BIOS 255n DeVry Week 4 Midterm Exam

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BIOS 255n DeVry Week 4 Midterm Exam




BIOS 255n DeVry Week 4 Midterm Exam

Question 1. Question : (TCO3) Which of the following is a major function of blood?

  • production of enzymes
  • production of neurotransmitters
  • transduction of pressure
  • transportation of heat
  • contractility


Question 2. Question : (TCO3) Which of the following blood types is a person whose blood cells were agglutinated by anti-A serum but not by anti-B serum nor by anti-Rh serum

  • B Negative
  • B positive
  • negative
  • positive
  • A negative


Question 3. Question : (TCO3) Which of the following formed elements in blood only temporarily move through the blood before they become fixed in the tissues as macrophages?

  • erythrocytes
  • thrombocytes
  • monocytes
  • basophils
  • eosinophils


Question 4. Question : (TCO3) Reduced vitamin B12 absorption from the small intestine due to reduced intrinsic factor production from the stomach results in a condition called

  • hemorrhagic
  • aplastic anemia
  • megaloblastic anemia
  • pernicious anemia
  • iron deficiency anemia


Question 5. Question : (TCO3) Serum is

  • The same as plasma
  • plasma without the clotting factors
  • the same as lymph
  • formed during the first step in blood clotting
  • pulmonary interstitial fluid


Question 6. Question : (TCO3) Which of the following precursor cells give rise to T-cells?

  • myeloid stem cells
  • meyloblasts
  • lymphoid stem cells
  • proerythroblast
  • megakaryoblast


Question 7. Question : (TCO3) Which of the following opposes the action of thromboxane A2 by inhibiting platelet adhesion and release?

  • heparin
  • fibrinogen
  • plasmin
  • antithrombin
  • prostacyclin


Question 8. Question : (TCO3) Myeloid stem cells reside in

  • the blood
  • the yellow marrow
  • the thymus gland
  • the red marrow
  • the spleen


Question 9. Question : (TCO1) The tough, inelastic dense connective tissue that surrounds the heart is called the

  • endocardium
  • pleura
  • serous pericardium
  • fibrous pericardium
  • epicardium


Question 10. Question : (TCO1) During heart transplants, the ______ nerves are severed resulting in a faster resting heart rate (approximately 100 beats per minute) after the transplant

  • glossopharyngeal
  • cardiac accelerator
  • vagus
  • phrenic
  • cervical spinal


Question 11. Question : (TCO1) Which of the following factors lead to depressed cardiac output?

  • acidosis
  • alkalosis
  • hypoxia
  • all of the above
  • none of the above have any depressive effects on the heart


Question 12. Question : (TCO1) If a person’s resting heart rate is 70 and their resting stroke volume is 60 ml of blood, then their cardiac output is _______ L/min

  • 10
  • 4200
  • 4.2
  • 130
  • 1.3


Question 13. Question : (TCO1) The purpose of the foramen ovale during fetal life is to

  • have the blood bypass the stomach
  • have the blood bypass the liver
  • have the blood bypass the lungs
  • have the blood bypass the placenta
  • have the blood bypass the brain


Question 14. Question : (TCO1) Heart murmurs are often heard in individuals with abnormalities in the ____ of the heart.

  • valves
  • myocardium
  • SA node
  • AV node
  • endocardium


Question 15. Question : (TCO1) Which of the following electrocardiogram (ECG) waves represents ventricular repolarization?

  • R wave
  • Q wave
  • P wave
  • S wave
  • T wave


Question 16. Question : (TCO1) Which part of the brain contains the cardiovascular center that regulated heart rate?

  • midbrain
  • cerebrum
  • medullar oblongata
  • cerebellum
  • thalamus


Question 17. Question : (TCO1) Which layer of the heart is comprised of epithelial cells?

  • myocardium
  • epicardium
  • endocardium
  • pericardium
  • serous pericardium


Question 18. Question : (TCO2) Which of the following categories of hypertensive drugs lower blood pressure by blocking the formation of angtiotensin II, which results in vasodilation and decreased aldosterone secretion?

  • diuretics
  • ACE inhibitors
  • Beta blockers
  • calcium channel blockers
  • anabolic steroids


Question 19. Question : (TCO2) Which of the following categories would an individual with a blood pressure of 145/95 be placed in?

  • normal
  • high normal
  • prehypertension
  • stage 1 hypertension
  • stage 2 hypertension


Question 20. Question : (TCO2) Which of the following effectors would NOT be activated as described below in response to hypovolemic shock?

  • Adrenal cortex releases aldosterone
  • kidneys conserve salt and water
  • heart rate increases
  • systemic arterioles vasodilate
  • heart contractility increases


Question 21. Question : (TCO2) Which of the following blood vessels have high pulsing blood pressure?

  • Carotid artery
  • internal jugular vein
  • median cubital vein
  • inferior vena cava
  • none of the above


Question 22. Question : (TCO2) During fetal development, the blood from the pulmonary veins are shunted into the pulmonary arteries by the

  • ductus arteriousus
  • foramen ovale
  • ductus venosus
  • placenta
  • ligamentum arteriosum


Question 23. Question : (TCO2) Most capillaries throughout the body are

  • fenestrated capillaries
  • sinusoids
  • portal systems
  • vasoconstrictory throughputs
  • continuous


Question 24. Question : (TCO2) Capillaries are also referred to as

  • exchange vessels
  • vasoconstrictors
  • vasodilators
  • pressure reservoirs
  • distributing vessels


Question 25. Question : (TCO2) The volume of blood that circulates through the systemic blood vessels in one minute is called

  • stroke volume
  • tidal volume
  • cardiac output
  • cardiac reserve
  • total peripheral resistance


Question 26. Question : (TCO3) What is the pulse pressure of a person that has a systolic pressure of 150 mm Hg with a diastolic pressure of 90 mm Hg?


Question 27. Question : (TCO3) Determine the mean arterial pressure for a patient with an average systolic pressure of 120 mm Hg with a mean diastolic pressure of 60 mm Hg:


Question 28. Question : (TCO3) What is the resting cardiac output (in liters) of an athlete with a stroke volume of 75 ml and a resting heart rate of 60 beats/minute?


Question 29. Question : (TCO3) The same athlete during exercise has a heart rate of 180 beats/minute with an increase of stroke volume to 125 ml. What is their cardiac output during exercise?


Question 30. Question : (TCO3) What is the cardiac cycle for a person with a resting heart rate of 80 beats per minute?


Question 31. Question : (TCO3) What is the name of  the blood vessel that supplies the face and head (except the brain) with oxygenated blood?


Question 32. Question : (TCO3) What is the name of the blood vessel that is the distal extension of the external iliac artery as it enters the leg?


Question 33. Question : (TCO3)  What is the name of the blood vessel that drains deoxygenated blood from the medial aspect of the forearm?


Question 34. Question : (TCO3) What is the name of the vein that is found behind the kneecap on the posterior surface of the leg?


Question 35. Question : (TCO3) What is the name of this blood vessel that is highlighted?


Question 36. Question : (TCO3)  List and briefly describe the three mechanisms used to reduce blood loss from a damaged blood vessel.


Question 37. Question : (TCO1) Define arrhythmia and discuss different categories of arrhythmias.


Question 38. Question : (TCO2) What is a portal vein? Describe the hepatic portal circulation and its functional significance