-
Gas exchange between blood and alveoli is called_____respiration.
External
-
Gas exchange between blood and tissue cells is called______respiration
internal
-
Passage leading to gas exchange sites is classified as
conducting zone
-
Resonating chamber of speech is
nose
-
Nose is bounded laterally by _____ bones______
Maxillary
-
Skin on dorsal and lateral side of nose is then and contains_____glands.
Sebaceous
-
Nasal cavity continues posteriorly with the nasal portion of pharynx through
internal nares or chonae
-
Nasal cavity is divided by a midline called
nasal septum
-
The nasal cavity portion superior to nostrils is called
nasal vestiuble
-
Name 3 functions of the sinuses
- lightens skull
- warms air
- traps debris
-
Inflammation of the nasal mucosa causes a disease called
rhinitis
-
Sinus headache is primarily caused due to
vacuum in sinus cavities
-
The common pathway for both food and air is
pharynx
-
The tubes draining the middle ear helping in pressure balancing are
Auitory tube or Eustachian
-
Name three functions of the larynx
- open air way
- switch for air and food
- voice
-
Larynx is arranged intricately by _____ cartilages
9
-
Expect for _____ all the laryngreal cartilages are hyaline cartilage
the epiglottis
-
The largest laryngeal cartilage is
thyroid cartilage
-
Ridge like structure or your Adam's apply is formed by
fusion of 2 thryoid cartilage
-
The signet ring shaped cartilage of the larynx is
Cricoid
-
Vocal cords are anchored to______cartilage
arytenoid cartilage
-
Medial opening through which air passes is
glottis
-
Intermittent release of expired air & opening of glottis results in
Speech
-
Length of the vocal cords and size of glottis is altered by______muscles
laryngeal
-
Tense vocal cords leads to faster vibration resulting in a ____ sound
high pitch
-
Deep tones means people have generally a wide
glottis
-
Inflammation of the vocal cords leads to
laryngitis
-
Wind pipe in the human body is
trachea
-
The last cartilage ring of the trachea is
carina
-
In human lungs there are ____ lobes on the right and _____lobes on the left
3 and 2
-
Actual exchange of gases in the lungs take place in
alvoeli
-
The walls of the alveoli are made up of ______ cells
squammous epithelium
-
Surfactant secreted by the Type II cells help in
reducing surface tension
-
Alveolar macrophages are also called as
dust cells
-
The lungs are housed in ______ alone with heart and esophagus
Mediastinum
-
Surface of the lung close to the ribs is
costal surface
-
Medial surface of each lung has a groove called
hilus
-
______ side of the lung is small than the _____ side
left, right
-
The two lobes of the left lung are divided by
oblique fissure
-
The 3 lobes of the right lung are divided by ______ and ______
oblique and horizontal fissure
-
The blood vessels which supply impure blood to lungs are
pulmonary artery
-
The thin double layered serosa enclosing the root of the lung is called
parietal pleura
-
Pleural fluid acts as a
lubricant
-
Inflammation of the pleura causes a disease called
pleurisy
-
Atmospheric pressure (atm) at sea level is _____mm of Hg (murcery)
760
-
The pressure within the alveoli of the lungs is
intrapulmonary pressure
-
Pressure within the pleural cavity is
interapleural pressure
-
Which of the above two pressures is lesser than other and by how much
Intrapleural is less and by 4mm
-
If the two pulmonary pressures become equal _____ results
lung collapse
-
The presnece of air in intrapleural space is called ________
prieumothorax
-
Relation ebtween pressure and volume at constant temperature is given by _____ law
Boyle's
-
As a rule gases always flow along their
gradients
-
The diameter of the thorax is expanded by contraction of _____muscles.
intercostals
-
A major nonelastic sourse of resistance to gas flow is called_____or_____
friction or drag
-
What is the formula to measure gas flow
pressure gradiant/resistace
-
Great resistance to gas flow is seen in_____
median sized tubes
-
Name any three factors which hinders the passage of air
ucus, infection, tumors
-
Ability of the lungs to expand is called
compliance
-
Lung expansion can be dimminished by_____ or______ or______
fibrosis, high surface tension, blockage
-
Permanent enlargement of alveoli or destruction of it's wall causes
epmhysema
-
Molecules of liquid produces a state of pressure at its surface called
Surface tension
-
Water has high polarity and hence its surface tenstion is
high
-
Type II cells produce____which interferes with cohesiveness of water
surfactant
-
IRDS is caused by
decreased surfactant
-
Normal volume of air expired and inspired is measured to
Tital Volume (TV)
-
Define inspiratory reserve volume
air inspired after TV
-
Define expiratory reserve volume
air that can be evacuated
-
Define inspiratory capacity
air inspired after tidal resipration
-
Define residual volume
air in lungs after
-
Define functional residual capacity
air in lungs after tidal respiration
-
Define vital capacity
total exchanged air
-
Air that is not invovled in gas exchange is referred to____ and amounts to _____ml
dead space, 150
-
Instrument which distinguishes between Obstructive and Restrictive disorders is
spirometer
-
Define Minute respiratory rewerve volume
air in and out in 1 minute
-
Define Forced vital capacity
air expelled with force
-
Low forced expiratory volume is and index of_____disease
obstructive pulmonary
-
Low forced vital capacity is an index of______disease
restrictive pulmonary
-
The formula for Alveolar ventilation rate is_____.
