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Type O is considered the theoretical universal: (A) Donor because there are no anti-A or anti-B antibodies in plasma (B) Donor becasue there are no A or B isoantigens on RBCs nor are there anti-A or anti-B isoantibodies in plasma (C) Recipient because there are no anti-A or anti-B antibodies in plasma (D) Recipient because there are no A or B isoantigens on RBCs (E) Donor because there are no A or B isoantigens on RBCs
Donor because there are no A or B isoantigens on RBCs
Which of the following compnents are found within the formed elements section of blood: (A) Leukocytes (B) Erythrocytes (C) Thrombocytes (D) All of these
All of these
The function of the chordae tendineae is to: (A) Pulls the walls of the ventricles inward during contraction (B) Prevent inversion of the AV valves during ventricular systole (C) Open the semilunar valves (D) Hold the heart in place within the mediastinum (E) Open the AV valves
open the AV valves
The term afterload refers to: (A)End-systolic volume (B) The pressure that must be overcome before semilunar valves can open (C) The maximum possible cardiac output above resting cardiac output (D) The pressure in blood vessels necessary to cause the semilunar valves to close (E) End-diastolic volume
The pressure that must be overcome before semilunar valves can open
Most fluid and proteins that escape from blood vessels to the interstitial fluid are normally: (A) Absorbed into tissue cells (B) Returned to the blood via the heptic portal system (C) Returned to the blood via lymphatic system (D) Excreted via the urinary system (E) Reabsorbed via the urinary system
returned to the blood via the lymphatic system
Blood flows from the pulmonary veins into the: (A) Right atrium (B) Lungs (C) Left atrium (D) Left ventricule (D) Pulmonary arteries
Which of the following components are found in plasma: (A) Solutes (B) Water (C) All of these (D) Proteins
All of these
The bicuspid valve is located between the: (A) Right and left atria (B) Left atrium and left ventricule (C) Right and left ventricules (D) Right ventricules and the aorta (E) Right ventricule and the pulmonay trunks
The left atrium and the left ventricle
Blood flows from superior vena cava into the: (A) Inferior vena cava (B) Pulmonary trunk (C) Right atrium (D) Left atrium (E) Aorta
The apex of the heart is formed by the: (A) Tip of the right ventricule (B) Upper border of the left atrium (C) Tip of the left ventricule (D) Upper border of the right atrium (E) arch of the aorta
tip of the left ventricle
Which of the following lists the element of the heart's conduction system in the correct order? (A) SA node,AV bundle ,AV node, Bundle branches, conduction myofibers (B) SA node, AV node, AV bundle, Bundle branches, Conduction myofibers
SA node, AV node ,AV Bundle,Bundle branches,Conduction myofibers
The initiation of the heart beat is the responsibility of the: (A) cardiovascular center (B) Vagus nerve (C) Fossa ovalis (D) Baroreceptors (E) SA node
Blood in pulmonary capillaries that has just picked up oxygen will go next into: (A) Pulmonary veins to the right atrium (B) Pulmonary veins to the superior vena cava (C) Pulmonary arteries to the left atrium (D) Pulmonary arteries to the right atrium (E) Pulmonary veins to the left atrium
Pulmonary arteries to the left atrium
Vessels classified as muscular arteries are so-called because their primary function is distribution of blood to skeletal muscles T or F
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