Respiratory System Flashcards
What is tidal volume?
the amount of air which moves in and out of the lungs in each respiratory cycle during quiet breathing
Which muscles are used during forced inhalation
Diaphragm
external intercostals
Which muscles are used during forced exhalation
internal intercostals
obliques
rectus abdominus
True or False. Is inhalation passive
False, it is an active process
what is alveoli
tiny air sacs composed of single squamous epithelium
which structures are in the conducting zone (passageway for air)
nasal cavity, pharynx, trachea, bronchi and most bronchioles.
what structures are involved in the respiratory zone
respiratory bronchioles , alveolar ducts and alveoli
which muscles are involved in quiet inspiration and exhalation.
external intercostal muscles
diaphragm
where does external respiration occur
between environment and lungs
where does internal respiration occur
between the blood and cells
what is cardiac output?
the amount of blood pumped by each ventricle. C for complete
what is stroke volume?
the volume of blood pumped in one single heartbeat. S for single
