What is the difference between physiological dead space and anatomical dead space quizlet?
How does anatomical dead space differ from physiological dead space? Anatomical dead space refers to the volume of the lung not involved in gas exchange, while physiological dead space includes anatomical dead space as well as alveolar dead space.
What is physiological dead space in the respiratory system?
Dead space is the volume of air that is inhaled that does not take part in the gas exchange, because it either remains in the conducting airways or reaches alveoli that are not perfused or poorly perfused.
What is the anatomical dead space and what is its physiological importance?
Anatomic dead space is the total volume of the conducting airways from the nose or mouth down to the level of the terminal bronchioles, and is about 150 ml on the average in humans. The anatomic dead space fills with inspired air at the end of each inspiration, but this air is exhaled unchanged.
What is the anatomical dead space?
Anatomic dead space specifically refers to the volume of air located in the respiratory tract segments that are responsible for conducting air to the alveoli and respiratory bronchioles but do not take part in the process of gas exchange itself.
Why is anatomical and physiological dead space important?
Estimating the dead space can be of significant value in clinical situations for diagnostic, prognostic, and therapeutic value. Dead space is an integral part of volume capnography, which measures expired CO2 and dead space (VDphys/VT) on a breath-by-breath basis for efficient monitoring of patient ventilation.
What is an anatomical dead space?
What is the difference between dead space and shunt?
The main difference between the shunt and dead space is that shunt is the pathological condition in which the alveoli are perfused but not ventilated, whereas dead space is the physiological condition in which the alveoli are ventilated but not perfused.
Why is it called anatomical dead space?
‘Anatomic’ means that this dead space is inbuilt within the anatomy of the respiratory system and doesn’t really change; no matter what we do, we cannot ever use this air for gas exchange.
Why is it called the anatomical dead space?
The volume of air contained in this conducting zone is known as anatomic dead space. ‘Dead’ sounds kind of ominous but it basically reflects the fact that this air is as good as dead to the body, because you can’t extract oxygen from it.
What is the difference between shunt and dead space?
What are the different types of dead space?
Dead space represents the volume of ventilated air that does not participate in gas exchange. The two types of dead space are anatomical dead space and physiologic dead space.