BIO 255 EXAM 4 Questions and Answers

BIO 255 EXAM 4 Questions and Answers After the tertiary bronchi, the next smaller branch of the respiratory passageway is (are) the terminal bronchioles. The nose serves all the following functions EXCEPT proprioception. Most inspired particles such as dust fail to reach the lungs because of the ciliated mucous lining in the nose. Which would be considered part of the respiratory zone of the respiratory system? alveoli Air and food are routed into the proper channels by the epiglottis. Select the CORRECT statement about the pharynx. The auditory tubes open into the nasopharynx. The blood vessel type bringing blood from the lungs to the heart is a(n) artery Blood in the pulmonary veins is ____. These vessels are indicated with ___ coloring in anatomical illustrations. oxygenated, red Which of the following is a regulatory function of blood? maintenance of normal pH in body tissues You obtain a tube of blood from a patient. The tube is centrifuged and you remove the clear liquid from the top layer. The liquid thus obtained is called plasma. The buffy coat of centrifuged blood consists mainly of white blood cells and platelets. Formed elements of the blood about 7-8 Um in diameter with no nuclei and a biconcave disc shape are erythrocytes. The function of hemoglobin is to carry oxygen. All blood cells originate from hemocytoblasts. The least abundant of the leukocytes are the basophils. The normal percentage of white blood cells that are neutrophils is above 60% No visible cytoplasmic granules are present in: monocytes Platelets are made in the __ and they circulate about __ days. red bone marrow, 9 What process stops your blood from leaking out if you cut yourself? hemostasis (coagulation) The right coronary artery supplies blood to the marginal artery and the posterior interventricular artery. Which blood vessel is part of pulmonary circulation? pulmonary vein Which type of capillary has only small intercellular clefts between its endothelial cells and is the type found in most tissues (e.g. skeletal muscle)? continuous capillaries The vessels that directly feed into capillary beds are called arterioles. Which blood vessel type has the thickest tunica media? distributing arteries Which of the following are involved directly in pulmonary circulation? right ventricle, pulmonary artery, and left atrium Select the correct statement about lymph transport. Lymph transport depends on the movement of adjacent tissues, such as skeletal muscles. Which cells produce plasma cells, which make antibodies? B cells (B-lymphocytes) Peyer's patches are found in the small intestine In the spleen, which disposes of worn-out erythrocytes? the red pulp Erythrocytes with cell surface antigen B (B blood type) will agglutinate when mixed with what other type of erythrocytes? Type A Which lymphoid cell controls immune system activity? T-lymphocytes Coronary arteries arise from the aorta