Brochure information
Anatomy and physiology of the cardiovascular system
Cardiovascular System
According to (smith.A2013).
The cardiovascular system includes the heart, blood vessels and also blood. Its role is to deliver nutrients and takes away any by-products from a person’s body. The cardiovascular system is the heart and it is a four-chambered pump that carries blood to the arteries these arteries then carries out clean and oxygenated blood to the tissue.
The blood
Definition
According to (dictionary.com 2002).
Blood is the fluid that circulates in the vascular system of human beings and, in a humans blood is consisting of plasma in which the red blood cells, white blood cells and platelets are suspended.
Two Parts of the blood.
Plasma
…show more content…
Platelets do not contain a nucleus and can only survive in the body for a week and then a ‘Macrophages’ capture and digest them, platelets are also formed in the red bone marrow. (innerbody,2016)
The functions of blood
The bloods functions include:
Transportation – the blood carries other substances around the body inside the Arteries, Veins and Capillaries. The blood flows through the circulatory system and also dissolves gases such as oxygen and carbon dioxide.
Immunity and defence- white blood cells are cells that help fight infection. (Teachpe,2017).
Maintaining body temperature.
Destroys toxins from the body such as acids. (Ivy rose,2003)
Blood vessels
Definition
A blood vessel is a vessel in a human’s body in which blood circulates, Arteries carry the blood away from the heart and the very small branches are the Arterioles. The venules collect the blood from different organs, they unite to form veins.
The 5 types of blood vessels in the body are: (ref http://patient.info/health/the-heart-and-blood-vessels)
Arteries
…show more content…
These small veins are called venules. Venules collect blood from capillaries and drain into veins.
5 - Veins are the blood vessels that carry blood back to the heart. They may contain valves which stop blood flowing away from the heart.
Describe the 3 main types of blood circulation? - https://www.reference.com/science/three-types-circulation-28f4fb9363b09f33
The three types main types of blood circulation are
1 - Systemic circulation
2 – Pulmonary circulation
3 – Portal circulation
These three systems work together for the proper oxygenation and blood flow throughout the body.
Systemic Circulation is when the network of vessels carry blood from the heart to the body and from the body back to the heart
Pulmonary Circulation is a network of vessels that carries blood to and from the lungs Portal Circulation is the network of arteries and veins that supplies blood to all the cells of the heart
Describe the cardiac cycle and blood pressure
Ref -
Pathophysiology The present of a patent foramen ovale is required to permit blood flow across the septum into the left atrium, the patent duct arteriosus allows blood to flow to the pulmonary artery into the lungs. VSD allows a modest amount of blood to enter the right ventricle &pulmonary artery. Thus pulmonary blood flow is diminished.
The Pintails heart is like a mammals consisting of four chambers, two ventricles and two atria. The left ventricle pumps blood to all major organs in the body and throughout the rest, only excluding the lungs. This causes the left ventricle to be larger and more muscular. The lungs are fed blood from the right ventricle, which is the only the only function of that ventricle. The oxygenated blood coming from the lungs is fully separated from the oxygenated blood coming from other parts of the body.
The functions of the human cardiopulmonary system can be broken down into two, circulatory system and the respiratory system. The main goal of these two systems is to maintain homeostasis in our body. Homeostasis can be described as a type of condition where the internal continuity of an individual has to keep steadiness, regardless of any external changes from the outside environment. External changes from the outside environment may include factors such as excitement, stress, exercise, diet, and much more. Exercise can be carried out because the human body can endure a high level of exercise during a prolonged period of time.
In this process, the blood vessels of the patient would be fixed to those of a human donor of matching blood type. While the patient’s heart was open during surgery, the donor’s body would act as a blood oxygenator and the blood would be kept circulating via mechanical pump, in addition to the donor’s beating
Also the lymphatic system stops fluid form building up in the tissues in our body and its acts as a filter for the blood and removes the pathogens and antigens from the blood. Role of the parts: Lymph nodes – Lymph nodes are enclosed, located around the lymph vessels. Lymph nodes are a key organ of the immune system and they make white blood cells which help fight off diseases. They also create antibodies to neutralize infections. They do this by producing lymphocytes protects the body from harmful microorganisms, unknown particles and removes litter from the lymph.
The arteries are thick walled muscular and elastic, three layered hollow tubes the thickness is needed to cope better with the pressure of blood flowing through the lumen of
The Respiratory and Cardiovascular systems work together in order to complete specific roles in the body. The Respiratory System is composed of specific organs responsible for inhaling oxygen and gas exchange throughout the lungs and body tissues. The Cardiovascular System is a circulatory system that is powered by the hardest working organ in the body ,the heart, it is responsible for moving nutrients, oxygen, cellular waste products ,and hormones. “Oxygen is required for cellular functions”, (Lysis 1). The cardiovascular and respiratory system work together to assure that all organ tissues sustain sufficient oxygen.
INTRODUCATION THROMOS DEFINATION Thrombosis is the making of a blood clot inside a blood vessel, stop the flow of blood through the circulatory system. When a blood vessel is injured, the body uses platelets and fibrin to form a blood clot to prevent blood loss from the body. Even when a blood vessel is not injured, blood clots may form in the body under certain conditions. A clot, or a piece of the clot, that breaks free and begins to travel around the body is known as an embolus[1]
Although humans have discovered these useful tools, only God can create a fully functional body and only He can create blood. Blood is a connective tissue with many functions. First, blood is a transport medium that allows substances like oxygen, nutrients, hormones, carbon dioxide, and waste products to flow throughout the body. Second, it is a regulatory tissue that monitors the blood’s delicate pH and temperature.
The small saphenous vein (SSV) is a superficial vein in the leg. It originates from the lateral side of the dorsal venous arch passes behind the distal end of the fibula and up the back of the leg to penetrate deep fascia and join the popliteal vein posterior to the knee [1]. This vein is considered the second largest blood vessel in the leg. Like most of the superficial leg veins, this vein features smooth muscle cells in its adventitia and the inner media [2]. Also SSV is in danger of becoming distended or having thrombosis [2].
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 ANATOMY OF THE PORTAL VENOUS SYSTEM The system of veins that transport blood from of the spleen, alimentary tract, pancreas along with the gallbladder constitute the portal venous system. It is a valveless system that enters the liver via the porta
Such opposing hydrostatic pressure is known as the Interstitial Fluid Hydrostatic Pressure (IFHP). In general, the CHP originating from arterial pathways is higher as compared with IFHP as lymphatic vessels are constantly absorbing extra fluid from tissues. Therefore, generally fluid moves away from capillary and enters into interstitial fluid; this method is known as ‘filtration’. 6.2 Explain Oedema and some Possible Causes Oedema is a medical term that is used for swelling. Basically, it is a common body response towards inflammation or injury.
The blood finally pumps back to the atrium where the process begins again. (University of Waikato) (See fig.5 ) In humans, blood enters the heart from the posterior and anterior veins vena cava which carries de-oxygenated blood from parts of the body into the right atrium. From the right atrium the blood flows into the right ventricle and through the tricuspid valve which shuts when the ventricle is full. The blood exits the heart through the pulmonic valve, into the pulmonary artery and then into the lungs where gas exchange occurs.
When they in bloodstream, then they will transported to tissues to all the body. Then, they will back to the lymphatic system and repeat the
The four systems are the digestive system, the respiratory system, the circulatory system, lymphatic system and the urinary system. The digestive system is divided into two sections i.e. the alimentary canal this is about nine meters long which starts from the mouth and ends at the anus. The second section is the accessory organs these are organs which assist with digestion, absorption and storage of food substances. This includes the pancreas, liver and the gall bladder.