WorksheetsA&P Day 9
Total questions: 20
Worksheet time: 10mins
Which structure is primarily responsible for gas exchange in the lungs?
Trachea
Alveoli
Bronchi
Pleura
What is the main muscle involved in the process of inhalation?
Diaphragm
Intercostal muscles
Abdominal muscles
Pectoralis major
Which blood vessel carries oxygenated blood from the lungs to the heart?
Pulmonary artery
Pulmonary vein
Aorta
Superior vena cava
Which of the following is a common chronic respiratory disease characterized by airway inflammation and hyperresponsiveness?
Asthma
Tuberculosis
Pneumonia
Lung cancer
What is the primary function of the epiglottis in the respiratory system?
Produces mucus
Prevents food from entering the trachea
Warms and humidifies air
Facilitates gas exchange
Which of the following best describes the process of external respiration?
Exchange of gases between blood and tissues
Exchange of gases between alveoli and blood
Cellular use of oxygen to produce energy
Movement of air into and out of the lungs
Which structure divides the right and left lungs?
Diaphragm
Mediastinum
Pleural cavity
Bronchus
Which of the following is a symptom commonly associated with chronic obstructive pulmonary disease (COPD)?
Sudden chest pain
Persistent cough with sputum
High fever
Swollen lymph nodes
Which part of the respiratory system listed bellow is lined with ciliated pseudostratified columnar epithelium?
Alveoli
Trachea
Diaphragm
Pleura
Which of the following best describes the role of surfactant in the lungs?
Increases airway resistance
Reduces surface tension in alveoli
Promotes mucus production
Enhances oxygen binding to hemoglobin
A patient presents with shortness of breath and a productive cough and low grade fever. You not the patient is overweight on home O2 and appears cyanotic. Based on these symptoms, which respiratory disease is most likely?
Asthma
Chronic bronchitis
Pulmonary embolism
Pneumothorax
If the partial pressure of oxygen in the alveoli decreases, what effect does this have on oxygen diffusion into the blood?
Increases diffusion
Decreases diffusion
No effect
Causes carbon dioxide to diffuse faster
Which of the following best explains why patients with emphysema have difficulty exhaling?
Airway constriction prevents air entry
Loss of alveolar elasticity impairs recoil
Excess mucus blocks the trachea
Diaphragm paralysis
A person inhales air containing a high concentration of carbon monoxide. How does this affect oxygen transport in the blood?
Increases oxygen binding to hemoglobin
Decreases oxygen binding to hemoglobin
Increases carbon dioxide transport
No effect on oxygen transport
During exercise, how does the body increase the rate of gas exchange in the lungs?
By decreasing cardiac output
By increasing respiratory rate and tidal volume
By constricting pulmonary capillaries
By reducing alveolar surface area
A patient with pneumonia has fluid accumulation in the alveoli. How does this affect gas exchange?
Increases oxygen diffusion
Decreases oxygen diffusion
No effect on gas exchange
Increases carbon dioxide removal
A patient with a pulmonary embolism is experiencing hypoxemia. Using your knowledge of pulmonary circulation, explain why this occurs.
The embolism increases alveolar ventilation
The embolism blocks blood flow, reducing gas exchange
The embolism increases oxygen diffusion
The embolism causes bronchoconstriction
Given the equation for oxygen diffusion rate: Rate=k×A×d(P1−P2) , where A is surface area, P1−P2 is the partial pressure difference, and d is the diffusion distance, predict what happens to the rate of oxygen diffusion if alveolar walls thicken due to fibrosis.
Rate increases
Rate decreases
Rate remains unchanged
Rate becomes zero
A patient with left-sided heart failure develops pulmonary edema. Using your understanding of pulmonary circulation, explain how this condition impairs respiratory function.
Edema increases alveolar surface area for gas exchange
Edema decreases diffusion distance for gases
Edema increases diffusion distance, reducing gas exchange efficiency
Edema has no effect on gas exchange
Which cell produces antibodies to fight infection?
