Lung notes Flashcards
In the lung we have trachea, windpipes, we have upper respiratory system and lower respiratory system where we have smaller branches of the bronchi getting into the respiratory bronchioles…one of the more important spaces we find is the alveoli which is place the gas exchange occurs
Respiratory system consists of the air passages and the lungs which is divided into our conducting airways which is how the air moves to get into the lungs and then the actual respiratory issues of the lungs where this gas exchange takes places….we need to be able to get air to the proper parts of the lungs for exchanges to take place and then we need the proper structures in order for that exchange to take place once its there and we will see that we have disorders of both types sometimes its difficulty getting there sometimes its not being able to exchange once it is there
_____________is the movement of gases into and out of the lungs…its function is it moves air out of the lungs and into the lungs but it doesn’t participate in gas exchange
Ventilation
Ventilation is not gas exchange
The process of gas exchange involves ventilation,perfusion, and diffusion
So perfusion is the flow of blood
What is ventilation? The flow of _____ into the lungs
air
The amount of oxygen in the blood…in the arteries in the blood is usually above _________
80mm Hg
Large majority of our oxygen is going to be bound to hemoglobin traveling through the blood
Carbon dioxide is around half of what we see oxygen primarily
About 10% of this can be dissolved and we will see this in our gas exchange and our buffer exchange things…talking about diffusing carbon dioxide this is one of those things that helps our pH balance…it also can be attached hemoglobin
About 30% in the bicarbonate again
Bicarbonate…carbon dioxide will exchange back and forth but this is going to influence how much of bicarbonate is in the blood
___________ is the most common upper respiratory tract infection
Common cold
Major transmission of common cold is through ________…touching…these are things we get on our hands that why its important to wash hands
fingers
Common cold is NOT an airborne illness
Common cold
Major points of entry:picking nose or rubbing your eyes
Frontal sinuses are above our eyes
Maxillary sinuses are on the side of your nose
Ethmoid sinuses which are between your eyes
Most sinus infections last 5 to 7 days or even less
What is halitosis? __________
Bad breath
The most common port of entry for cold viruses? _________
Fingers
Is fingers transmission less contagious or more contagious than something that is in the air? fingers transmission is less contagious…in the air is going to spread easily