Myocardial Infarction (MI) File
... Other causes of MI include : • vasospasm (sudden constriction or narrowing) of a coronary artery • decreased oxygen supply (eg, from acute blood loss, anemia, or low blood pressure) • increased demand for oxygen (eg, from a rapid heart rate, thyrotoxicosis, or ingestion of cocaine). In each case, a ...
... Other causes of MI include : • vasospasm (sudden constriction or narrowing) of a coronary artery • decreased oxygen supply (eg, from acute blood loss, anemia, or low blood pressure) • increased demand for oxygen (eg, from a rapid heart rate, thyrotoxicosis, or ingestion of cocaine). In each case, a ...
Directional Terms Practice Complete the following statements by
... Directional Terms Practice Complete the following statements by circling the correct term in brackets. a. The toes are [proximal or distal] to the ankles. b. The scalp is [superficial or deep] to the skull. c. The diaphragm is [superior or inferior] to the lungs. d. The heart is [superior or inferio ...
... Directional Terms Practice Complete the following statements by circling the correct term in brackets. a. The toes are [proximal or distal] to the ankles. b. The scalp is [superficial or deep] to the skull. c. The diaphragm is [superior or inferior] to the lungs. d. The heart is [superior or inferio ...
We have a box, the thorax. Floor is the diaphragm. Roof is
... thorax (starts in superior mediastinum). Also have trachea and esophagus. Esophagus lying behind the trachea. Also, vagus and phrenic nerves run through here too. R vagus nerve, branches off to R recurrent laryngeal. R vagus cont to esophagus and becomes the posterior vagal trunk. L vagus, branches ...
... thorax (starts in superior mediastinum). Also have trachea and esophagus. Esophagus lying behind the trachea. Also, vagus and phrenic nerves run through here too. R vagus nerve, branches off to R recurrent laryngeal. R vagus cont to esophagus and becomes the posterior vagal trunk. L vagus, branches ...
Veins from the Abdominal Viscera
... Branches of the thoracic aorta and subclavian artery supply the thoracic wall with blood. Branches of the abdominal aorta, as well as other arteries, supply the abdominal wall with blood. Arteries to the Pelvis and Lower Limb At the pelvic brim, the abdominal aorta divides to form the common iliac a ...
... Branches of the thoracic aorta and subclavian artery supply the thoracic wall with blood. Branches of the abdominal aorta, as well as other arteries, supply the abdominal wall with blood. Arteries to the Pelvis and Lower Limb At the pelvic brim, the abdominal aorta divides to form the common iliac a ...
The heart is a hollow muscular organ that is somewhat pyramid
... septum into the cavity of the right ventricle . There are welldeveloped trabeculae carneae, two large papillary muscles, but no moderator band. The part of the ventricle below the aortic orifice is called the aortic vestibule. The mitral valve guards the atrioventricular orifice . It consists of two ...
... septum into the cavity of the right ventricle . There are welldeveloped trabeculae carneae, two large papillary muscles, but no moderator band. The part of the ventricle below the aortic orifice is called the aortic vestibule. The mitral valve guards the atrioventricular orifice . It consists of two ...
Cardiovascular sysytem
... Small cardiac vein- present on posterior right part of the coronary sulcus (runs along the terminal part of right coronary artery) drains the right atrium and right ventricle. Joins the coronary sinus at its terminal point. Middle cardiac vein- present on the inferior and posterior interventricu ...
... Small cardiac vein- present on posterior right part of the coronary sulcus (runs along the terminal part of right coronary artery) drains the right atrium and right ventricle. Joins the coronary sinus at its terminal point. Middle cardiac vein- present on the inferior and posterior interventricu ...
conducting system of the heart, blood supply and nerve supply to heart
... ventricles allows time for the atria to empty their blood into the ventricles before the contract ventricles ...
... ventricles allows time for the atria to empty their blood into the ventricles before the contract ventricles ...
The Heart and blood vessels and circulation Chapter 12 and 13
... from the head, neck upper limbs, and chest. ...
... from the head, neck upper limbs, and chest. ...
Cardiovascular system1
... dense connective tissue Lubricating serous fluid secreted by visceral layer is present pericardial ...
... dense connective tissue Lubricating serous fluid secreted by visceral layer is present pericardial ...
BLOOD SUPPLY OF HEART
... Supplies the SAN and both atria In 35% it arises from the left coronary. Posterior ventricular branches; About 2 supply the diaphragmatic surface of the right ventricle. ...
... Supplies the SAN and both atria In 35% it arises from the left coronary. Posterior ventricular branches; About 2 supply the diaphragmatic surface of the right ventricle. ...
