Lab 8 LABELLED HEART WORKSHEET with ANSWER KEY Sp 21

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Saint Paul College *

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Medicine

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Apr 3, 2024

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HBS Lab 8 LABELLED HEART WORKSHEET WITH ANSWER KEY List of Heart Structures above: 1. superior vena cava 2. rt atrium 3. right AV valve or tricuspid valve 4. inferior vena cava 5. pulmonary semilunar valve 6. rt ventricle 7. aorta 8. pulmonary artery 9. left atrium 10.pulmonary vein 11.left AV valve or bicuspid 12.left ventricle 13.aortic semilunar valve Question 1: Number 2 is pointing to: a. the right atrium b. the left atrium c. the right ventricle 7. Aorta 8. Pulmonary Artery 11. Left AV Valve or Bicuspid Valve 9. Left Atrium 10. Pulmonary vein 12. Left Ventricle 6. Rt Ventricle 5. pulmonary semilunar valve 4. Inferior vena cava 1. rt atrium 2. superior vena cava 3.right AV valve or Tricuspid valve 13. aortic semilunar valve
Question 2: Number 5 is pointing to : a. right ventricle b. pulmonary semilunar valve c. pulmonary arch/trunk Question 3: Number 6 is pointing to : a. right ventricle b. right atrium c. Inferior vena cava d. right AV valve Question 4: Number 7 is pointing to: a. pulmonary trunk b. aorta c. c. superior vena cava Question 5: Number 11 is pointing to: a. Left Atrioventricular(a/v) valve b. left semilunar valve c. left ventricle Question 6: Number 8 is pointing to: a. pulmonary vein b. pulmonary artery c. pulmonary trunk Question 7: Number 3 is pointing to: a. right A/V or atrioventricular valve b. right atrium c. right ventricle Question 8: Number 1 is pointing to: a. right atrium b. left atrium c. superior vena cava Question 9: Number 4 is pointing to: a. inferior vena cava b. superior vena cava c. right atrium Question 10: Number 12 is pointing to: a. right ventricle b. left ventricle c. left atrium
11A. Name the two UPPER heart chambers for blood are the RIGHT ATRIUM ---------------- AND left ATRIUM -------- 11B. The two LOWER chambers for blood are the RIGHT --- VENTRICLE ------ AND left ---- VENTRICLE --------- 11C. The ____ RIGHT AV __ VALVE separates the RIGHT Atrium and RIGHT Ventricle 11D. The LEFT side of the heart/LEFT ATRIUM RECEIVES blood FROM the --- PULMONARY VEINS ----- 11E. The RIGHT side of the heart/RIGHT ATRIUM RECEIVES blood FROM the -------- SUPERIOR AND INFERIOR VENA CAVA - ------------------ 11F. The LEFT side of the heart/LEFT VENTRICLE PUMPS blood INTO the --------- LEFT SEMILUNAR OR AORTIC SEMILUNAR VALVE THAT OPENS INTO AORTA ----------------------- 11G. The RIGHT side of the heart/RIGHT VENTRICLE PUMPS blood TO the ------- PULMONARY SEMILUNAR VALVE LEADING TO PULMONARY ARCH TO PULMONARY ARTERIES THAT TAKES BLOOD TO LUNGS ------------ Question 12. The heart layer/wall that receives the electrical stimulus from the Pacemaker 0r (SA Node) is called: a. pericardium b. epicardium c. endocardium d. myocardium Question 13 . The partition between the two ventricles is called the a. left atrioventricular groove b. interatrial septum c. interventricular septum d. right atrioventricular groove Question 14. The pointed, inferior portion of the heart, known as the ________, oriented toward the left side of the body: a. base b. mediastinum c. apex d. pericardium
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Question15. The outer layer of the heart is called: a. epicardium b. myocardium c. fibrous pericardium d. endocardium Question16. The transportation of blood from the right side of the heart to the lungs and back to the left side of the heart is known as ________ circulation : a. systemic b. cardiac c . pulmonary d. coronary Question17. The tiny white strings or cords that anchor the AV valve to the walls of the ventricles are called the: a. chordae tendineae b. ligamentum arteriosum c. ductus venosus d. myocardium Question18. The length of the ONE cardiac cycle is normally ________ second(s) in length. a. 2 seconds b. 4 seconds c . 0.8 seconds d. 0.3 seconds Question19. The FIRST electrocardiogram (ECG) wave that results from the firing of the sinoatrial (SA) node is the: a. QRS wave b. T wave c . P wave d. S-T wave Question20. The tricuspid (AV) valve is located between the: a. right atrium and left atrium b. right atrium and right ventricle c. left ventricle and pulmonary artery d. left ventricle and aorta e. right ventricle and the pulmonary trunk True/False Questions: Highlight correct answer in different color font 1) Blood is returned to the right side of the heart from the lungs. Answer: TRUE/ FALSE 2) The chordae tendineae anchor the semilunar valves to the walls of the ventricles. Answer: TRUE/ FALSE 3) The alternate name for the bicuspid valve is the mitral valve. it is located between left atria and left ventricle.
Answer: TRUE /FALSE 4) The semilunar valves prevent the backflow of blood into the atria when the ventricles are contracting. Answer : TRUE/ FALSE 5) The sinoatrial (SA) node is the pacemaker of the electrical conduction system of the heart. Answer: TRUE /FALSE 7) During ventricular systole, blood is ejected from the ventricles through the large arteries connected to the heart. Answer: TRUE /FALSE 8) The average heart beats approximately 75 times per minute at rest. Answer: TRUE/ FALSE 9) Arteries branch into smaller vessels known as arterioles. Answer: TRUE/ FALSE 10) Exchanges between blood and tissue cells occur in the blood capillary beds. Answer: TRUE /FALSE