Heart Physiology /Circulatory System Review
... 1. What is the function of the circulatory system? To move nutrients and waste products throughout the body 2. The sinoatrial node is also known as the pacemaker, it is located in the right atrium 3. Arterial blood pressure is determined using a device known as a sphygmomanometer 4. When taking bloo ...
... 1. What is the function of the circulatory system? To move nutrients and waste products throughout the body 2. The sinoatrial node is also known as the pacemaker, it is located in the right atrium 3. Arterial blood pressure is determined using a device known as a sphygmomanometer 4. When taking bloo ...
Slide 1
... -Narrowing and hardening of the arteries due to build up of plaque (cholesterol) -Causes high blood pressure -stroke or heart attack can result if arteries become completely blocked ...
... -Narrowing and hardening of the arteries due to build up of plaque (cholesterol) -Causes high blood pressure -stroke or heart attack can result if arteries become completely blocked ...
Directional Term Practice
... Insert the missing directional terms in the blanks in the statements below the diagram. 1. The head is _SUPERIOR_ to the pelvis. ...
... Insert the missing directional terms in the blanks in the statements below the diagram. 1. The head is _SUPERIOR_ to the pelvis. ...
Heart - IWS2.collin.edu
... Inferior and superior vena cavae Aorta, pulmonary trunk and pulmonary veins ...
... Inferior and superior vena cavae Aorta, pulmonary trunk and pulmonary veins ...
Lecture Notes
... Baroreceptors in the carotid sinus and aortic arch respond to increases in blood pressure.) The cardiac muscle cells in the heart coordinate together to contract because are all interconnected with gap junctions so that when one cell receives an electrical impulse, this spreads quickly to all of the ...
... Baroreceptors in the carotid sinus and aortic arch respond to increases in blood pressure.) The cardiac muscle cells in the heart coordinate together to contract because are all interconnected with gap junctions so that when one cell receives an electrical impulse, this spreads quickly to all of the ...
blood supply of the heart
... - the left coronary is larger than the right. It arises from the aortic sinus. - it passes first behind and then to the left of the pulmonary trunk, reaches the left part of the atrioventricular groove in which it runs laterally round the left border of the heart to reach the inferior interventricul ...
... - the left coronary is larger than the right. It arises from the aortic sinus. - it passes first behind and then to the left of the pulmonary trunk, reaches the left part of the atrioventricular groove in which it runs laterally round the left border of the heart to reach the inferior interventricul ...
Physical Description of the Human Heart
... would be confined to the atria. The AV node splits into AV bundle branches until it reaches the bottom of the heart, where they become the Purkinje fibers. Fibers are tissue that split into numerous and small branches, like a bundle that would keep splitting. The electrical signal is carried to the ...
... would be confined to the atria. The AV node splits into AV bundle branches until it reaches the bottom of the heart, where they become the Purkinje fibers. Fibers are tissue that split into numerous and small branches, like a bundle that would keep splitting. The electrical signal is carried to the ...
Anatomy of the Heart Definitions
... The heart is the size of your fist and it is located on the left side of your chest. The heart is divided into four chambers. Right Atrium The right atrium receives de-oxygenated blood from the body through the superior vena cava (head and upper body) and inferior vena cava (legs and lower torso). R ...
... The heart is the size of your fist and it is located on the left side of your chest. The heart is divided into four chambers. Right Atrium The right atrium receives de-oxygenated blood from the body through the superior vena cava (head and upper body) and inferior vena cava (legs and lower torso). R ...
Walls of the Heart
... extend throughout the ventricles. When the impulses reach the Purkinje fibers, the ventricles contract and push blood out of the heart into arteries. The trail the impulses follow from the pacemaker to the ventricles is called the conduction pathway. It is illustrated in Figure . When the electrical ...
... extend throughout the ventricles. When the impulses reach the Purkinje fibers, the ventricles contract and push blood out of the heart into arteries. The trail the impulses follow from the pacemaker to the ventricles is called the conduction pathway. It is illustrated in Figure . When the electrical ...
The Journey of the Red Blood Cell, by Sophia del Rio
... Imagining ourselves as a group of traveling red blood cells, we are about to embark on a journey through the heart, pointing out structures you need to know for the exam! Beginning on the posterior side of the heart, we drain through the inferior vena cava into the right atrium (RA). We see a ring w ...
... Imagining ourselves as a group of traveling red blood cells, we are about to embark on a journey through the heart, pointing out structures you need to know for the exam! Beginning on the posterior side of the heart, we drain through the inferior vena cava into the right atrium (RA). We see a ring w ...
4. Anatomy of Heart... - College of Pharmacy at Howard University
... heart and forms the apex of the heart. It sends oxygenated blood to the body via the aorta. Systemic circulation ...
... heart and forms the apex of the heart. It sends oxygenated blood to the body via the aorta. Systemic circulation ...
Heart
... Be able to label a diagram, and also be able to describe the external features of the heart including: the left & right auricles, coronary sulcus, anterior interventricular sulcus, posterior interventricular sulcus, superior vena cava (SVC), inferior vena cava (IVC), coronary sinus, left and right p ...
