Choose all answers that are correct. There can be more than one correct answer.A few veins carry blood away from the heart.Veins always carry blood to the heartArteries always carry oxygenated blood.A few veins carry oxygenated blood.Most veins carry deoxygenated bloodArteries always carry blood away from the heartThe high pressure in veins help blood return to the heart.veins have valves to prevent backflow of blood

Arteries and veins are the two transportation pathways of oxygenated and deoxygenated blood.…

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Biology

Choose all answers that are correct. There can be more than one correct answer.

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter40: The Circulatory System

Section: Chapter Questions

Problem 1VCQ: Figure 40.10 Which of the following statements about the circulatory system is false? Blood in the...

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Figure 40.10 Which of the following statements about the circulatory system is false? Blood in the pulmonary vein is deoxygenated. Blood in the inferior vena cava is deoxygenated. Blood in the pulmonary artery is deoxygenated. Blood in the aorta is oxygenated.
Figure 40.11 Which of the following statements about the heart is false? The mitral valve separates the left ventricle from the left atrium. Blood travels through the bicuspid valve to the left atrium. Both the aortic and the pulmonary valves are semilunar valves. The mitral valve is an atrioventricular valve.
_____ contraction drives blood through the systemic and pulmonary circuits; outside the heart, blood pressure is highest in the _____. a. Atrial; ventricles b. Atrial; atria c. Ventricular; arteries d. Ventricular; aorta
True or false Blood pressure is a product of cardiac output and resistance. Blood pressure is lowest in the vena cava The pulse is felt at the large veins Arterioles are the most important vessels in regulation blood pressure. Veins and lymph vessels have valves Only arteries have smooth muscles Veins always carry deoxygenated blood.
Which of the following is incorrect? Group of answer choices The walls of the cappillaries are thick. Vasoconstriction is one way to control blood flow. The walls of the veins are thin. There are no valves in the arteries. Veins carry blood into the heart.
There is a semilunar valve between the_____ and _____ right ventricle and the aorta. left ventricle and the aorta left atrium and the pulmonary trunk. right atrium and the right ventricle. left ventricle and the pulmonary trunk. blood group is AB negative. He can therefore donate blood to people who are: A negative and B negative AB positive and AB negative A negative; A positive;AB negative and AB positive all blood groups
What is the purpose of the second aorta in alligators and crocodiles? What would happen if they simply shut off the pulmonary artery without having the left aorta? Choos the best answer the left aorta helps increase the blood supply to their digestive system All vertebrates have two aortas, only the left aorta is usually called the pulmonary vein The left aorta ensures uninterrupted circulation when the pulmonary artery is closed
Choose all the statements that are correct. When the heart beats, first the right side of the heart contracts, and then the left side of the heart contracts. That is one heartbeat. The sympathetic nervous system speeds up the heart rate and the parasympathetic system slows down heart rate. M Bradycardia is when the heart beats faster than normal. The SA node is the pacemaker of the heart. Coronary arteries deliver blood to the muscle of the heart. A heart attack is a myocardial infarction. The ECG (EKG) has a QRS wave that represents ventricular depolarization (the message to tell the ventricle to contract. The heart needs nerve stimulation in order to contract.
Blood is pushed out of the heart through a large vessel, called the aorta. The aorta then divides into smaller and smaller blood vessels, eventually reaching vessels called capillaries. Capillaries are so small that oxygen and nutrients can diffuse across the vessel walls and into the tissues of the body, with CO2 and waste diffusing back into the blood. Let's say that the cross-sectional area of the aorta is 1 cm2 = 100 mm2. The blood pumps through the aorta at 100 mm/s but only through the capillaries at 1 mm/s. If each capillary has a cross-sectional area of 20 mm2, how many capillaries must there be in the body? Note: these numbers are not physiologically correct, but were chosen to make the math easier. The blood velocity through the aorta is closer to 300 mm/s. The capillaries have a total cross-sectional area of ~600,000 mm2 (6000 cm2), with a blood flow rate closer to 0.2 mm/s.
Which of the following statements best describes systolic blood pressure? Systolic blood pressure depends upon the force of the heart contractions - the stronger the contractions the higher the systolic pressure will be. Systolic blood pressure depends on how tightly the cuff of the sphygmomanometer is tightened. Systolic blood pressure depends upon the resistance of the blood vessels - the greater the resistance to blood flow the higher the systolic pressure will be. Systolic blood pressure depends upon the force and frequency of the heart contractions - the stronger and more frequent the contractions the higher the systolic pressure will be.
Choose all the correct statements. The right atrium receives deoxygenated blood from the body cells. Blood in the left ventricle is oxygenated and is sent out through the aorta to all the cells of the body. Blood in the left ventricle is pumped into the pulmonary artery. The superior and inferior vena cava deliver deoxygenated blood to the right atrium. The heart has 2 ventricles and 3 atria. The mitral valve is the tricuspid valve. The surface of the heart is covered by the visceral pericardium. The left side of the heart pumps blood to the lungs.
Describe the flow of blood through the heart from where it returns to the heart through where it leaves to travel to body tissues. Make sure to include all appropriate anatomical structures. Don't copy from Google