Nokea
which component of pharynx received the Eustachian tube
- A. oropharynx
- B. laryngopharynx
- C. Nasopharynx
- D. none of these
Correct Answer: C
Rationale: The correct answer is C: Nasopharynx. The Eustachian tube connects the middle ear to the nasopharynx, allowing for pressure equalization. The oropharynx (A) and laryngopharynx (B) do not directly receive the Eustachian tube. Choice D is incorrect as the Eustachian tube does connect to a specific part of the pharynx.
You may also like to solve these questions
What keeps alveoli from collapsing?
- A. Carina
- B. Surfactant
- C. Empyema
- D. Thoracic cage
Correct Answer: B
Rationale: Surfactant is a substance that prevents the collapse of alveoli by reducing surface tension, allowing them to remain open and functional during the breathing process.
A 64-year-old female is admitted to the hospital. She has smoked two packs per day for 30 years. While providing her history, she becomes dyspneic and appears very anxious. She has a cough with thick white sputum production. Her chest is barrel shaped. Based on these data, the nurse will need to develop a plan of care for a client with?
- A. Pneumonia.
- B. Chronic obstructive pulmonary disease.
- C. Tuberculosis.
- D. Asthma.
Correct Answer: B
Rationale: The correct answer is B: Chronic obstructive pulmonary disease (COPD). The patient's smoking history, dyspnea, anxiety, chronic cough with sputum production, and barrel-shaped chest are indicative of COPD. Smoking is the primary cause of COPD, leading to airway inflammation and airflow limitation. The dyspnea, cough, and sputum production are common symptoms of COPD due to air trapping and mucus hypersecretion. The barrel-shaped chest is a sign of hyperinflation of the lungs seen in COPD patients. Pneumonia (A) typically presents with symptoms like fever and productive cough, not necessarily dyspnea and barrel chest. Tuberculosis (C) commonly presents with weight loss, night sweats, and hemoptysis, not the symptoms described. Asthma (D) often presents with wheezing, chest tightness, and reversible airflow obstruction, not the chronic symptoms described in this case.
A slightly obese female client with a history of allergy-induced asthma, hypertension, and mitral valve prolapse is admitted to an acute care facility for elective surgery. The nurse obtains a complete history and performs a thorough physical examination, paying special attention to the cardiovascular and respiratory systems. When percussing the client's chest wall, the nurse expects to elicit:
- A. Resonant sounds.
- B. Hyperresonant sounds.
- C. Dull sounds.
- D. Flat sounds.
Correct Answer: A
Rationale: The correct answer is A: Resonant sounds. Percussing the chest of a healthy individual typically elicits resonant sounds due to the presence of air-filled lung tissue. In this case, the client has a history of asthma, which indicates airway inflammation and possible mucus accumulation, making resonant sounds more likely. Hyperresonant sounds (B) are typically heard in conditions like emphysema with increased lung volume. Dull sounds (C) are indicative of fluid or solid tissue present in the lungs, which is not expected in this client. Flat sounds (D) are heard over areas of solid tissue or muscle, not in the chest of a client with respiratory conditions.
All of the following are unpaired cartilage of larynx except
- A. epiglottis
- B. cricoid
- C. Thyroid
- D. cuneiform
Correct Answer: D
Rationale: The correct answer is D: cuneiform. The cuneiform cartilages are paired cartilages, not unpaired. The epiglottis, cricoid, and thyroid cartilages are unpaired cartilages of the larynx. The epiglottis functions in covering the larynx during swallowing, the cricoid provides support for the larynx, and the thyroid cartilage forms the "Adam's apple." The cuneiform cartilages, on the other hand, are small paired cartilages located within the aryepiglottic folds. They help maintain the shape and stiffness of these folds, assisting in vocal cord function.
Carbon dioxide and water combine to form
- A. hydrochloric acid
- B. oxygen
- C. carbonic acid
- D. carbaminohemoglobin
Correct Answer: C
Rationale: The correct answer is C: carbonic acid. When carbon dioxide and water combine, they form carbonic acid through a chemical reaction known as hydration. This process is essential for the transportation of carbon dioxide in the blood and plays a crucial role in maintaining the body's pH balance. Hydrochloric acid (A) is formed by the reaction of hydrogen chloride gas with water. Oxygen (B) is not a product of the reaction between carbon dioxide and water. Carbaminohemoglobin (D) is a compound formed by the binding of carbon dioxide to hemoglobin in red blood cells, not a direct product of the reaction between carbon dioxide and water.