HESI A2 AP: RESPIRATORY SYSTEM EXAM QUESTIONS

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HESI A2 A&P: RESPIRATORY SYSTEM EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -14 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation

Question 1: How is the respiratory system controlled?

Answer:

It is controlled by the respiratory control center in the medulla of the brain

Question 2: What is the function of the respiratory system?

Answer:

supply oxygen to the body and eliminate carbon dioxide

Question 3: What are the upper respiratory passageways lined with?

Answer:

They are lined with Cilia, which helps trap debris and keep foreign substances from entering the lungs

Question 4: How is carbon dioxide carried?

Answer:

Some is carried in solution or bound to blood proteins, but most is converted to bicarbonate ions by carbonic anhydrase within red blood cells

Question 5: What is CO2 a regulator of in the body?

Answer:

It is a regulator of blood pH because it releases hydrogen ions

Question 6: What does inhalation require?

Answer:

It requires the contraction of the diaphragm to enlarge the thoracic cavity and draw air into lungs

Question 7: How is oxygen released in the body?

Answer:

It is released from the hemoglobin as a concentration of oxygen drops in the tissues

Question 8: what is the internal respiration?

Answer:

refers to the exchange of gases between the blood and the body cells

Question 9: What does exhalation require?

Answer:

Passive process during which lungs recoil as the respiratory muscles relax and the thorax decrease in size

Question 10: What do the upper passageways do?

Answer:

serve to warm, filter, and moisten incoming air

Question 11: What do passageways between the nasal cavity and the alveoli do?

Answer:

they conduct gasses to and from the lungs

Question 12: How is most of the oxygen carried throughout the body?

Answer:

Most of it it bound by hemoglobin in red blood cells and carried throughout the body by blood

Question 13: What is the external respiration?

Answer:

the exchange of gases between the atmosphere and the blood through the alveoli

Question 14: What are some of the components of the respiratory system?

Answer:

Nose, pharynx, larynx, trachea, bronchi, lungs w/ their alveloi, diaphragm, and muscles surrounding the ribs