26
The conducting zone begins at dropdown the and extends through the passageways of the pharynx, larynx, trachea, bronchi, and terminal bronchioles.
A.
Biol 252 Anatomy and Physiology II Module 5 Proctored ExamBiol 252 Anatomy And Physiology II Module 5 Proctored Exam
68 questions · Page 2 of 3
Biol 252 Anatomy And Physiology II Module 5 Proctored Exam is a nursing-school practice exam with 68 questions. It is written for nursing students preparing for this course exam and for NCLEX-style review. Every question has its own page showing the full stem, all answer options, the correct answer, and a written rationale explaining why each option is right or wrong.
Topics covered on this page: Biol 252 Anatomy and Physiology II Module 5 Proctored Exam.
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Start Practice ExamQuestions 26–50 of 68
27
An alveolar duct is a tube composed of dropdown and connective tissue, which opens into a cluster of alveoli.
A.
Biol 252 Anatomy and Physiology II Module 5 Proctored Exam28
Type Il alveolar cells secrete dropdown which reduces surface tension and prevents alveolar collapse.
A.
Biol 252 Anatomy and Physiology II Module 5 Proctored Exam29
One atmosphere (1 atm) is equal to 760 mmHg, which is the atmospheric pressure at sea level.
A. TrueB. False
Biol 252 Anatomy and Physiology II Module 5 Proctored Exam30
The movement of air into and out of the lungs requires a pressure gradient.
A. TrueB. False
Biol 252 Anatomy and Physiology II Module 5 Proctored Exam31
dropdown breathing, also known as shallow breathing, occurs due to changes in the rib cage shape.
A.
Biol 252 Anatomy and Physiology II Module 5 Proctored Exam32
Pneumothorax occurs when air enters the breaking the fluid bond that holds the lungs open.
A. AlveoliB. TracheaC. Pleural cavityD. Bronchioles
Biol 252 Anatomy and Physiology II Module 5 Proctored Exam33
Proper ventilation-perfusion coupling optimizes dropdown uptake and carbon dioxide removal.
A.
Biol 252 Anatomy and Physiology II Module 5 Proctored Exam34
Factors such as gravity effects on blood, blocked alveolar ducts, or disease can cause an imbalance in ventilation and perfusion.
A. TrueB. False
Biol 252 Anatomy and Physiology II Module 5 Proctored Exam35
The portion of hemoglobin that contains iron and binds oxygen is called
A. HemeB. CollagenC. MyosinD. Globin
Biol 252 Anatomy and Physiology II Module 5 Proctored Exam36
Each hemoglobin subunit contains an iron atom bound to the
A. HemeB. MyoglobinC. GlobinD. Plasma
Biol 252 Anatomy and Physiology II Module 5 Proctored Exam37
What happens to respiratory rate when oxygen demands increase?
A. It increasesB. It decreasesC. It remains the sameD. It stops
Biol 252 Anatomy and Physiology II Module 5 Proctored Exam38
A decrease in pneumotaxic output dropdown the respiratory pace and increases the depth of respiration.
A.
Biol 252 Anatomy and Physiology II Module 5 Proctored Exam39
Subject adaptation occurs when there is decreased sensitvity in chemoreceptors due to chronic stimulation.
A. TrueB. False
Biol 252 Anatomy and Physiology II Module 5 Proctored Exam40
What primarily drives the body's urge to breathe?
A. Lack of oxygenB. Activity of the respiratory musclesC. Need for АТРD. Accumulation of carbon dioxide
Biol 252 Anatomy and Physiology II Module 5 Proctored Exam41
What is the Valsalva maneuver used for?
A. To produce louder speech soundsB. To increase vocal pitch during singingC. To amplify sound in the oral cavityD. To stabilize the body during heavy lifting or defe
Biol 252 Anatomy and Physiology II Module 5 Proctored Exam42
What physiological change is associated with parasympathetic stimulation of the respiratory system?
A. Decreased airway resistanceB. Enlargement of the airway diameterC. Increased airflowD. Narrowing of the bronchioles
Biol 252 Anatomy and Physiology II Module 5 Proctored Exam43
Internal respiration is the physical movement of air into and out of the lungs.
A. TrueB. False
Biol 252 Anatomy and Physiology II Module 5 Proctored Exam44
Why is gas transport essential in the respiratory cycle?
A. To allow oxygen and carbon dioxide to reach and leB. To remove waste products through the skinC. To circulate white blood cellsD. To move nutrients between tissues
Biol 252 Anatomy and Physiology II Module 5 Proctored Exam45
What is the primary consequence of abnormalities in oxygen delivery to tissues?
A. Elevated oxygen levels in the bloodB. Enhanced tissue repairC. Hypoxia, which can lead to cell death and organ daD. Increased metabolic activity
Biol 252 Anatomy and Physiology II Module 5 Proctored Exam46
Which of the following best defines pulmonary ventilation?
A. The movement of air into and out of the lungsB. The contraction of diaphragm muscles onlyC. The oxygen content in arterial bloodD. The exchange of gases in the alveoli
Biol 252 Anatomy and Physiology II Module 5 Proctored Exam47
Which of the following statements correctly describes atmospheric pressure?
A. It only affects respiration during inhalation.B. It is the force exerted by surrounding air and is C. It is always lower than intrapleural pressure.D. It fluctuates during the breathing cycle.
Biol 252 Anatomy and Physiology II Module 5 Proctored Exam48
What must inspiratory muscles do to overcome resistance in the lungs?
A. Limit the airflow to maintain balanceB. Relax more quicklyC. Generate a stronger pressure gradientD. Decrease the thoracic cavity size
Biol 252 Anatomy and Physiology II Module 5 Proctored Exam49
What happens to the total pressure of a gas mixture when the partial pressures of all gases are added together?
A. It doublesB. It remains unchangedC. It decreasesD. It equals the sum of the partial pressures
Biol 252 Anatomy and Physiology II Module 5 Proctored Exam50
According to the oxygen-hemoglobin dissociation curve, what happens as the partial pressure of oxygen increases?
A. Oxygen binds less effectively to hemoglobinB. Carbon dioxide displaces oxygen from hemoglobinC. Hemoglobin is unable to transport oxygenD. A greater number of oxygen molecules bind to heme
Biol 252 Anatomy and Physiology II Module 5 Proctored Exam