SUBSCRIBE
BIOS 135 Final Exam
- At what point does the trachea branch into two mainstem
bronchi?:
Answer Carina
2. What maintains the negativity of interpleural pressure?:
Answer Lymphatic drainageand Action of the diaphram
- Which of the following is the is the right sequence of events that
generatea cough?:
Answer The diaphragm contracts for inspriation, inspiratory pause, the larynx closes the glottis, the abdominal expiratory muscles contract forcefully, and the glottis opens as gas releases.
4. What is the name of the most superior part of the sternum?:
Answer Sternal notch
5. L/S ratio and PG levels lung maturity in neonates?:
Answer True
6. Which of the following structures is responsible for phonation?:
Answer True vocalcords
7. The gas exchange zone consist of what?:
Answer Aveoli, acini, and respriatory bron-choli
- Which of the following are explanation for the left
hemidiaphragmatic sur-face to be slightly lower than the right?:
Answer The heart rest on the left half and the liver is below the right half
9. Upper airways resist is less than lower airways resistance?:
Answer False
- Stimulation of the irritant receptors in the lung can result in
which defensemechanism?: 1 / 2
SUBSCRIBE
Answer Bronchoconstriction, Reflex closure of glottis, and bradycardia
11. Pharyngeal tonsils are called:
Answer Adenoids
- Which of the following of the nose is lost if a plastic
endotracheal tube isinsterted through the nose or mouth and into
the trachea?:
Answer Air conditioning
13. Which of the following occurs during inspiration?:
Answer Diaphragm contracts andflattens
- Of the following, the structures essential in generating high
pressureduring a cough is the:
Answer Vocal cords
15. Which of the following is a function of the surfactant?:
Answer Lowers surfacetension
- True vocal cords folds a triangular opening leading into the
trachea?:
Answer True
17. What is the normal composition of the surfactant?:
Answer 90% phospholipids and10% protein
- Because of the dichotomous branching bronchial tubes become
narrower,this means the airflow has to squeeze through a smaller
diameter and there- fore speeds up as it approaches the aveoli?:
Answer False
- Which of the following pathologic processes is defined as
- / 2
perfusion inexcess of ventilation, ie atelectasis?: