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Monthly Archives: April 2011
Tooth Anatomy
Teeth and Their Parts Each tooth has two main parts, the crown and the root. The crown and the root meet at the neck of the tooth, which is normally just below the gum margin. The tooth The crown This … Continue reading
Posted in Anatomy
Tagged alveolar bone, Anatomy, baby teeth, back teeth, cementum, crown, dentin, enamel, front teeth, gums, peridontal ligament, permanent teeth, pulp, roots, tooth anatomy, tooth names
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Heart Anatomy
Overview of Heart Anatomy Coronary Arteries Because the heart is composed primarily of cardiac muscle tissue that continuously contracts and relaxes, it must have a constant supply of oxygen and nutrients. The coronary arteries are the network of blood vessels … Continue reading
Posted in Anatomy
Tagged Anatomy, aorta, chordae tendineae, inferior vena cava, left anterior descending branch, left atrium, left circumflex branch, left ventricle, mitral valve, overview of heart, pulmonary artery, pulmonary valve, pulmonary vein, right atrium, right ventricle, superior vena cava, tricuspid valve
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Heart Conduction System
Heart’s electrical system controls all the events that occur when our heart pumps blood. The cardiac conduction system is also called the electrical system. The sinoatrial node (SAN), located within the wall of the right atrium (RA), normally generates electrical … Continue reading
Types of Sleep
Sleep was long considered just a uniform block of time when you are not awake. Thanks to sleep studies done over the past several decades, it is now known that sleep has distinct stages that cycle throughout the night in … Continue reading
Posted in Physiology
Tagged four stages of non-REM, non-REM, Physiology, REM, types of sleep
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Protozoa-Basic Facts
Protozoa, from the Greek meaning ‘first animal’, refers to simple, eukaryotic organisms composed of a microscopic single cell. Reproduction is through simple asexual cell division, or binary fission, in which two daughter cells are formed or, if many daughter cells … Continue reading
Posted in Microbiology
Tagged amoebae, apicomplexa, ciliates, Diagnosis and treatment, flagellates, Microbiology, protozoa
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Fungi
Fungi are eukaryotic organisms that comprise yeasts, moulds (filamentous fungi) and higher fungi (mushrooms and toadstools). They are widely distributed in the environment and can survive in extreme conditions where nutrients limited. Most fungi are saprophytes (living off dead organic … Continue reading
Posted in Microbiology
Tagged disease caused by fungi, fungi, Microbiology, moulds, mycology, mycoses, subcutaneous mycoses, superficial mycoses, systemic mycoses, yeast
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Viruses
What are viruses and how they work?
What is Normal Heartbeat?
The normal resting adult heart beats regularly at an average rate of 60-100 times per minute. How fast the heart beats (heart rate) is governed by the speed of electrical signals originating from the pacemaker of the heart, the SA … Continue reading
Posted in Physiology
Tagged ECG, electrical signals in heart, normal heart rate, Physiology, PQRST wave
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10 Mistakes made in Clinical Rotation
During the clinical rotations, we notice that a resident tends to commit these following mistakes which are avoidable and thus making the resident more effective in both knowledge and relationships. Hence my advice for young doctors: 1. Arguing with a … Continue reading
Medical Education for Undergraduate MD Students 