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[h] Cardiovascular System Flashcards

[i] Master this session in just 5 minutes.

[q] Name the following labels:

1. ………………

2. ……………..

3. ……………..

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[f]

[Qq]

 In obstructive disease, the flow-volume loop begins and ends at abnormally high lung volumes, and the expiratory flow is lower than normal. In addition, the downslope of expiration “scallops” or “bows” inward. This scalloping indicates that at any given lung volume, flow is less. Thus, airway resistance is elevated (obstructive).

 In restrictive disease, the flow-volume loop begins and ends at unusually low lung volumes. Peak flow is less, because overall volume is less. However, when expiratory flow is compared at specific lung volumes, the flow in restrictive disease is somewhat greater than normal.

[q] Although resistance within the trachea and mainstem bronchi is relatively high, it reaches the maximum in ………… because of highly turbulent airflow.

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[f]IHRoZSBtZWRpdW0tc2l6ZWQgYnJvbmNoaS4=

[q] ……… is the volume of air moved in or out of the respiratory system per minute, usually measured as the volume expired per minute.

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[f]IFRvdGFsIHZlbnRpbGF0aW9uIChtaW51dGUgdmVudGlsYXRpb24pLg==

QWx2ZW9sYXIgdmVudGlsYXRpb24gKEwvbWluKSA9ICh0aWRhbCB2b2x1bWUgJiM4MjExOyBkZWFkIHNwYWNlIHZvbHVtZSkgWCBicmVhdGhzL21pbg==[Qq]

[q] ……….. represents any air in the respiratory system that is not exchanging oxygen and carbon dioxide with the pulmonary capillary blood.

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[f]IERlYWQgc3BhY2Uu

[q] …………. is largest contributor of alveolar dead space (Volume of inspired air that does not take part in gas exchange).

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[q] ………… are favored in diseases that increase elastic resistance (pulmonary fibrosis, pulmonary edema, acute respiratory distress syndrome). In contrast, ………… are favored in diseases in diseases that cause high airflow resistance (asthma, COPD) in order to minimize the work of breathing.

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[f]IFJhcGlkIGFuZCBzaGFsbG93IGJyZWF0aHMsIHNsb3cgYW5kIGRlZXAgYnJlYXRocy4=

[q] ………. reduces the variation in distending pressure amongst alveoli of varying sizes, preventing the collapse of smaller alveoli and the unchecked expansion of larger ones.

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[f]IFN1cmZhY3RhbnQu

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