Solution-Blood supply to the hearts myocardium | Homework Helpers

Question 1. When the semilunar valves are open, is the following statement true or false? The tricuspid and bicuspid valves are open.


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Question 2. When the semilunar valves are open, is the following statement true or false? The atria contract.

Question 3. When the semilunar vlaves of the heart are open, the following statement is true or false? The blood enters the aorta.

Question 4. When the semilunar valves are open, the following statement is true or false? The blood enters the pulmonary arteries.

Question 5. When the semilunar valves are open, the following statement is true or false? The ventricles are in systole.

Question 6. When the semilunar valves are open, the following statement is true or false? The ventricles are in diastole.

Question 7. Which of the following contribute(s) to venous return (blood returning to the heart)?

A. breathing or diaphragm action
B. one way valves in the veins
C. contraction of skeletal muscles
D. B and C only
E. A, B, and C

Question 8. The superior vena cava brings what blood to the heart?

A. Unoxygenated blood from the lower part of the body.
B. Oxygenated blood from the upper part of the body.
C. Oxygenated blood from the lower part of the body.
D. Unoxygenated blood from the upper part of the body.

Question 9. Blood supply to the heart’s myocardium is directly provided by the _____ artery(ies).

A. aorta
B. coronary
C. jugular
D. pulmonary

Question 10. The mitral valve is located between..

A. left atrium and left ventricle
B. right atrium and right ventricle
C. left ventricle and body
D. right ventricle and lungs

Question 11. Specialized cells of the right atrium that act as the heart’s pacemaker are called the:

a. Bundle of His
B. SA node
C. Purkinje fibers
D. AV node

Question 12. The inner lining of the heart is called the:

A. endocardium
B. myocardium
C. pericardium
D. tunicacardium

Question 13. A heart rate of 100 or more beats per minute (or faster than normal) is called:

A. arrhythmia
B. hypertension
C. bradycardia
D. tachycardia

Question 14. “Lupp” or S1 heart sound is due to:
A. closure of the bicuspid and tricuspid valves
B. contraction of the ventricles
C. relaxation of the ventricles
D. closure of the pulmonary and aorta semilunar valves
E. conraction of the atria

Question 15. A streptococcal infection may cause this:

A. murmurs
B. rheumatic heart disease
C. myocardial infaction
D. fibrillation
E. cerebral vascular accident (CVA)

Question 16. The Tunica Externa or Adventitia is the _______ layer of the blood vessel.

A. inner
B. miIDle
C. outer
D. only

Question 17. Use the following scenario for the next five questions (17 -21). John has been in a car accident and needs a blood transfusion; Sally wants to donate blood. John has type O+ blood and Sally has type A+ blood. Can Sally donate blood to John?


Question 18. John’s blood has __________ in its plasma.

A. A and B antibodies
B. A antibodies
C. B antibodies
D. O antibodies

Question 19. 19. Sally’s blood has ____________ on her RBCs. 
A. A antibodies
B. A antigens
C. B antigens
D. O antibodies

Question 20. Let’s change the scenario. If John donated blood to Sally, would Sally’s blood coagulate?”


Question 21. Do John and Sally have Rh antigens on their RBCs?


Question 22. Non-nucleated cells which transport oxygen from lungs to tissues and carbon dioxide from tissues to lungs.

A. Red blood cells (erythrocytes)
B. White blood cells (leukocytes)
C. Platelets (thrombocytes)
D. Neutrophils

Question 23. Granular leukocyte which phagocytizes bacteria.

A. Platelet
B. Basophil
C. Neutrophil
D. Eosinophil

Question 24. Cell type comprised of B cells and T cells.

A. basophil
B. lymphocyte
C. white blood cell
D. Monocyte

Question 25. Granular leukocyte which phagocytizes and increases in number during injury causing inflammation.

A. basophil
B. eosinophil
C. lymphocyte
D. monocyte

Question 26. Component of blood which contains protein, nutrients, electrolytes, gases, waste products, and water.

A. platelet
B. Rh antigen
C. plasma
D. cytoplasm

Question 27. This vessel is located medial to the bicipital area of the elbow.

