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20 Cards in this Set

  • Front
  • Back
Describe Pump Handle motion

Describe bucket handle motion
~Occurs in the upper ribs and increases the AP diameter
~Occurs in the Lower ribs and increased the Transverse diameter with an outward and upward motion
Primary Muscles of respiration

Accessory Muscles of respiration
Diaphragm, intercostals

SCM, scalenes, SA, Pec. Major and minor, Trap and erector spinae
The diaphragm accounts for_____ of the tidal volume while in standing and sitting. And _____ in supine. AND ____ of the vital capacity in all positions.
The diaphragm is bilaterally innervated by what nerve?

What do the intercostal muscles do?
Phrenic Nerve

prevent the intercostal spaces from being drawn in or bulged out during respiration.
What muscles are responsible for forced expiration?

The right and left lungs have how many lobes?
Abdominals and internal intercostals

R-3 L-2
Each lobe of the lung is supplied by its own__________.

The apex of the lung is the top or bottom of the lungs?
Bronchial segment.

Up until the 16th division of the bronchial tree what is occuring?

at what division does gas exchange occur?
Conduction only

Why does more aspiration occur in the Right main bronchus rather than the Left?

What are the two kinds of cells and line the alvelous?
Bc the right is more vertical and it is wider and shorter than that Left

Squamous and Granular
What kind of cells secrete surfactant?

What does surfactant do?

Provide surface tension, keeps alveolar sacs from collapsing.
What are the pores of Kohn and Lamberts canals?

Channels that interconnect aveoli and allow collateral ventilation.

Scar tissue between capillary and alveoli
Pulmonary edema/pneumonia

Gas exchange only occurs w/i alveoli that are...
fluid filled alveoli

ventilated and perfused

air provided at the level of exchange

blood the supplied at the level of exchange
Dead space

Anatomic dead space

Physiologic/alveolar dead space
area that is ventilated and not perfused
~Natural conducting airways
~Areas of the lung that arent perfused
total dead space

1/3 of the ____is normally dead space
alveolar + anatomic dead space

Tidal Volume

Normally caused by...
Portion of the lung perfused but not ventilated.
~obstruction that is preventing ventilation
The V/Q ratio in the lungs:
Zone 1

Zone 2

Zone 3


pure shunt

Pure dead space

Total lung capacity(TLC)


Max amount of air that is in the lungs after max inhalation. VC + RV= 6L
Tidal Volume (TV)

Inspiratory reserve volume (IRV)
the amount of air breathed in and out during normal quiet breathing 500-600mL
~ after a normal inspiration a forced deep breath in 3L.
Expiratory reserve volume (ERV)

Residual volume (RV)
After a normal exhalation a forced exhalation 1.1-1.2L.

The amount left in the lefts after forced exhalation
Functional residual capacity (FRC)

Inspiratory capacity (IC)

Vital Capacity (VC)

TV+IRV=total amount breathed in during 1 deep breath after normal exhalation.

Total amount during a deep breath in then a forced breath out 4.8L