Pulmonary artery Essays

The function of the pulmonary artery is to pump deoxygenated blood to the lungs from the heart to become oxygenated. The pressure inside the pulmonary artery is very low, although blood here is at a slightly higher pressure than the blood in the pulmonary vein, and this is reflected as the walls of the artery are significantly thinner than the walls of a corresponding artery, for example, the aorta. The walls of the pulmonary artery contain a large amount of elastic fibres in order to maintain the

Childbirth is a normal part of everyone’s lives. All humans are delivered through childbirth, and those who are born grow into a toddler, a child, a teen and to an adult. While the most known method is vaginal birth, sometimes this does not work because of dangers. The Cesarean section is a type of surgery where the baby is extracted from the abdomen. This method can come with benefits; but with many consequences as well. The C section (as it is often called) is where the delivery of a baby happens

Spider angioma is a mutation in the Integumentary System where there is a collection of thin walled, dilated blood vessels in a small area near the epidermis. These vessels are usually red, purple, or blue. In the center of the thin blood vessels, is a central spot that is usually red and more apparent than the rest of the mutation because it is located above the epidermis. Due to the way it looks, the disease has the name “Spider” because of the central spot and the vessels branching off of it tend

superior vena cava and the pulmonary veins, whereas the other connects the aorta and the pulmonary trunk. Blood Supply and Innervation of the

around the body in order for the body to work to its highest ability. In order for the muscles in the body to function properly, blood is needed. The heart pumps blood to all the important areas throughout the body through an artery known as the aorta (which is the main artery which leads from the body). A thick layer of muscle called the septum which separates both sides of the heart. The deoxygenated blood exits through the right ventricle of the heart

CIRCULATORY SYSTEM 1. INTRODUCTION The circulatory system is also known as the cardiovascular system. This system is a double circulatory closed system which transports blood via arteries, veins and capillaries to the lungs through the pulmonary circulation and to the rest of the body tissues in the systemic circulation. Since the blood travels to varying distances around the body, the blood vessels have to be adapted to overcome different pressures. The pressure changes in the four chambers on the

Transposition of the Great Arteries, Pediatric A good way to understand this condition is to first think about how blood flows in the body. Arteries are blood vessels that carry blood away from the heart to other places in the body. The two largest of these arteries are called the great arteries. One of them, the pulmonary artery, takes blood from the heart to the lungs. In the lungs, oxygen is added to the blood. Then it goes back to the heart. From there, the other great artery delivers it to the rest

vascular system. The heart is a two sided pump with 4 chambers. The right atrium receives de oxygenated blood from the veins of the body. The right ventricle pumps deoxygenated blood to the lungs via the pulmonary arteries. The left atrium receives oxygenated blood from the lungs via the pulmonary veins. The left ventricle pumps oxygenated blood to the body via the aorta. The cardiac cycle consists of 2 phases: systolic (the contraction phase) and diastolic (relaxation phase). Blood pressure ensures

function of the heart and the structure of arteries, veins and capillaries. Referring to Louise Tucker 5th edition, the heart is an organ that pumps blood through the body via the circulatory system, supplying nutrients and oxygen to the tissues and removing carbon dioxide and other waste products. According to Louise Tucker arteries are thick walled, hollow tubes with a fibrous outer covering, a middle layer of muscle and elastic tissue. The functions of arteries are: • Carry oxygenated blood away from

heart is controlled by valves at two points. The atrioventricular valves (mitral and tricuspid values) are like flags anchored by fibrous cords between the atria and the ventricles. The semilunar valves (aortic and pulmonary valve) are cup shaped and are found at the opening of the arteries. The human heart normally beats between 60 and 80 times a minute at rest. This can increase to well over 100 times a minute during exercise. Blood that has circulated through your body that has had most of its oxygen

SYSTEM DEEP VEIN THROMBOSIS Anatomy and physiology Vein is an elastic blood vessel that transports blood from all part of the body to the heart. Vein have four main types, which is pulmonary, systemic, superficial and deep vein. Deep vein located deep within muscle tissue and typically located near the corresponding artery with a same name. Deep vein thrombosis Deep vein thrombosis (DVT) is pathology of cardiovascular system. It happens when the blood clotting in a deep vein of the blood vessel are

Sadly there are many pediatric heart conditions in the world that are treated every day, and many more arise as well these cases include ASD, VSD, PDA and TOF. The first major condition being Atrial Septal Defect (ASD). This defect is actually in the septum the wall that separates the right and left sides of the heart. A hole in the wall between the two upper chambers is called an atrial septal defect, or (ASD). This is one of the least complex forms of congenital heart defect of the many in infants

matrix called plasma, which makes up approximately 55% of the blood. It is essential that blood is transported to the organs and systems of the body in order for these systems to function. The fluid is transported through blood vessels known as arteries, veins and capillaries in a succession starting and ending at the heart. Physiology:

The heart is an organ of muscles. It’s necessary to pump blood throughout the body. The heart has four chambers: two atria (left and right) and two ventricles (left and right). The two atria chambers are located at the top of the heart; whereas, the two ventricles are located at the bottom of the heart. The chambers help blood flow smoothly through the heart. The atria chambers are the receiving chambers. Their objective is to receive blood returning to the heart. The blood flow into the atria from

“An average heart has four chambers; two upper, called the atria and two lower, called the ventricles. The right side of the heart receives blood that is returning from the body. This oxygen-lacking blood arrives in the right atrium, where it is pumped into the right ventricle.” (Blaser). This is the structure of the heart, an organ every person in the world has, and that so happens to be the most important organ in an organism’s body. The heart helps people get oxygen, keep the organs alive, and

REVIEW OF LITERATURE HISTORY OF THE PORTAL SYSTEM 384-322 BC - Aristoteles was the first person who described about portal vein(PV). 300-250 BC - Herophilos recognized the importance of portal venous system in acting as the zone of discharge for all the resorbent veins from the intestine 129-199AD - Galenus described the portal venous system along with the intrahepatic branches 1597-1677 - Glisson demonstrated the independent nature of portal venous circulation from rest of the blood circulation

the heart is artery; vein is towards the heart). If they connect arteries and veins then they are called capillaries and if an organ is receiving or returning the blood then the organ’s name is a part of the blood vessel’s name. Circle of Willis is a looped network (anastomosis) of arteries at the base of the brain. Branches of the internal carotid arteries form the front of the circle and branches of the posterior cerebral arteries form the back of the circle, with smaller arteries, collectively

Pulmonary edema is a common condition seen in the hospital by respiratory care practitioners. It is important for respiratory care practitioners to have an understanding of the condition itself, along with the skill set to quickly recognize pulmonary edema. It is also important for respiratory care practitioners to stay current on the most effective treatment options available for patients with pulmonary edema. Pulmonary edema is a condition which results from excess fluid in the lungs. This

plaque builds up inside the coronary arteries. The heart is a muscular pump located in the mediastinum that keeps blood flowing through the vessels. Coronary heart disease can develop because of hereditary or old age. Another way it develops is because of obesity, smoking, lack of exercise, anxiety, stress, and aggression. The pulmonary and systemic circuits carry blood to the organs in the body. The pulmonary circuit is on the right half of the heart. The pulmonary circuit carries blood to the lungs

Aortic arches are also called as pharyngeal arteries. They are vascular structures that emerge from the ventricle of the heart. There are 6 pairs of these arches in embryonic stages which give rise to several major arteries later. They arise from the aortic sac and are present on the ventral and dorsal aorta. As discussed earlier that there are 6 pairs of aortic arches present in embryonic stages giving rise to several arteries are as follows: Arch 1st and 2nd: The first and second arches