0
What effect does increased airway resistance have on intra-pleural pressure?
Wiki User
∙ 14y agoWant this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
What is in the upper airway?
The nose, pharynx, and trachea are the parts of the upper airway. The tubes of the lungs comprise the lower airway.
Why are the walls of the windpipe made of stiff material?
So it doesn't collapse when you breathe. =]
Which organ is an airway?
The lungs
What are the names of the two reflexes which protect the airway of a conscious person?
What are the names of the two reflexes which protect the airway of a conscious person
What is the main airway in the human body?
The airway in the human body is the passage through which inhale and exhale air.
What is the concept of equal pressure point?
Equal pressure point (EPP) is the point where Intrapleural pressure and Alveolar pressure are equal. This is similar to the Starling resistor concept in the lung. Instead of flow being determined by the difference between alveolar and mouth pressure- flow is determined by the difference between alveolar and Intrapleural pressure difference. In forced expiration, both intrapleural pressure and alveolar pressure will increase. However alveolar pressure will decrease along the length of the airway until a pressure of zero at the mouth, whereas intrapleural pressure will remain the same. Therefore there will be a point where intrapleural pressure will be equal and subsequently greater than alveolar pressure. If the EPP occurs in the larger cartilaginous airways, the airway remains open. However, if the EPP is in the smaller airways, it will collapse. Increasing the force of expiration does not overcome EPP since it will increase both alveolar and intrapleural pressure. Another interesting concept is that EPP moves distally as expiration progresses because as air leaves the alveolar unit, the pressure in the alveolar decreases hence the pressure in the airway decreases as well. EPP is the cause of dynamic airway compression.
What does acetylcholine do to bronchioles?
Constricts bronchioles leading to increased airway resistance and decreased air flow
Airway resistance is affected primarily by the?
airway length - a large surface area means more friction airway radius - halving the radius increases resistance 16-fold flow rate
Emphysema is characterized by an increase in?
Increased airway resistance and reduced elastic recoil. Causes severe early dyspnea, scanty sputum, and hyperinflation.
Asthmatics tend to have their smaller sirways narrowed by smooth muscle constrrictionthickening of the walls and mucous secretion How would this affect vital capacity FEV1 and MVV?
Vital capacity may not be reduced in asthmatics although it will take a substantial amount of effort (work) for the same volumes of vital capacity because of the increased airway resistance. FEV1 and MVV will generally be lowered because of the increased airway resistance necessitating extra muscular effort.
What is positive airway pressure?
Continuous positive airway pressure (CPAP)-- A ventilation device that blows a gentle stream of air into the nose during sleep to keep the airway open.
What is continuous positive airway pressure?
Continuous positive airway pressure (CPAP)-- A ventilation device that blows a gentle stream of air into the nose during sleep to keep the airway open.
What is difference between cpac and sipap?
CPAP-Continuous Positive Airway Pressure, SiPAP-Synchronized inspiratory Positive Airway Pressure
What are continuous kpositive airway pressure devices?
CPAP devices are masks that fit over the nose during sleep and deliver air into the airway under enough pressure to keep the airway open.
What are continuous positive airway pressure devices?
CPAP devices are masks that fit over the nose during sleep and deliver air into the airway under enough pressure to keep the airway open.
What does Paw stand for in respiratory?
Airway pressure
Would decreased airway resistance make it difficult for a person to exhale?
Yes
