BIOL 251 W3 Unit Exam 1 (53-Additional Questions and Answers) American Public

1. Question:Hormones produced and released from sex organs include which of the following? 2. Question:How many hormones are produced by the posterior pituitary? Question options: 3. Question: The development of a goiter indicates that _. 4. Question: The alpha cells of the pancreatic islets produce and secrete 5. _________. Question options: 6. Question: Which general type of hormone can easily pass through the cell membrane and into the cytoplasm of the cell? 7. Question: The function of the placental hormone human placental lactogen (hPL) is to _. 8. Question: The hypothalamus is functionally and anatomically connected to the posterior pituitary lobe by a bridge of 9. Question: The signaling done by the endocrine system is accomplished by the use of chemicals called _. 10. Question: The beta cells of the pancreatic islets produce and secrete 11. __________. Question options: 12. Question: The female's uterus secretes the following hormone: Question options: 13. Question: The two major organ systems that participate in relatively "long distance" communication in order to control and coordinate actions in the body are the _______ system and the 14. _______ system. 15. Question: Stage one of GAS is called the alarm reaction. This is short- term stress, the fight-or-flight response, mediated by the hormones __________ and ___________from the adrenal medulla. 16. Question: The primary hormones produced by the ovaries are _. 17. Question: The gonads produce what class of hormones? 18. Question: Which of the following statements about the thyroid gland is true? 19. Question: What is meant by the term anemia? 20. Question: Which of the following is/are important in the process named coagulation? 21. Question: Which of the following is the primary function of red blood cells? 22. Question: The most common blood type of all Americans is which of the following? 23. Question: Which of the following is/are true of red blood cells? Question options: 24. Question: The term formed elements in blood includes which of the following? 25. Question: Which of the following is/are true of platelets? 26. Question: Which of the following is/are important in the process named hemostasis by which the body seals a ruptured blood vessel and prevents further loss of blood? 27. Question: About 7% of plasma is made up of proteins. The most abundant of these plasma proteins is: 28. Question: Lymphocytes can be classified in the following group or groups: 29. Question: Which of the following is/are true of the molecule named hemoglobin? 30. Question: The term hematocrit is a measure of the percentage of red blood cells (RBCs) in a sample of blood. Which of the following statements is true? 31. Question: The pH of a liquid is a measure of its acidity or alkalinity. The normal range of pH of blood is: 32. Question: The blood type of a person's blood depends on which of the following factors? 33. Question: All formed elements found in blood arise from which of the following: 34. Question: When a coronary artery is totally obstructed to any one portion of the heart muscle, what occurs? 35. Question: The specific fibers which spread the electrical impulse to the cardiac muscle fibers are called: 36. Question: Let the left atrium = 1; the right atrium = 2; the left ventricle= 3; the right ventricle = 4. Blood then would flow through the heart in the following order: 37. Question: What can cause the normal heart rate to increase or decrease? 38. Question: The QRS-complex of an ECG represents which of the following: 39. Question: Which of the following statements about the circulatory system is/are correct? 40. Question: The period of time that begins with contraction of the atria and ends with ventricular relaxation is known as: 41. Question: The spontaneous action potential established in cardiac contractile cells is highly dependent on which of the following? 42. Question: A cardiac muscle cell is: 43. Question: Which of the following statement(s) is (are) true? 44. Question: Which of the following statements are considered to be normal? 45. Question: Which of the following statements about the left ventricle is/are true? 46. Question: Which of the following statements is/are true? Question options: 47. Question: In case of damage to the SA node, there are other sites in the heart which can depolarize and establish a rate of contraction of the cardiac muscle cells. For example: 48. Question: Which of the following statements about the internal structure of the heart is/are correct? 49. Question: One of the most important ways of investigating the function of the heart is called the "cardiac output." Which of the following facts is/are true? 50. Question: The arteries that supply blood to the myocardium of the heart are called: 51. Question: Which of the following parts of an ECG represents the depolarization of the atria? 52. Question: Which of the following statements about valves in the heart is/are true? 53. Question: The opening of any heart valve only occurs when: