Heart Anatomy SAS SP23_Megan Graham
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Robeson Community College *
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168
Subject
Anatomy
Date
Apr 3, 2024
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docx
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9
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Heart Anatomy Student Answer Sheet SP23
Once completed, upload the student answer sheet to the drop box provided. Part 1: Sheep Heart Exterior Labeling
Use the Heart Anatomy Lab Activity and the Lab Lecture slides to answer the following questions. Be sure to read the answer prompts to make sure you are supplying the correct answer. 1) Right Auricle
2) Right Atrium
3) Right Ventricle
4) Anterior Interventricular Sulcus
5) Apex
6) Epicardium
7) Left Ventricle
Part 2: Heart Model Exterior Labeling
When identifying vessels be sure to include right or left and artery or vein when naming!
8) Right Ventricle
9) Right Atrium
10) Aorta
11) Superior Vena Cava
12) Brachiocephalic Trunk
13) Left Common Carotid Artery
14) Left Subclavian Artery
15) Pulmonary Trunk
16) Right and Left Pulmonary Veins
17) Left Ventricle
Part 3: Sheep Heart Interior Labeling
18) Right Ventricle
19) Interventricular Septum
20) Apex
21) Bicuspid Valve
22) Chordae Tendineae
23) Left Ventricle
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24) Right Atrium
25) Papillary Muscles
26) Myocardium
27) Endocardium
Part 4: Heart Model Interior Labeling
28) Pulmonary Semilunar Valve
29) Right Atrium
30) Tricuspid Valve
31) Right Ventricle
32) Left Ventricle
33) Bicuspid Valve
34) Left Atrium
Part 5: Heart Sounds will be covered in a Virtual Lab (Connect)
Part 6: Coronary Circulation Anterior View
Identify the arteries and veins of the coronary circulation on this anterior view. Note: arteries are red and veins are blue in the coronary circuit. 35) Left Coronary Artery
36) Right Coronary Artery
37) Anterior Cardiac Vein
38) Marginal Artery
39) Small Cardiac Vein
40) Anterior Interventricular Artery
41) Great Cardiac Vein
42) Circumflex Artery
Part 7: Coronary Circulation Posterior View
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Identify the arteries and veins of the coronary circulation on this posterior view. Note: arteries are red and veins are blue in the coronary circuit. 43) Great Cardiac Vein
44) Posterior Vein of Left Ventricle
45) Coronary Sinus
46) Right Coronary Artery
47) Middle Cardiac Vein
48) Posterior Interventricular Artery
Part 8: Review Questions
49. What do all cells require in order to remain healthy?
- All cells require oxygen and nutrients in order to remain healthy.
50. What would happen to cells if the heart fails to pump sufficient volumes of blood, or if the vessels become blocked?
- If the heart fails to pump sufficient volumes of blood, or if the vessels become blocked, cells will not receive enough oxygen and nutrients, and will start to die. This can lead to tissue damage, organ failure, and death.
51. How many times will the heartbeat in an average lifetime of 75 years?
- The heart beats about 100,000 times a day, or about 2.5 billion times in an average lifetime of 75 years.
52. List the four chambers of the heart.
- The four chambers of the heart are the right atrium, the right ventricle, the left atrium, and the left ventricle.
53. What is the function of the atrioventricular valves?
- The function of the atrioventricular valves is to prevent the backflow of blood from the ventricles to the atria during ventricular contraction.
54. List the two AV valves and give their location. - The two AV valves are the tricuspid valve and the mitral valve. The tricuspid valve is located between the right atrium and the right ventricle, and the mitral valve is located between the left atrium and the left ventricle.
55. What internal structure separates the right and left ventricles?
- The internal structure that separates the right and left ventricles is called the interventricular septum.
56. Name the two semilunar valves and give their locations. - The two semilunar valves are the pulmonary valve and the aortic valve. The pulmonary valve is located at the exit of the right ventricle, and the aortic valve is located at the exit of the left ventricle.
57. Which ventricle extends to the apex of the heart?
- The left ventricle extends to the apex of the heart.
58. What are you actually hearing when you listen to the heartbeat? In other words, what is creating the lub-dub sounds that you are hearing?
- The lub-dub sounds you hear when you listen to the heartbeat are caused by the opening/closing of the heart valves. The first sound (lub) is made by the closing of the atrioventricular (AV) valves, and the semilunar (SL) valves opening; and the second sound (dub) is made by the closing of the semilunar (SL) valves and the atrioventricular (AV) valves opening.
59. Which circuit carries deoxygenated blood to the lungs?
- The circuit that carries deoxygenated blood to the lungs is called the pulmonary circuit.
60. Which circuit carries oxygenated blood to the body tissues?
- The circuit that carries oxygenated blood to the body tissues is called the systemic circuit.
61. Which circuit carries oxygenated blood to the cardiac muscles?
- The circuit that carries oxygenated blood to the cardiac muscles is called the coronary circuit.
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