ORAL CAVITY
... The muscular diaphragm separates the upper from the lower ventrali:>ody cavity. The upper is the thoracic, the lower is the abdominal cavity. We shall study the abdominal area first and later consider the thorax in relation to the study of the heart and circulatory system. With your fingertips locat ...
... The muscular diaphragm separates the upper from the lower ventrali:>ody cavity. The upper is the thoracic, the lower is the abdominal cavity. We shall study the abdominal area first and later consider the thorax in relation to the study of the heart and circulatory system. With your fingertips locat ...
Anatomy of the heart
... The heart is a midline, valvular, muscular pump that is coneshaped and the size of a fist. In adults, it weighs 300 grams and lies in the middle mediastinum of the thorax. The inferior (diaphragmatic) surface sits on the central tendon of the diaphragm, whereas the base faces posteriorly and lies im ...
... The heart is a midline, valvular, muscular pump that is coneshaped and the size of a fist. In adults, it weighs 300 grams and lies in the middle mediastinum of the thorax. The inferior (diaphragmatic) surface sits on the central tendon of the diaphragm, whereas the base faces posteriorly and lies im ...
Glossary of Key Terms and Concepts
... It consists of endothelium and a thin subendothelial connective tissue. Epicardium (visceral pericardium) - This outer tunic of thin serous membrane covers the myocardium. It is derived from splanchnopleuric mesoderm and also forms the coronary vessels. Foramen ovale - This inferior opening in the s ...
... It consists of endothelium and a thin subendothelial connective tissue. Epicardium (visceral pericardium) - This outer tunic of thin serous membrane covers the myocardium. It is derived from splanchnopleuric mesoderm and also forms the coronary vessels. Foramen ovale - This inferior opening in the s ...
Chambers of the heart
... pathway that connects the myocardium of the atria to the myocardium of the ventricles electrically. Thus it is the only route for transmission of impulse from atria into the ventricles. The bundle descends through the fibrous skeleton of the heart to reach the inferior border of the membranous part ...
... pathway that connects the myocardium of the atria to the myocardium of the ventricles electrically. Thus it is the only route for transmission of impulse from atria into the ventricles. The bundle descends through the fibrous skeleton of the heart to reach the inferior border of the membranous part ...
Cardiovascular System_Lecture III - Medical
... larger blood vessels called veins. Venules have three layers: An inner endothelium composed of squamous epithelial cells that act as a membrane, a middle layer of muscle and elastic tissue and an outer layer of fibrous connective tissue. The middle layer is poorly developed so that venules have thin ...
... larger blood vessels called veins. Venules have three layers: An inner endothelium composed of squamous epithelial cells that act as a membrane, a middle layer of muscle and elastic tissue and an outer layer of fibrous connective tissue. The middle layer is poorly developed so that venules have thin ...
The Circulatory System – The Heart
... The Circulatory System – The Heart Make sure you know the pathway of blood flow through the chambers and valves of the heart, as shown in figure 20.10 in your book, and as explained on page 580 The Pulmonary and Systemic Circuits: The pulmonary circuit carries blood to the lungs for gas exchange a ...
... The Circulatory System – The Heart Make sure you know the pathway of blood flow through the chambers and valves of the heart, as shown in figure 20.10 in your book, and as explained on page 580 The Pulmonary and Systemic Circuits: The pulmonary circuit carries blood to the lungs for gas exchange a ...
Clinical Anatomy of Pericardium and Heart part 2
... is a necrosis of the myocardium because of local ischemia resulting from vasospasm or obstruction of the blood supply, most commonly by a thrombus or embolus in the coronary arteries. Symptoms are severe chest pain or pressure for a prolonged period (more than 30 minutes), congestive heart failure ...
... is a necrosis of the myocardium because of local ischemia resulting from vasospasm or obstruction of the blood supply, most commonly by a thrombus or embolus in the coronary arteries. Symptoms are severe chest pain or pressure for a prolonged period (more than 30 minutes), congestive heart failure ...
4-BLOOD SUPPLY OF HEART
... artery is a branch of the Right Coronary. Left dominance: In the rest (10%), the Posterior Interventricular artery arises from the Circumflex branch of the Left Coronary A ...
... artery is a branch of the Right Coronary. Left dominance: In the rest (10%), the Posterior Interventricular artery arises from the Circumflex branch of the Left Coronary A ...
The Circulatory System – The Heart
... The Circulatory System – The Heart Make sure you know the pathway of blood flow through the chambers and valves of the heart, as shown in figure 20.10 in your book, and as explained on page 580 The Pulmonary and Systemic Circuits: The pulmonary circuit carries blood to the lungs for gas exchange a ...
