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Respiratory system

Functions of repiratory system

Provide area for gaseous exchange

Protect respiratory surface

Produce sounds

All of the above

Upper respiratory system contains

Nose

Nasal cavity

Paranasal sinuses

Larynx

Pharynx

Conducting zone

From nose to pharynx

From nasal cavity to bronchiole

From nasal cavity to alveoli

Which type(s) of cell produce surfactant to reduce surface tension in alveolar surface

Simple squamous epithelial cell

Type II cells

Conducting cells

Pleura consists of which two layers

Parietal pleura

Visceral pleura

Pulmonary pleura

Pleural cavity

External respiration includes all processes involved in exchange of oxygen and carbon dioxide between interstitial fluids of body and external environment

True

False

If oxygen supply is cut off completely, it is called

Anoxia

Hypoxia

Equation of air flow into and out of lungs

(Pip - Patm)/ R

(Patm - Palv) /R

(Palv - Pip) /R

Transpulmory Pressure

(Pip - Patm)/ R

Pip - Patm

Palv - Pip

Saturation of haemoglobin increases with

Increase in temperature

Increase in pH

Decrease in temperature

Decrease in pH

After entering blood stream, CO2 can be converted into

Carbonic acid

Carbominohemoglobin

Carbaminohemoglobin

Water

Bronchondilation happens when

PCO2 increases

PCO2 decreases

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