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Which blood vessel returns oxygenated blood to the heart?

Aorta

Inferior vena cava

Pulmonary artery

Pulmonary vein (correct)

Match the layers of heart with their positions.

Middle layer of muscle tissue in the heart = Myocardium Outermost layer of the heart = Epicardium Innermost layer of the heart = Endocardium

Venous blood returning from the body enters which chamber of the heart first?

Left atrium

Right atrium (correct)

Left ventricle

Right ventricle

Which structures would the nurse recognize as parts of the upper respiratory tract? Select all that apply.

Nose, nasal cavity Signup and view all the answers

Through which parts of the respiratory tract does air flow after moving through the trachea? Select all that apply.

Bronchioles Signup and view all the answers

Which term reflects the process of oxygen diffusing across alveolar walls into pulmonary capillaries?

External respiration Signup and view all the answers

Which description represents the process of exhalation?

Intraalveolar pressure rising above atmospheric pressure Signup and view all the answers

Which systems are major factors in oxygenation and perfusion? Select all that apply.

Respiratory Signup and view all the answers

Which chronic respiratory disorder may decrease oxygenation?

Asthma Signup and view all the answers

Which location of the respiratory centers would the nurse identify when explaining respiratory failure to a patient’s family?

Brain Signup and view all the answers

In which order does blood flow through the heart?

Deoxygenated blood enters the right atrium via the superior vena cava, inferior vena cava, and coronary sinus. = 1 . Blood enters the lungs via the pulmonary arteries, and gas exchange occurs through the pulmonary capillary system. Blood flows through pulmonary veins to the left atrium. = 3,4 Blood passes through the tricuspid valve to the right ventricle. = 2 Blood moves through the mitral valve to the left ventricle. Blood moves through the aortic valve into the aorta. = 5,6 Signup and view all the answers

Which response would the nurse give to a patient with weak right ventricular systole who asks “What is wrong with my heart?”

“The right side of your heart is not pumping with enough force to propel an adequate amount of blood to the lungs.” Signup and view all the answers

Which heart wall changes would the nurse expect in a patient with damage to the epicardium?

Impaired secretion of serous fluid Signup and view all the answers

Which information would the nurse include when teaching about the heart?

The heart has two atrial chambers and two ventricular chambers. Signup and view all the answers

Which trigger of inspiration would the nurse include when teaching a patient with a chronic respiratory disease about the breathing process?

Impulses in the respiratory center of the brain Signup and view all the answers

Which statement describes the role of the phrenic nerve during the inspiratory phase of respiration?

Stimulates the diaphragm to move downward Signup and view all the answers

In which order does the process of inspiration and expiration occur?

The phrenic nerve stimulates the diaphragm to move downward, and the intercostal nerve causes the intercostal muscles to contract. = 2 The respiratory center in the brain sends an impulse to nerves. = 1 The chest cavity expands, causing decreased intraalveolar pressure. . Atmospheric pressure exceeds intraalveolar pressure, causing air to move into the respiratory tract and the lungs to fill with air. Atmospheric pressure exceeds intraalveolar pressure, causing air to move into the respiratory tract and the lungs to fill with air. = 3, 4 The diaphragm relaxes, and intraalveolar pressure increases. Air is forced out from the lungs. = 5,6 Signup and view all the answers

Which factors influence the binding of oxygen to hemoglobin? SATA

pH Signup and view all the answers

Which acute respiratory disorder may decrease oxygenation?

Pneumonia Signup and view all the answers

Which factors that control blood vessel diameter would the nurse include when teaching about factors affecting oxygenation and perfusion?

Oxygen Signup and view all the answers

Overview of oxygenation and perfusion Week 2-sherpath

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