BIO 669 QUESTIONS AND ANSWERS LATEST UPDATE
(GRADED A+)
What are the conducting airways for?
ventilation and respiration
What are the upper airways?
nasopharynx and oropharynx
What does the larynx do?
connects upper and lower airways
What are the lower airways?
trachea, bronchi, terminal bronchioles
Gas exchange airways are?
respiratory bronchioles, alveoli ducts, alveoli
type I alveolar cells
used for gas exchange across membranes with capillaries
type II alveolar cells
secrete surfactant; interfere with H ion bonds and helps with lung inflation
macrophage
used for immune protection; engulfs foriegn pathogens and debris
The larynx plays a part in?
voice production
Pores of Kohn
Small opening between alveoli that allow for the movement of gas and macrophages.
pulmonary circulation has __________ pressure than systemic circulation?
lower
How much of the the pulmonary vessels are filled with blood?
1/3
The pulmonary artery divides and enters the lungs at the _________
hilus
alveolocapillary membrane
, a shared wall between the alveolar and capillary walls that allows for gas exchange across the
membrane
increased edema can affect the diffusion of gasses
The ___________ of the pulmonary artery lumina decreases as smooth muscle in arterial walls
contacts
caliber
Caliber is?
the size of the opening of the pulmonary artery
Acidemia can cause
vasoconstriction of the pulmonary artery
The most important cause of vasoconstriction in the pulmonary artery is?
low alveolar Po2
The chest wall is considered?
skin, ribs, intercostal muscles, and thoracic cavity
What does the pleura do?
connects the lungs to the chest wall
What are the parts of the pleura?
serous membrane, parietal and visceral layers, pleural space, and pleural fluid
The parietal layer is connected to the
chest
the visceral layer is connected to the
lungs
What are the functions of the pulmonary system
- ventilate the alveoli
- diffuse gases into and out of the blood
- perfuse the lungs so the body receives oxygen
vital capacity
amount of air you can max inspire the expire
tidal volume
amount of air you move in and out during quiet breathing over 1 minute
(GRADED A+)
What are the conducting airways for?
ventilation and respiration
What are the upper airways?
nasopharynx and oropharynx
What does the larynx do?
connects upper and lower airways
What are the lower airways?
trachea, bronchi, terminal bronchioles
Gas exchange airways are?
respiratory bronchioles, alveoli ducts, alveoli
type I alveolar cells
used for gas exchange across membranes with capillaries
type II alveolar cells
secrete surfactant; interfere with H ion bonds and helps with lung inflation
macrophage
used for immune protection; engulfs foriegn pathogens and debris
The larynx plays a part in?
voice production
Pores of Kohn
Small opening between alveoli that allow for the movement of gas and macrophages.
pulmonary circulation has __________ pressure than systemic circulation?
lower
How much of the the pulmonary vessels are filled with blood?
1/3
The pulmonary artery divides and enters the lungs at the _________
hilus
alveolocapillary membrane
, a shared wall between the alveolar and capillary walls that allows for gas exchange across the
membrane
increased edema can affect the diffusion of gasses
The ___________ of the pulmonary artery lumina decreases as smooth muscle in arterial walls
contacts
caliber
Caliber is?
the size of the opening of the pulmonary artery
Acidemia can cause
vasoconstriction of the pulmonary artery
The most important cause of vasoconstriction in the pulmonary artery is?
low alveolar Po2
The chest wall is considered?
skin, ribs, intercostal muscles, and thoracic cavity
What does the pleura do?
connects the lungs to the chest wall
What are the parts of the pleura?
serous membrane, parietal and visceral layers, pleural space, and pleural fluid
The parietal layer is connected to the
chest
the visceral layer is connected to the
lungs
What are the functions of the pulmonary system
- ventilate the alveoli
- diffuse gases into and out of the blood
- perfuse the lungs so the body receives oxygen
vital capacity
amount of air you can max inspire the expire
tidal volume
amount of air you move in and out during quiet breathing over 1 minute
