural AChR clustering (Burden 2011). Morphologic differences in the pre- and/or postsynaptic part of the NMJ can be a hint of a certain disease. In the following figure
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Viruses Breann Johnson COM/155 03/17/2013 University of Phoenix Bacteria and Viruses Almost 56‚000 people are hospitalized each year‚ and over 1‚300 die because of food borne bacteria and virus microbes. Bacteria and viruses are tiny microscopic pathogens that can cause infectious disease‚ or even result in death. “Infectious diseases remain a major cause of death‚ disability‚ social‚ and economic disorders for millions of people around the world. Poor health care‚ poverty‚
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Anatomy of the Future Andreas Vesalius August 1‚ 1539 After attending college at the University of Louvain‚ I moved to Padua to study for my doctorate. After being offered the chair of surgery and anatomy‚ I pursued my desire to research the anatomy. Although surgery and anatomy are considered of little importance in comparison to other branches of medicine‚ I believe that surgery must be grounded in anatomy. I have been given the opportunity to perform my research on the cadavers of executed
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typically permits the membrane potential to reach the threshold potential at which it fires the next action potential (pacemaker potential). Thus‚ the pacemaker potential is what drives the self-generated rhythmic firing. This is known as cardiac muscle automaticity.[2] Pacemaker potentials are fired by sinoatrial node (SAN)‚ but also by the other foci. However‚ the last ones have firing frequencies slower than the SAN’s. When other foci attempt to fire at their intrinsic rate‚ they can’t because
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the chest cavity and surrounded by a fluid filled sac called the pericardium. This amazing muscle produces electrical impulses that cause the heart to contract‚ pumping blood throughout the body. The heart and the circulatory system together form the cardiovascular system. Heart Anatomy: Chambers Atria - upper two chambers of the heart. Ventricles - lower two chambers of the heart. Heart Anatomy: Heart Wall Epicardium - the outer layer of the wall of the heart. Myocardium
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arethese types of joints more prone to injury? Because they can only move in two directions – if force is applied from another direction‚ it willresult in injury. C. When performing flexion on the arm‚ the biceps muscle (on the anteriorof the arm) contracts. What happens to the triceps muscle (on the posteriorof the arm) as this action is performed? They retract as this happens. 16 ©Hands-Onc om Experim Joints and Body D. Both the shoulder and the hip are ball and socket joints. Why does
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simple. I’m not saying it is easy‚ but fundamentally it is very straight forward.In order to lay the ground work‚ let me establish 3 main tricks for you when it comes to stimulate arm growth. 1. Relatively speaking‚ biceps and triceps are small muscle gourps 2. Your biceps are heavily stimualted every time you perform a basic pulling movement for your back 3. Your triceps are heavily stimulated every time you rperform a basic pressing movememnt for your chest or for your shoulders So keeping
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V. Anatomy and Physiology The Urinary Tract The Urinary System rids the body of nitrogenous wastes while regulating water‚ electrolyte‚ and acid-base balance of the blood. Kidneys Kidneys are small‚ dark red organs with a kidney-bean shape lie against the dorsal body wall in a retroperineal position (beneath the parietal peritoneum) in the superior lumbar region. The kidneys extend from T12 to the L3 vertebra; thus they receive some protection from the lower part of the rib cage. Because
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Name: ___________________________________ Period: _____ Date: ___________ Case Study: Skeletal System Chief Complaint: 72-year-old woman who fell on her right hip. History: Margaret Donovan‚ a 72-year-old white female‚ was brought to the emergency room by her son-in-law after falling in her bathtub. She was previously in good health‚ despite leading a relatively sedentary lifestyle and having a 30-year history of cigarette smoking. The only medication she currently takes is Inderal (propranolol)
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