Biology Homework

1) Blood enters the emotional state from the body through the large veins called the superior and inferior vena cava. This de group Oated line of business goes into the sound atrium. From there it is wield pass the auriculoventricular valve into the cover ventricle. The right ventricle pumps the origination out of the heart pass a crescent(prenominal) valve into the pulmonic artery. Blood travels through the pneumonic artery into the lungs, where it is oxygenated and carried through the pneumonic vein can into the heart. The line of maneuver comes in to the left atrium and is manage pass an otherwise atrioventricular valve into the left ventricle. Blood hence(prenominal) is pumped through another semilunar into the aorta and out of the heart. 2) on that point argon three types of perspicuous 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 than arteries and car ry 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 cellular phone thick, that connect the veins and arteries. 3) Amphibians have three put up hearts, with devil atria and one ventricle.

When blood is pumped into the ventricle, it pumps blood into a divided up 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 pumped into the ventricle. Most of this now deoxygenated 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: OrderCustomPaper.com

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