Serves as a passageway for air to pass to and from the lungs. It filters impurities and humidifies and warms the air inhaled
Nose
Lungs
Mouth
is a tube-like structure that connects the nasal and oral cavity to the larynx
Pharynx
naval cavity
these structures are important links in the chain of lymph nodes guarding the body from invasion by organisms entering the nose and throat
tonsils and adenoids
thyroid gland
the tongue
Is a cartilaginous epithelium lined organ that connects the pharynx and the trachea and consists of the epiglottis, glottis, thyroid cartilage cricoid cartilage, aryteroid carilages and the vocal cords
Larynx
Epiglottis
this serves as the passage between the larynx and right and left main stem bronchi
trachea
sinus cavity
the lungs and walls of the thoracic cavity are lined with a serous membrane called
pleura
epithelial cells
fat
this pleura covers the lungs
visceral
parietal
this pleura lines the thoracic cavity
this helps alveoli stay open and reduces surface tension
surfactant
mucosa
serous fluid
lungs expand from what to what
above clavicle to diaphragm
breast to tailbone
arm to toe
pulmonary circulation is considered what kind of pressure
low pressure
high pressure
is the process by which oxygen and carbon dioxide are exchanged from areas of high concentration to areas of low concentration at the air blood interface
pulmonary diffusion
pulmonary perfusion
this process is when actual blood flow through the pulmonary vasculature the blood is pumped into the lungs by the right ventricle through the pulmonary artery
perfusion is influenced by pulmonary artery pressure, gravity and
alveolar pressure
shortness of breath
blood pressure
is the elasticity and expandability of the lungs and thoracic structures
compliance
exhaling
contraction
can cause increased airway resistance
contraction of bronchial smooth muscle such as asthma
thickening of bronchial mucosa such as in chronic bronchitis
obstruction of the airway by mucus tumor or foreign body
loss of lung elasticity such as emphysema
all of the above
gas exchange between that atmospheric air and the blood in between the blood and the cells of the body is called
respiration
ventilation
this requires movement of the walls of the thoracic cage and diaphragm during inspiration and expiration
gas exchange with oxygen is by
diffusion
breathing
not breathing
this type of ventilation and perfusion imbalance happens when ventilation exceeds perfusion such as a pulmonary embolism causing inadequate perfusion
dead space
shunt perfusion
silent unit
this type of imbalance happens with an inadequate ventilation and not enough oxygen is coming in such as a lung collapse
this in balance is when inadequate ventilation and inadequate perfusion is involved such as a pneumothorax or ARDS
the amount of blood passing by the alveoli is equal to the amount of gas with a normal ratio of 1 to 1 is called
V/Q ratio
R/O ratio
R/v ratio
these two structures control respiratory and are located in the brain stem
medulla oblongata and pons
cerebrum and cerebellum
pineal gland and foramen ovale
this is the amount of oxygen dissolved in arterial blood with a normal range of 80-100mmhg
PaO2
Sa02
hemoglobin is able to carry how many oxygen molecules and considered full or saturated
4
8
2
the amount of oxygen bound to hemoglobin and measured as a percentage is
So2
Pa02
Spo2
Sao2 is the oxygen saturation read from
an arterial blood sample
pulse oximeter
Sp02 is oxygen saturation read from
a finger probe
arterial blood gas
normal pH range for blood is
7.25-7.34
7.35-7.45
7.45-7.55
this indicates adequacy of alveolar ventilation. normal range is 35 to 45
Co2
Pao2
normal range of bicarbonate is
22-26mEq
27-31mEq
35-45 mEq
these are considered respiratory defense mechanisms
filtration
Mucous and cilia
cough reflex
bronchoconstriction and alveolar macrophages
Early CNS symptoms of inadequate oxygenation include
restlessness
irritability
apprehension
Late CNS signs and symptoms of inadequate oxygenation include
confusion
combativeness
coma
all the above
Early respiratory signs and symptoms of inadequate oxygenation include. Select all the apply
Tachypnea
Dyspnea on exertion
Use of accessory muscles
Late respiratory signs and symptoms of inadequate oxygenation include. Select all that apply
Dyspnea at rest
Pause between words
Sleeping comfortably
early cardiovascular signs and symptoms of inadequate oxygenation include.select all that apply
tachycardia
increase blood pressure
arrhythmias
cyanosis
late cardiovascular signs and symptoms of inadequate oxygenation include. Select all that apply
hypotension
cool and clammy skin
febrile
normal oxygen saturation should be 95% to 100%
substance that gives up an hydrogen ion in the body
acid
Base
A substance that can accept a hydrogen ion in the body
base
Chemical buffers maintain what ratio of the base hco3 to the acid H2co3 to help keep pH in normal range
20:1
20:2
25:1
this is caused by hypoventilation for respiratory or for metabolically: diarrhea ,pancreatic fluid loss ,renal failure, DKA, starvation, aspirin overdose, dehydration
acidosis
alkalosis
caused by hyperventilation by respiratory or by metabolic too many tums loss of chloride, or hydrogen chloride, gastric suction, vomiting ,or diuretic therapy
if the pH and pco2 are changed in the opposite direction there is a what kind of problem
respiratory
metabolic
if the pH and the bicarbonate are changed in the same direction there is a ___________problem
Respiratory
this system compensates for metabolic and balance by elimination of co2
this system compensates for and balances and co2 alternating hydrogen ions and bicarbonate elimination and can take a few days
kidneys
if the pH and pco2 are changed in the same direction the body is compensating for an abnormal
Ph