Understanding Patho: Pulmonary - Quiz 5:
Exam 3 Questions With Verified Answers
Two types of airways in the pulmonary system: - answer1. conducting airways.
2. gas exchange.
The conducting airways are involved in: - answerventilation; mechanical movement of air
in/out of the lungs. Involves mu...
EXAM STUDY MATERIALS July 30, 2024 11:26 AM Understanding Patho: Pulmonary - Quiz 5: Exam 3 Questions With Verified Answers Two types of airways in the pulmonary system: - answer✔✔1. conducting airways. 2. gas exchange. The conducting airways are involved in: - answer✔✔ventilation; mechanical movement of air in/out of the lungs. Involves much of the initia l airways. The gas exchange airways involves what function? - answer✔✔respiration and exchange of gas across membranes resulting in O2/CO2 gas exchange. 3 major airways of the conducting airway: - answer✔✔1. upper airways. 2. larynx (laryngopharynx). 3. lower airways. Two components of the upper airways: - answer✔✔1. nasopharynx. 2. oropharynx. What is the purpose if the larynx? - answer✔✔connects the upper and lower airways. Has a switching mechanism that only allows airway to be available in the breathing portion. Also functions for voice production. 3 components of the lower airways in the conducting airways: - answer✔✔1. trachea. 2. bronchi. 3. terminal bronchioles. The tra chea deviates into: - answer✔✔the right and left main stem bronchus. The split between the main bronchi is called: - answer✔✔carina. Terminal bronchioles have small amounts of: - answer✔✔cartilage. Most of the bronchioles are involved in: - answer✔✔the res piration/gas exchange airway rather than the conducting airways. EXAM STUDY MATERIALS July 30, 2024 11:26 AM 3 major components of the gas -exchange airways: - answer✔✔1. respiratory bronchioles. 2. alveolar ducts. 3. alveoli. Describe alveoli: - answer✔✔small balloon like structures where the air en ds; the smallest unit of respirations. What cells make up alveoli walls? - answer✔✔epithelial cells. Types of epithelial cells: - answer✔✔1. Type 1 alveolar cells. 2. Type 2 alveolar cells. Difference between type 1 and type 2 alveolar cells: - answer✔✔Type 1 - alveolar structure components like endothelial cells in capillaries that allows for exchange across capillaries (part of the alveoli capillary membranes). Type 2 - produces surfactant. Why is surfactant important? - answer✔✔Surfactant is a protein t hat helps to reduce surface tension. surface tension in the lungs is a result of: - answer✔✔result of H+ binding to water or other substances, like binding of lots of magnetic forces to pull everything tighter and closer together. Surfactant acts like a : - answer✔✔detergent as it interferes with H+ bonds, loosens everything and allows for easier inflation of alveoli. What occurs if a baby is born before surfactant is produced? - answer✔✔The baby will have difficulty inflating its alveoli. Tx for baby born before surfactant production: - answer✔✔Give mother steroids to enhance maturation process of these cells if known baby coming early. The alveoli also contain these cells: - answer✔✔alveolar macrophages that engulf pathogens, particles and debris causing a n immune reaction. The combination of the respiratory bronchioles, alveolar ducts, and alveoli is called: - answer✔✔acinus. Function of the pharynx: - answer✔✔combined eating, drinking and respiratory section. Esophagus fxn: - answer✔✔eating and drinking o nly.
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