Question

Laboratory Review 14 1. What blood vessels connect arterioles to venules and exchange molecules with tissue fluid? 2. Which blood vessels return blood to the right atrium? & Does the pulmonary artery carry blood back to or away from the hear? 41s the blood entering the left ventricle Or-poor or Ornch? 5. What valve prevents the backflow of blood when the left ventricle relaxes? Which circuit delivers blood to the spleen, the pulmonary or the systemic? . What vessel transports blood to the liver from the digestive tract S. Do pulmonary veins carry O poor or O-rich blood? In additsion to the esophagus and the posterior vena cava, what structure passes through the diaphragm? 10. What is the name of the veins that serve the neck and head regions of the body? 11. What organs are served by the anterior mesenteric artery? 12. What arteries form from the branching of the posterior end of the aorta? 13. What is the name of the vein that is joined to the posterior vena cava by the venous duct (ductus venosus)? (Hint: it was cut when the abdominal cavity was exposed.) Which type of blood vessel (artery or vein) has a thick wall with a lot of smooth muscle that helps regulate blood pressure? 14. Thought Questions 15. Explain why narrowing or blockages of the coronary arteries can be life threatening, and identify which arteries, when blocked, increase the risk of having a stroke. Explain why an airline recently introduced an exercise video to combat deep vein thrombosis (clots that form in deep veins after prolonged inactivity). Consider the pressure of blood in veins and venous structure in your reply. 16. 17. In figures illustrating arteries and veins, arteries usually appear red and veins usually appear blue. Explain why the pulmonary arteries seen in Figure 14.2 uppear blue and the palmonary veins in Figure 14.2 appear red.

Answer 1

AS PER CHEGG POLICY, PROCEEDING TO ANSWER A MINIMUM OF FIRST QUESTION, OR, FIRST 4 SUB-QUESTIONS / PARTS / SUBPARTS, THAT IS, IN THIS CASE ONLY QUESTION 1 TO QUESTION 4, UNLESS SPECIFIED/INDICATED TO DO SPECIFIC QUESTIONS BY THE QUESTION UPLOADER:

ANSWER 1
Capillaries

ANSWER 2
Superior and inferior vena cavas

ANSWER 3
away from the heart

ANSWER 4
O₂ rich