... Be able to label a diagram, and also be able to describe the external features of the heart including: the left & right auricles, coronary sulcus, anterior interventricular sulcus, posterior interventricular sulcus, superior vena cava (SVC), inferior vena cava (IVC), coronary sinus, left and right p ...
Laboratory Exercise 12 Anatomy of the Heart
... membrane. The inner layer, the visceral pericardium (epicardium) is the external layer of the heart wall. It is also a serous membrane. Between the visceral and parietal layers is the pericardial cavity into which the pericardial membranes secrete serous fluid for lubrication. The myocardium compose ...
... membrane. The inner layer, the visceral pericardium (epicardium) is the external layer of the heart wall. It is also a serous membrane. Between the visceral and parietal layers is the pericardial cavity into which the pericardial membranes secrete serous fluid for lubrication. The myocardium compose ...
Structure and Function of the Normal Heart and Blood
... ventricles. Semilunar valves separate the ventricles from the arterial chambers: the aortic valve separates the left ventricle from the aorta, and the pulmonic valve separates the right ventricle from the pulmonary artery. A thin, double-layered membrane called the pericardium surrounds the heart. T ...
... ventricles. Semilunar valves separate the ventricles from the arterial chambers: the aortic valve separates the left ventricle from the aorta, and the pulmonic valve separates the right ventricle from the pulmonary artery. A thin, double-layered membrane called the pericardium surrounds the heart. T ...
The Cardiovascular System
... The atria (sing. Atrium) exhibit thin flaccid walls correspondingto their light workload—all they do is pump blood into theventricles immediately below. They are separated from eachother by a wall, the interatrial septum.A thicker wall, the interventricularseptum, separates the right and left ventri ...
... The atria (sing. Atrium) exhibit thin flaccid walls correspondingto their light workload—all they do is pump blood into theventricles immediately below. They are separated from eachother by a wall, the interatrial septum.A thicker wall, the interventricularseptum, separates the right and left ventri ...
Exercise 20
... Two-sided, doublepumping organ. The left side controls the flow of blood to all tissues and cells in the body, where oxygen and nutrients are delivered and wastes are taken away. The right side sends blood to the lungs, where oxygen stored in RBCs is replenished and CO2 is released ...
... Two-sided, doublepumping organ. The left side controls the flow of blood to all tissues and cells in the body, where oxygen and nutrients are delivered and wastes are taken away. The right side sends blood to the lungs, where oxygen stored in RBCs is replenished and CO2 is released ...
HEART - Wikispaces
... they do not have any anterior connection to the sternum. • The spaces between the ribs are known as intercostal spaces; they contain the intercostal muscles, nerves, and arteries. ...
... they do not have any anterior connection to the sternum. • The spaces between the ribs are known as intercostal spaces; they contain the intercostal muscles, nerves, and arteries. ...
File
... openings between the atria and ventricles permitting the blood to flow in one direction only. ◦ Contraction of the papillary muscles prevent the atrioventricular valves from folding back into the atria. ...
... openings between the atria and ventricles permitting the blood to flow in one direction only. ◦ Contraction of the papillary muscles prevent the atrioventricular valves from folding back into the atria. ...
File
... openings between the atria and ventricles permitting the blood to flow in one direction only. ◦ Contraction of the papillary muscles prevent the atrioventricular valves from folding back into the atria. ...
... openings between the atria and ventricles permitting the blood to flow in one direction only. ◦ Contraction of the papillary muscles prevent the atrioventricular valves from folding back into the atria. ...
LabHeartDissectionProject
... All members of the lab group are prepared to begin the lab. On the first day of the lab show Mrs. Minoletti what you did to prepare. Remember you will not be able bring your textbook into the lab room. Students have a plan of how to dissect the heart. Students clean their lab station well each day. ...
... All members of the lab group are prepared to begin the lab. On the first day of the lab show Mrs. Minoletti what you did to prepare. Remember you will not be able bring your textbook into the lab room. Students have a plan of how to dissect the heart. Students clean their lab station well each day. ...
Slide ()
... A long axis section through the heart profiles the cardiac septum to show the thin valve of the oval foramen (open arrow) on the left atrial side and the muscular rim on the right atrial side. The cut reveals the infolding of the right atrial wall at the superior rim that is filled with epicardial f ...
... A long axis section through the heart profiles the cardiac septum to show the thin valve of the oval foramen (open arrow) on the left atrial side and the muscular rim on the right atrial side. The cut reveals the infolding of the right atrial wall at the superior rim that is filled with epicardial f ...
Unit 1 Lecture 2
... The heart rests on the diaphragm in a space called the mediastinum. It weighs @ 300 grams and is about as big as a clenched fist. The pointed end is called the apex and the opposite end is called the base but is really the top of the heart. The bulk of the heart tissue is made up of the left ventric ...
... The heart rests on the diaphragm in a space called the mediastinum. It weighs @ 300 grams and is about as big as a clenched fist. The pointed end is called the apex and the opposite end is called the base but is really the top of the heart. The bulk of the heart tissue is made up of the left ventric ...
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.