Biology Homework

1) Blood enters the lovingness from the body through the large veins called the high-performance and inferior vena cava. This de group Oated line of business goes into the function atrium. From there it is wield pass the auriculoventricular valve into the reform ventricle. The right ventricle pumps the origination out of the heart pass a crescent-shaped valve into the pulmonic arterial blood vessel. Blood travels through the pulmonic artery into the lungs, where it is oxygenated and carried through the pulmonary vein fanny into the heart. The line of regulate comes in to the unexpended atrium and is manage pass an otherwise atrioventricular valve into the left ventricle. Blood whence(prenominal) is pumped through another semilunar into the aorta and out of the heart. 2) on that point are three types of sensible argument vessels in the body. Arteries enrapture snag away from the heart and have thick somewhat fictile walls. Veins are on the most part smaller th an arteries and carry blood back to the heart. They have thinner and more plastic walls. With the exception of the Pulmonary artery and veins, oxygenated blood is carried by arteries and deoxygenated blood by veins. Capillaries are small blood vessels, only mavin blood cadre thick, that connect the veins and arteries. 3) Amphibians have three put up hearts, with cardinal atria and one ventricle.

When blood is pumped into the ventricle, it pumps blood into a divide vessel. One side of it is called the systemic circuit and the other is called the pulmonary circuit. The systemic circuit carries mostly oxygenated blood to the body. The blood then goes into the right atrium, where it is p umped into the ventricle. Most of this now d! eoxygenated blood goes into the pulmonary circuit. The pulmonary circuit goes to the lungs and skin, where the blood picks up oxygen and returns to the left atrium of the... If you want to get a full essay, nine it on our website: OrderEssay.net

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