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What is the major role of the respiratory system?
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Four processes-pulmonary ventilation, external ventilation, cellular respiration and internal respiration-must occur in order for the respiratory system to function fully
Four processes-pulmonary ventilation, external ventilation, cellular respiration and internal respiration-must occur in order for the respiratory system to function fully
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Respiratory Lab Quiz
| Question | Answer |
|---|---|
| What is the major role of the respiratory system? | Supply the body with oxygen and dispose of carbon dioxide |
| True or False Four processes-pulmonary ventilation, external ventilation, cellular respiration and internal respiration-must occur in order for the respiratory system to function fully | True |
| What is the largest and most prominent of the laryngeal cartilages? | Thyroid cartilage |
| True or False The epiglottis forms a lid over the larynx when we swallow food: it closes off the respiratory passageway to incoming food or drink | True |
| Air flows from the larynx to the trachea and then enters what? | right and left main bronchi |
| What is the lining of the trachea called that propels dust particles, bacteria and other debris away from the lungs? | columnar epithelium. THE CILIA ARE WHAT PROPELS - ON THE PSEUDOSTRATIFIED COLUMNAR EPITHELIUM. |
| _____________, tiny balloon like structures, are composed of a single thin layer of squamous epithelium. They are the main structural and functional units of the lung and actual sites of gas exchange. | Alveoli |
| Why is it important that the human trachea is reinforced with cartilaginous rings | To maintain its open passageway regardless of the pressure changes that occur during breathing. |
| Why is it important that the rings are incomplete posteriorly? | Allows the esophagus to expand outward when a large bolus is swallowed |
| Name 3 functions of nasal conchae? | warms, filters and moisturizes air |
| Trace a molecule of oxygen from the nostrils to the pulmonary capillaries of the lungs | nostrils > nasal cavity > pharynx > larynx > trachea > NAME THEM: MAIN BRONCHUS, LOBAR BRONCHUS, SEGMENTAL BRONCHUS THEN TO BRONCHIOLE.....bronchus > bronchi > bronchiole > alveolar duct > alveolar sac > alveolar capillary wall > blood |
| What muscle controls breathing in the resting state | diaphragm |
| What nerve activates the diaphragm during inspiration? | phrenic nerve |
| What is the name of the pleural layer lining the wall of the thorax? | Parietal pleura |
| The common passageway for both air and food | pharynx |
| food passage way posterior to trachea | esophagus |
| What portions of the respiratory system are referred to as anatomical dead space? | all but the respiratory zone structures. SPECIFICALLY - TRACHEA, AND ALL BRONCHI AND ALL BRONCHIOLES UNTIL YOU GET TO RESPIRATORY BRONCHIOLES. |
| What additional dead space occurs in emphysema | it destroys alveolar tissue and increases dead space volume BECAUSE THE CENTER OF THE ENLARGED ALVEOLI NO LONGER IN CONTACT WITH CAPILLARIES. |
| How many lobes does the right lung have? | 3 |
| How many lobes does the left lung have? | 2 |
Created by:
Bachnerjenn