A. brachial artery
B. popliteal artery
C. axillary artery
D. femoral artery

Question 28. The popliteal artery:

A. is found in the groin area.
B. is found behind the knee.
C. is found in the anterior aspect of the wrist on the thumb side.
D. is just left to the umbilicus.

Question 29. Located on the anterior side of the wrist on the little finger side.
A. radial artery
B. radial nerve
C. brachial artery
D. ulnar artery

Question 30. Hypertension
A. is low blood pressure.
B. is an infection in the blood.
C. is characterized by a consistent blood pressure of 140/90 or higher.
D. is where the lack of oxygen causes a bluish skin tint.

Question 31. Small vessels which have lots of elastic layers for vasoconstriction and control blood flow between capillaries and arteries are called:

A. venules
B. elastic arteries
C. continuous capillaries
D. arterioles

Question 32. Cyanosis

A. is due to the suIDen interruption of blood flow to the brain
B. is due to accumulated fatty substances in the arterial wall.
C. is where the lack of oxygen causes a bluish skin tint.
D. is due to lack of exercise.

Question 33. 120/80 is

A. Indicative of hypotension.
B. A normal blood pressure.
C. Indicates hypertension.
D. is indicative of excessive exercise.

Question 34. Atherosclerosis is due to:
A. smoking
B. exercise
C. accumulated fatty substances in the arterial wall.
D. small veins.

Question 35. Not smoking, exercise, reducing LDLs, and maintaining a good weight are the best way to prevent heart disease.


Question 36. The site of production for B-Lymphocytes.
A. lymph nodes
B. thymus gland
C. spleen
D. bone marrow

Question 37. Site of production of T-cells.

A. lymph glands
B. thymus gland
C. spleen
D. bone marrow

Question 38. Original site of production for lymphocytes.

A. Red bone marrow
B. thymus gland
C. liver
D. spleen

Question 39. The wall that separates the left and right ventricles is called:
A. the endocardium
B. the apex
C. the septum
D. the purkinje fibers

Question 40. The chamber of the heart which receives relatively unoxygenated blood from the body.

A. right atrium
B. right ventricle
C. left atrium
D. left ventricle

Question 41. The valve that opens to pump blood to the body other than the lungs (during systemic circulation.)

A. tricuspid
B. Mitral
C. pulmonary semilunar
D. aortic semilunar

Question 42. The blood vessel that brings venous blood flow from the lower body to the heart.

A. right brachial vein
B. right internal jugular vein
C. inferior vena cava
D. the femoral vein

Question 43. The thickest chamber of the heart which pumps the blood to the body.

A. right atrium
B. left atrium
C. right ventricle
D. left ventricle

Question 44. The valve which allows blood to flow from the right atrium to the right ventricle.

A. tricuspid
B. mitral
C. pulmonary semilunar
D. aortic semilunar

Question 45. The vessels carrying oxygenated blood from the lungs to the heart.

A. Pulmonary arteries
B. Pulmonary veins
C. Left brachial vein

Question 46. The conical tip which lies on the diaphragm, points to the left for most people, and allows the heartbeat to be heard most clearly.

A. the pinna
B. the septum
C. the apex
D. the bundle of His

Question 47. The large artery supplying main branches throughout the thorax.

A. Great sapphenous
B. aorta
C. inferior vena cava
D. hepatic

Question 48. The mitral valve lies between

A. right atrium and right ventricle
B. the right ventricle and the pulmonary trunk
C. the left atrium and left ventricle
D. the left ventricle and the aorta

Question 49. This vessel returns blood to the heart and lies under the clavicle.

A. brachiocephalic
B. the right subclavian artery
C. the left brachial vein
D. the left subclavian vein

Question 50. This vessel is often used in bypass surgeries and runs up the medial leg.

A. the femoral artery
B. the left great saphenous vein
C. the obturator
D. the common aortic bifurcation

Question 51. Used to return blood from the arm.

A. the left brachial vein.
B. the brachiocephalic artery
C. the carotid arteries
D. the jugular veins

Question 52. Provides venous return from the head.

A. right subclavian artery
B. left and right carotid arteries
c. left brachial vein
D. right internal jugular vein.

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