Test Review

• Which of the following processes DOES NOT occur when the blood clots.

  Thrombin converts fibrin into fibrinogen
• Which of the following statements about vascular spasms is false?

  It occurs when smooth muscle cells surrounding the blood vessels relax, increasing the vessel's diameter
• The largest of all the white blood cells (WBCs) is the _______.

  monocyte
• The doctor sticks your finger, takes some blood, and does a WBC count. The count (12,500 cells/mm3) indicates leukocytosis. What could you conclude?

  It is a high WBC count, indicating a bacterial or viral infectionSee an expert-written answer!We have an expert-written solution to this problem!
• Placing pressure on a cut will constrict blood vessels manually, and encourages ________.

  Vascular spasms
• Spectrin is responsible for

  Keeping biconcave shape of the RBCs
• White blood typing, the sample is mixed with anti-A serum and anti-B serum. There is no agglutination. You could conclude that__________.

  The sample is Type O
• Which of the following is the correct pathway of impulse travel through the heart?

  SA Node-AV Node- Atrioventricular bundle- Purkinje fibers
• You are not an athlete and you are not physically fit. If you suddenly partake in physical exercise, the increased demands of such vigorous exercise on your body are met primarily by _______.

  Increased heart rate
• Blood exits the left ventricle in which of the following blood vessels?

  Aorta
• Which of the following would lead to a decrease in cardiac output?

  A decrease in venous return
• Which of the following blood vessels carries oxygen-rich blood?

  Pulmonary veins
• Which of the following is NOT a major branch of the coronary arteries?

  Coronary sulcus
• During atrial systole

  The atrial pressure exceeds ventricular pressure
• Atrial repolarization coincides in time with the

  QRS wave
• How many cusps does the right atrioventricular valve have?

  3
• Which of the following vessels does NOT return blood to the right atrium of the heart?

  Pulmonary vein
• Which phase of the cardiac cycle immediately follows the isometric relaxation phase?

  Atrial diastole
• What is the largest artery in the body?

  Aorta
• The layer of the heart wall synonymous with the visceral layer of the serous pericardium is:

  Epicardium
• The correct sequence of layers of a typical blood vessel, from superficial to deep, are____________________

  Tunica externa, Tunica media, Tunica intima
• Which of the following is NOT a method or pathway of movement for substances traveling across a capillary wall?

  Active transport using proteins and ATP
• Veins draining the head and arms empty into the ________, which carries blood to the right atrium of the heart.

  Superior vena cavaSee an expert-written answer!We have an expert-written solution to this problem!
• At the arterial end of a capillary, blood pressure is __________ than osmotic pressure, and fluid flows_________ the capillary.

  More; out of
• The path of blood flow within the systemic vascular system is:

  Arteries, Arterioles, Capillary beds, venules, veins