... The Circulatory System – The Heart Make sure you know the pathway of blood flow through the chambers and valves of the heart, as shown in figure 20.10 in your book, and as explained on page 580 The Pulmonary and Systemic Circuits: The pulmonary circuit carries blood to the lungs for gas exchange a ...
The Circulatory System – The Heart
... The Pulmonary and Systemic Circuits: The pulmonary circuit carries blood to the lungs for gas exchange and returns it to the heart The systemic circuit carries blood to every organ of the body, including other parts of the lungs and the wall of the heart itself The Position, Size, and Shape of t ...
... The Pulmonary and Systemic Circuits: The pulmonary circuit carries blood to the lungs for gas exchange and returns it to the heart The systemic circuit carries blood to every organ of the body, including other parts of the lungs and the wall of the heart itself The Position, Size, and Shape of t ...
ductus venosus
... 6. Some blood will enter the right ventricle from the right atrium and into the pulmonary trunk. From this point most of this blood will be shunted away from the pulmonary trunk and into the aorta via which fetal structure? Name the adult remnant of this structure. o Ductus arteriosus which becomes ...
... 6. Some blood will enter the right ventricle from the right atrium and into the pulmonary trunk. From this point most of this blood will be shunted away from the pulmonary trunk and into the aorta via which fetal structure? Name the adult remnant of this structure. o Ductus arteriosus which becomes ...
![4-BLOOD SUPPLY OF HEART [Autosaved]](http://s1.studyres.com/store/data/000391496_1-1cc69f66eb9ccd5c1082faab8bb4d060-300x300.png)
4-BLOOD SUPPLY OF HEART [Autosaved]
... from the anterior aortic sinus of the ascending aorta. Runs forward between pulmonary trunk and right auricle. Descends in the right atrioventricular groove between the Right Auricle and the Pulmonary trunk. At the inferior border of the heart it is continuous posteriorly along the atrioventricul ...
... from the anterior aortic sinus of the ascending aorta. Runs forward between pulmonary trunk and right auricle. Descends in the right atrioventricular groove between the Right Auricle and the Pulmonary trunk. At the inferior border of the heart it is continuous posteriorly along the atrioventricul ...
Heart
The heart is a muscular organ in humans and other animals, which pumps blood through the blood vessels of the circulatory system. Blood provides the body with oxygen and nutrients, and also assists in the removal of metabolic wastes. The heart is located in the middle compartment of the mediastinum in the chest.In humans, other mammals, and birds, the heart is divided into four chambers: upper left and right atria; and lower left and right ventricles. Commonly the right atrium and ventricle are referred together as the right heart and their left counterparts as the left heart. Fish in contrast have two chambers, an atrium and a ventricle, while reptiles have three chambers. In a healthy heart blood flows one way through the heart due to heart valves, which prevent backflow. The heart is enclosed in a protective sac, the pericardium, which also contains a small amount of fluid. The wall of the heart is made up of three layers: epicardium, myocardium, and endocardium.The heart pumps blood through both circulatory systems. Blood low in oxygen from the systemic circulation enters the right atrium from the superior and inferior vena cavae and passes to the right ventricle. From here it is pumped into the pulmonary circulation, through the lungs where it receives oxygen and gives off carbon dioxide. Oxygenated blood then returns to the left atrium, passes through the left ventricle and is pumped out through the aorta to the systemic circulation−where the oxygen is used and metabolized to carbon dioxide. In addition the blood carries nutrients from the liver and gastrointestinal tract to various organs of the body, while transporting waste to the liver and kidneys. Normally with each heartbeat the right ventricle pumps the same amount of blood into the lungs as the left ventricle pumps to the body. Veins transport blood to the heart and carry deoxygenated blood - except for the pulmonary and portal veins. Arteries transport blood away from the heart, and apart from the pulmonary artery hold oxygenated blood. Their increased distance from the heart cause veins to have lower pressures than arteries. The heart contracts at a resting rate close to 72 beats per minute. Exercise temporarily increases the rate, but lowers resting heart rate in the long term, and is good for heart health.Cardiovascular diseases (CVD) are the most common cause of death globally as of 2008, accounting for 30% of deaths. Of these more than three quarters follow coronary artery disease and stroke. Risk factors include: smoking, being overweight, little exercise, high cholesterol, high blood pressure, and poorly controlled diabetes, among others. Diagnosis of CVD is often done by listening to the heart-sounds with a stethoscope, ECG or by ultrasound. Specialists who focus on diseases of the heart are called cardiologists, although many specialties of medicine may be involved in treatment.