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 heart is a pump that drives the whole circulatory system. It receives and propels blood, rhythmically contracting, forcing the blood through a system of vessels. The hearts action is controlled by the autonomic nervous system. STRUTURE OF THE VEINS, CAPILLARIES AND
It is between the lungs (first behind the sternum) and the apex of the heart points to the left of the body. Blood is pumped from the heart (a muscular organ) around the body through a transport system of arteries, veins and capillaries. The blood is the body’s fuel; the heart is its engine. Structure and function of the heart The heart is a muscular, hollow, red organ with membranes covering and lining it. The muscular wall of the heart is divided into 3 layers; 1.
Systems The entire structure of a human body comprises of a head, neck, torso, two arms and two legs. There are various systems that are made up of varying numbers and types of organs arranged together to perform complex functions for the body. There are nine major systems that help human body perform various functions. These are:
Blood in the veins is low pressure. Veins have one-way valves to prevent backflow of blood to the heart. Capillaries are the smallest blood vessel in the body. The arteries, veins and capillaries are divided into two circulatory systems: systemic and
In the human body, one of the essential systems is the digestive system, which breaks down the foods what we eat into nutrients such as proteins, carbohydrates, vitamins and fats. The bloodstream would be absorbed by them. Therefore, it provides the body with energy, repair and growth. Also, the three types of processes that food passes through in the human body are digestion, absorption and elimination. The digestive system prepares the body cells for nutrients through six activities: Ingestion, Mechanical digestion, Propulsion, Chemical digestion, Absorption and Defecation.
The ventricles then contract, the valves between the atria and ventricles close and the blood is pumped into the aorta and pulmonary artery. Explain the term blood pressure and describe the role it plays in the circulatory system. Describe the conditions high and low blood pressure. According to Blood Pressure UK, when your heart beats it pumps blood around your body to give it the energy and oxygen it needs. As the blood moves, it pushes against the sides of the blood vessels.
The Human Body System AC 2.1. Explain the structure and function of at least 3 to 4 systems 1) The Circulatory System; This system transports blood, full of oxygen and nutrients to and from the heart, and all around the rest of the human body. At the same time it transports out carbon dioxide and other unwanted material such as harmful minerals, waste material resulting from cellular breakdown, nitrogenous waste in liquid form, and food additives.These are then taken to the liver where they get transformed, or to the kidneys so that they can be excreted out as urine, or through the intestines. The components of this system are; the heart, blood, and blood vessels, and it has 2 circuits that transport blood around the pulmonary
They are thin, less elastic and less muscular than the walls of arteries because of the lack on blood pressure. They rely on the assistances of muscle contractions to push blood back to the heart. Some veins contain valves this is to prevent back flow. Venules small vessels that pick up blood from capillaries and deposit into large veins to be transported back to the heart. Musculoskeletal system The skeletal system includes all of the bones and joints in the body.
In the cardiovascular system the heart moves the blood around the body (acts like a pump) and different types of blood vessels (e.g. arteries, veins and capillaries) have well defined features that make viable their functions in the body’s circulatory system. The heart is pretty small because it is around the same size as a persons fist. The heart has four chambers on the inside (internal chambers) and these chambers accumulate blood and pump the blood to