Lab Exercise 5 Word Scramble
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Question | Answer |
Type 1 Pneumocyte | main cell of lung |
Type 2 Pneumocyte | differentiate into Type 1, make surfactant, which adds phospholipids and lipoproteins for surface tension |
What is the main function of the respiratory system? | oxygenation of blood and elimination of O2 |
What are the two serious membranes surrounding each lung? | visceral pleura and parietal pleura |
What is inside the pleural cavity? | pleural fluid |
What is the function of pleural fluid? | lubrication for lung movement |
What makes up the bronchial tree? | main branch, lobar branch, segmental branch, bronchioles, terminal bronchioles |
How are bronchioles different from the other structures of the bronchial tree? | More smooth muscle, less cartilage, smaller lumen |
What makes up the conduction zone? | Bronchial tree |
What makes up the respiratory zone? | Alveoli |
What forms the respiratory membrane in the lung? | simple squamous epithelium, basement membrane, interstitial fluid |
Pulmonary ventillation | breathing |
Boyle's Law | pressure and volume are inversely related |
What muscles contract during quiet inspiration? | diaphragm and external intercostal muscles |
What muscles contract during deep inspiration? | sternocleidomastoid and scalenes |
What muscles contract during deep expiration? | internal intercostals, internal and external obliques, transverse abdominus, rectus abdominus |
Intrapulmonary/Intra-alveolar pressure | pressure in alveoli; 0 relative to outside |
Intrapleural pressure | pressure in cavity |
Intrapleural Pressure during inspiration | decrease |
Intrapleural pressure during expiration | increase |
What happens when the thoracic wall is punctured at least to the level of the pleural cavity? | pneumothorax |
Transpulmonary pressure | difference between lung pressure and outside pressure |
What happens to airway resistance when bronchioles constrict? | increases |
Mathematical relationship between air flow and resistance | inverse |
Effects of parasympathetic stimulation (Ach) | bronchiole constriction |
Effects of histamine application | bronchiole constriction |
Effects of sympathetic stimulation (Epi) | bronchiole dilation |
Lung Compliance | ease of lung expansion |
2 Factors on Lung Compliance | stretchability of elastic fibers and surface tension |
Respiratory Distress Syndrome | infant doesn't have enough surfactant and alveoli and lungs collapse |
Bronchial Sounds | produced by air rushing through the apparatus |
Vesicular breathing sounds | sounds from air filling the alveolar sacs and sounds like rustling or a muffled breeze |
Which sounds are heard in inhalation and exhalation? | bronchial sounds |
Which sounds are heard only in inhalation? | Vesicular sounds |
Created by:
connorquinby
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