ALL BMS MATERIAL
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Questions and Answers

Which structure is NOT included in the respiratory zone for gas exchange?

  • Alveolar sacs
  • Alveoli
  • Trachea (correct)
  • Respiratory bronchioles

What type of muscle makes up the walls of the pharynx?

  • Smooth muscle
  • Striated muscle
  • Skeletal muscle (correct)
  • Cardiac muscle

Which structure is responsible for providing a resonating chamber for speech sounds?

  • Pharynx (correct)
  • Larynx
  • Epiglottis
  • Cricoid cartilage

The larynx is composed of how many pieces of cartilages?

<p>9 (C)</p> Signup and view all the answers

What is the function of the larynx in relation to the trachea?

<p>Connects the laryngopharynx with the trachea (A)</p> Signup and view all the answers

Which cartilage in the larynx is commonly known as 'Adam’s apple'?

<p>Thyroid cartilage (B)</p> Signup and view all the answers

What is the main role of the epiglottis during swallowing?

<p>Close off the trachea to prevent food from entering (A)</p> Signup and view all the answers

Which structure directly connects the laryngopharynx with the trachea?

<p>Cricoid cartilage (A)</p> Signup and view all the answers

Which term describes the supportive stroma in neoplasms made up of blood vessels and connective tissue?

<p>Reactive stroma (B)</p> Signup and view all the answers

From which type of origin are sarcomas derived?

<p>Mesenchymal origin (D)</p> Signup and view all the answers

What does the term 'neoplasia' refer to?

<p>Various types of growths including benign and malignant tumors (A)</p> Signup and view all the answers

Which term is used to describe tumors that show characteristics similar to those of local cells?

<p>Adenoma (A)</p> Signup and view all the answers

What is the main characteristic that distinguishes benign tumors from malignant ones?

<p>Degree of differentiation (B)</p> Signup and view all the answers

Which term describes tumors that are usually dependent on the embryonic origin of the affected tissue?

<p>Sarcomas (D)</p> Signup and view all the answers

What is one of the classifications of neoplasms based on their behavior?

<p>Degree of differentiation (C)</p> Signup and view all the answers

Which component of neoplasms consists of the proliferating abnormal cells that form the main tumor mass?

<p>Neoplastic cells (B)</p> Signup and view all the answers

What is the main effect of an increase in PCO2 on the saturation of hemoglobin with oxygen?

<p>The saturation of hemoglobin with oxygen decreases (D)</p> Signup and view all the answers

How does an increase in temperature affect the release of oxygen from hemoglobin?

<p>It increases the release of oxygen (A)</p> Signup and view all the answers

What is the role of 3-biphosphoglycerate (BPG) in the context of hemoglobin?

<p>It decreases the affinity of hemoglobin for oxygen (D)</p> Signup and view all the answers

Which form transports the highest percentage of CO2 in blood plasma?

<p>Bicarbonate ions (A)</p> Signup and view all the answers

What is the main reason behind an increase in hydrogen ions when PCO2 rises?

<p>Conversion to bicarbonate ions (A)</p> Signup and view all the answers

How does a decrease in 3-biphosphoglycerate (BPG) impact the affinity of hemoglobin for oxygen?

<p>Increases the affinity (B)</p> Signup and view all the answers

Which factor leads to an increase in O2 release from hemoglobin, promoting a right shift in the curve?

<p>Increased BPG levels (A)</p> Signup and view all the answers

Why does deoxygenated blood returning to pulmonary capillaries contain CO2 incorporated into HCO2 within RBCs?

<p>To restore pH balance (D)</p> Signup and view all the answers

What is the most frequently reported symptom of interstitial lung disease?

<p>Gradual cough (A)</p> Signup and view all the answers

Which of the following is NOT a potential cause of interstitial lung disease?

<p>Viral infection (A)</p> Signup and view all the answers

What is the main diagnostic approach for interstitial lung disease?

<p>Pulmonary function tests (A)</p> Signup and view all the answers

Which ethnic group has the highest prevalence of sarcoidosis?

<p>African Americans (D)</p> Signup and view all the answers

What are the ocular manifestations commonly associated with sarcoidosis?

<p>Anterior and intermediate uveitis (C)</p> Signup and view all the answers

Which organ does sarcoidosis primarily affect?

<p>Lungs (C)</p> Signup and view all the answers

What is the typical age range at which sarcoidosis is commonly diagnosed?

<p>Before 50 years old (C)</p> Signup and view all the answers

Which of the following symptoms is NOT commonly associated with sarcoidosis?

<p>Chest pain (C)</p> Signup and view all the answers

How does an increase in temperature affect the release of oxygen from hemoglobin?

<p>It increases the amount of O2 released. (C)</p> Signup and view all the answers

What is the main role of 3-biphosphoglycerate (BPG) in the context of hemoglobin?

<p>It promotes the release of O2 from hemoglobin. (A)</p> Signup and view all the answers

What is one of the main effects of an increase in PCO2 on hemoglobin saturation with oxygen?

<p>Increases O2 saturation. (C)</p> Signup and view all the answers

How is most of the CO2 transported in the blood?

<p>In bicarbonate ions. (D)</p> Signup and view all the answers

What happens to Hb saturation when PCO2 increases?

<p>Hb affinity for O2 decreases. (C)</p> Signup and view all the answers

How does 3-biphosphoglycerate (BPG) impact the affinity of hemoglobin for oxygen?

<p>Reduces hemoglobin's affinity for O2. (D)</p> Signup and view all the answers

Why does deoxygenated blood returning to pulmonary capillaries contain CO2 incorporated into HCO3 within RBCs?

<p>To aid in CO2 transport. (C)</p> Signup and view all the answers

What is the common etiological classification of pneumonia?

<p>Community-acquired vs. hospital-acquired (B)</p> Signup and view all the answers

Which bacterial organism is NOT commonly associated with community-acquired pneumonia?

<p>Pseudomonas aeruginosa (D)</p> Signup and view all the answers

What is a characteristic feature of hospital-acquired bacterial pneumonia organisms?

<p>Gram-negative bacteria (C)</p> Signup and view all the answers

Which viral group is NOT typically involved in community-acquired pneumonia?

<p>Toxoplasma gondii (A)</p> Signup and view all the answers

Which fungal pathogen is NOT known to cause pneumonia?

<p>Strongyloides stercoralis (B)</p> Signup and view all the answers

What is a key epidemiological feature of upper respiratory tract infections in adults?

<p>Adults experience 3-4 infections per year on average (A)</p> Signup and view all the answers

What is a distinguishing characteristic of community-acquired pneumonia?

<p>Abnormal opacities in the lungs on imaging (C)</p> Signup and view all the answers

In which type of hypersensitivity reaction do antigen-antibody complexes initiate an acute inflammatory response?

<p>Type III (B)</p> Signup and view all the answers

What is the main role of complement C3a and C5a in Type II hypersensitivity reactions?

<p>Chemotaxis (C)</p> Signup and view all the answers

Which process involving antibodies leads to the formation of the membrane attack complex and cell lysis?

<p>Complement activation (A)</p> Signup and view all the answers

What is the primary cause of cellular dysfunction in Type II hypersensitivity reactions involving antibodies?

<p>Antibody binding to receptors (D)</p> Signup and view all the answers

In which condition can antibodies cause cellular dysfunction without inducing inflammation or destruction?

<p><strong>Type III hypersensitivity reaction</strong> (C)</p> Signup and view all the answers

What is the main outcome of the accumulation of antigen-antibody complexes in various tissue locations?

<p><strong>Inflammation</strong> (D)</p> Signup and view all the answers

Which component of the immune system is primarily responsible for initiating an acute inflammatory reaction in serum sickness?

<p><strong>Neutrophils</strong> (A)</p> Signup and view all the answers

What distinguishes Arthus reaction from serum sickness in terms of immune complex deposition?

<p><strong>Arthus reaction has circulating immune complexes, whereas serum sickness has fixed immune complexes.</strong> (C)</p> Signup and view all the answers

How do antibodies contribute to the complement pathway activation in Type II hypersensitivity reactions?

<p>By binding to self-antigens resulting in complement C3a and C5a formation. (C)</p> Signup and view all the answers

What is the recommended diagnostic test for young patients suspected of having chronic obstructive pulmonary disease (COPD)?

<p>Alpha-1 antitrypsin deficiency test (D)</p> Signup and view all the answers

Which intervention is the only one that can potentially reverse or cure COPD?

<p>Lung transplant (D)</p> Signup and view all the answers

What is the main cause of chronic bronchitis?

<p>Hypersecretion of mucus due to goblet cells (C)</p> Signup and view all the answers

What percentage of healthy adults are estimated to have chronic bronchitis?

<p>5-8% (C)</p> Signup and view all the answers

What is the primary treatment approach for managing symptoms of chronic bronchitis?

<p>Risk-factor modification and bronchodilators (C)</p> Signup and view all the answers

What is the characteristic sign/symptom that distinguishes chronic bronchitis from other respiratory conditions?

<p>Productive cough lasting 3 months or more (C)</p> Signup and view all the answers

Which population group has a higher risk of developing chronic bronchitis?

<p>Elderly patients and smokers (B)</p> Signup and view all the answers

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