frequency times TV subtract dead space
-
Cough and sneeze relates to______ state of respiration
expiratory
-
Non respiratory events related to inspiration are _____, ______, and______.
cry, laugh, yawn, hiccups
-
Define Daltons law of partial pressures
Total pressure is equal to the sum of partial pressure of each gas
-
Define Henry's law
Gas is soluble according to partial pressure
-
Hyperbaric chambers provide clinical application of_____ law
Henry's
-
Define SCUBA
self contained underwater breathing applicatoin
-
Precise coupling of_____ and_____ should be present for efficient gas exchange.
ventilation and prefusion
-
When alveolar ventilation is low and PO2 is less blood vessel
constrict
-
Capillary gas exchange in tissues is called______
internal respiration
-
PO2 is ______ in cells and ____ in blood.
-
Oxygen is transported in blood by two ways, name them.
Bound to Hb and dissolve in plasma
-
Hemoglobin has______chains.
4 polypeptide
-
Each chain in hemoglobin is attrached to_____group.
iron containing heme
-
The oxygen binding sites of hemoglobin are_____
iron atoms
-
Hemoglobin and Oxygen combine to form
oxyhemoglobin
-
Binding of 2nd, 3rd, and 4th oxygen atoms to hemoglobin is faciliated by
binding of 1st atom
-
what is a fully saturated hemoglobin molecute
4 oxygen bound
-
substantial amounts of oxygen available in bloode is termed
venous reserve
-
If temp increases the affnity of oxygen to hemoglobin
decreases
-
When H+ ions increase affinity of oxygen to Hb_____. This is _____effect.
decreases, Bohr
-
In RBC metabolism of glucose is ___ and enhanced by____
anaerobic, DPG
-
Name any three hormones whioch promote diphosphoglycerate production
thyroxin, testosterone, GH
-
Poor oxygen delivery is caused by ____ and causes____hypoxia
Hb impairment and anemia
-
Stagnant hypoxia is a result of_______
blocked blood cirucation
-
Interference with gas exchanges in lungs leads to____hypoxia
hypoxemic
-
Carbon monoxide poisoning is an example of_____
hypoxemic hypoxia
-
Identify 3 routes fo Co2 transport in blood
gas in plasma, bind to Hb, and as HCO3
-
Most of CO2 is carried as____in blood.
HC03
-
CO2 binds to ______ portion of hemoglobin
globin
-
Oxygen binds to_____portion of hemoglobin
heme
-
Enzyme which catalyses the conversion of CO2 and water to H2CO3 is
carbonic anhydrase
-
Movement of ____ ions to counteract the movement of HCO3 ions is called____
CO, chloride shift
-
Define Haldane effect
low PCO2-more O2 carried
-
_____ and____ regions of brain has respiratory centers
pons, medulla
-
Normal respiratory rate is called
eupneah
-
Medullary respiratory centers contorl_____part of respiration.
inspiratory
-
Center which sends inhibitory signals to inspiratory center of medulla is_____
pheumotoxic center
-
Prolonged inspiration is due to the signal sent to medullary center by
apneustic center
-
Protective mechanism of terminating inspiration and promoting expiration is ___reflex.
Hering-Breur
-
Hyperventilation is a process involving____in CO2 and _____ in pH.
low, high
-
Breathing into a bag is an example when CO2 levels
decrease
-
Name three reasons for causation of chronic obstructive pulmonary diseases
smoking, dyspheah, acidosis
-
Name the 3 types of lung carcinomas
squammous, adeno, small cell
-
During fetal life gas exchanges are performed through
placenta
-
Cystic fibrosis is caused due to
high visous mucous
-
Why respiratory rate of new born babies are high?
need more O2
-
In infants breathing is relied on movements of____ and is called____
diaphragm, abdominal breathing
-
Normal adult respiratory rate is
12-18 per min
-
Many old people tend to become hypoxic during sleep due to the decrease in
vital capacity
-
It takes____ weeks for lungs to fully develop during growth
28
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