NUR 120 (MED/SURG - Test 4) Study Notes Questions with Correct Answers (Grade A+)

NUR 120 (MED/SURG - Test 4) Study Notes Questions with Correct
Answers (Grade A+)

Question 1: The heart is located within what?

Answer: Mediastinum

Question 2: The heart is about the size of what?

Answer: A fist

Question 3: How many chambers is the heart divided into?

Answer: 4

Question 4: How many gallons of blood travel through 60,000 miles of blood vessels a day in the human
body?

Answer: 2,000

Question 5: What does the right atrium receive from the body?

Answer: Deoxygenated blood

Question 6: The right atrium pumps blood to what ventricle?

Answer: Right ventricle

Question 7: The right ventricle pumps blood into what?

Answer: Pulmonary artery

Question 8: The left ventricle receives what from the pulmonary vein?

Answer: Oxygenated blood

Question 9: The left atrium pumps blood to what ventricle?

Answer: Left ventricle

Question 10: The left ventricle pumps what type of blood to the body through the aorta?

Answer: Oxygenated blood




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,Question 11: The tricuspid valve is located between what two things?

Answer: 1. Right atrium 2. Right ventricle

Question 12: The pulmonary semilunar valve is located between what two things?

Answer: 1. Right ventricle 2. Pulmonary artery

Question 13: The bicuspid valve is located between what two things?

Answer: 1. Left atrium 2. Left ventricle

Question 14: The aortic semilunar valve is located between what two things?

Answer: 1. Left ventricle 2. Aorta

Question 15: The first heart sound ("lubb") is heard due to the opening and closing of what two valves?

Answer: 1. Mitral 2. Tricuspid

Question 16: The mitral valve and the tricuspid valve are also referred to as what?

Answer: Atrioventricular (AV) valves

Question 17: The second heart ("dubb") is heard due to the opening and closing of what two valves?

Answer: 1. Pulmonary 2. Aortic

Question 18: The pulmonary valve and the aortic valve are also referred to as what?

Answer: Semilunar valves

Question 19: What node is considered the "pacemaker of the heart"?

Answer: Sinoatrial (SA)

Question 20: What node slows the impulse to allow the atria to fill the ventricles?

Answer: Atrioventricular (AV)

Question 21: What is conductivity as it relates to the heart?

Answer: Allows cells to be able to transfer electrical impulses from cell to cell




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, Question 22: What is irritability as it relates to the heart?

Answer: The ability to respond to stimulus of the heart

Question 23: What does the heart do for the body?

Answer: 1. Delivers oxygen 2. Delivers nutrients 3. Removes CO2 and waste from the cells

Question 24: What is the stroke volume?

Answer: The volume of blood pumped from the left ventricle per beat

Question 25: What is cardiac output?

Answer: The volume of blood the heart pumps in one minute

Question 26: What is preload as it relates to the heart?

Answer: The degree which fibers are stretched prior to heart contraction

Question 27: What is afterload as it relates to the heart?

Answer: Pressure that the heart must work against to eject/pump blood

Question 28: What is the formula used to determine cardiac output?

Answer: Heart Rate (X) Stroke Volume (=) Cardiac Output

Question 29: What is the FIRST valve that blood flows through in the heart?

Answer: Tricuspid

Question 30: What is the SECOND valve that blood flows through in the heart?

Answer: Pulmonary

Question 31: What is the THIRD valve that blood flows through in the heart?

Answer: Mitral

Question 32: What is the LAST valve that blood flows through in the heart?

Answer: Aortic




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