and answers 2025
Spans from Z0 to Z16. Volume of air held is _____ mls. No gas
exchange takes place. - 🔰CORRECT ANSWERS ✔✔150
During normal breathing, there is about ____ to ____ mls of air in
the alveolar airways. - 🔰CORRECT ANSWERS ✔✔2500‐3000
_____‐ No cartilage and significantly less smooth muscle.
Remember, no gas exchange here. - 🔰CORRECT ANSWERS
✔✔Terminal Bronchioles (Z16)
The path of oxygen diffusion‐ - 🔰CORRECT ANSWERS ✔✔1.
Alveolar fluid 2. Alveolar epithelium 3. Epithelial basement
membrane 4. Interstitial space 5 Capillary basement membrane 6.
Capillary endothelial cell membrane 7. Blood 8. Red cell membrane
What are the muscles involved with inspiration? - 🔰CORRECT
ANSWERS ✔✔Main muscle of inspiration is the diaphragm.
1 \\\\\\/ \\\\\\
32
,Secondary inspiratory muscles are the external intercostals and
sternocleidomastoids. We use these during exercise.
Sternocleidomastoid elevates sternum.
Scalenus elevates and fix upper ribs.
Parasternal intercartilaginous muscles elevates ribs.
External intercostals elevates ribs.
Diaphragm: domes descend, increasing longitudinal dimension of
chest and elevating lower ribs.
What are the muscles involved with expiration? - 🔰CORRECT
ANSWERS ✔✔TIDAL VOLUME expiration is passive (ie, we use
the recoil of the lung to push air out).
Secondary expiratory muscles include the internal intercostals and
the abdominal muscle. When they contract, they work with the
recoil to forcefully push air out of the lungs.
Internal intercostals except parasternal intercartilaginous muscles
(depresses ribs).
Abdominal muscles depresses lower ribs, compresses abdominal
contents.
2 \\\\\\/ \\\\\\
32
,Rectus abdominis.
External oblique..
Internal oblique.
Transversus abdominis.
When the diaphragm contracts during inspiration, it moves
____.When it relaxes during expiration, it moves____. - 🔰
CORRECT ANSWERS ✔✔Down
Up
____ is the amount of air inhaled/exhaled with a normal breath
from the resting level (~____ L) - 🔰CORRECT ANSWERS
✔✔Volume (VT)
0.5
_____ is the amount of air that remains after maximal expiration
(~____ L). - 🔰CORRECT ANSWERS ✔✔Residual volume (RV)
1.2
____ is the volume of air that can be expelled after normal tidal
volume expiration (~____ L). - 🔰CORRECT ANSWERS
3 \\\\\\/ \\\\\\
32
, ✔✔Expiratory Reserve Volume (ERV)
2
_____ is the amount of air which can be forcibly exhaled from the
lungs after taking the deepest breath possible (~____ L) - 🔰
CORRECT ANSWERS ✔✔Forced Vital Capacity (FVC)
5
______ is the volume of air that is exhaled after maximal
inspiration (~___ L).Therefore, it's ___ + ___ + ___ - 🔰CORRECT
ANSWERS ✔✔Vital Capacity (VC)
5
ERV+ VT + IRV
____ is the maximum volume to which the lungs can be
expanded(~___ L). Therefore, it's __ + ___ - 🔰CORRECT
ANSWERS ✔✔Total lung capacity (TLC)
6
RV + VC
____ is the amount of air left in the lungs are a tidal volume breath
4 \\\\\\/ \\\\\\
32