Pre-Module Knowledge Check

IDevice Question Icon Pre-Module Knowledge Assessment
The upper respiratory system consists of:
  
the nose and mouth
the nose, nasal cavity and pharanyx
the oral cavity, epiglottis and trachea
The nasal cavity, trachea and pharanyx.

The lower respiratory tract comprises:
  
the throat and lungs
the pharanynx, trachea and alveoli
the larynx, trachea, bronchi , bronchioles and alveoli
the soft palate, trachea, bronchi , bronchioles and alveoli

The trachea can best be described as:
  
a "pipe" which connects the lungs to the mouth
a pipe made up of several "C" shaped rings which allow for expansion and contraction during the breathing process
a smooth cartilagenous tube which stretches and contracts during the breathing process
a series of "O" shaped cartilagenous rings expand and contract during the breathing process

What happens at the alveoli level during the breathing process?
  
Oxygen from the blood crosses the alveloar membrane into the lungs while carbon monoxide crosses into the blood, attaching to the red blood cells.
Oxygen crosses the alveloar membrane into the lungs while carbon dioxide crosses into the blood, attaching itself to red blood cells.
Carbon dioxide crosses the alveloar membrane into the lungs while oxygen crosses into the blood.

A person's respiratory rate is controlled by:
  
the CNS (central nervous system) ... when the carbon-dioxide level in the blood rises, the respiratory rate goes up.
the CNS (central nervous system) ... when the oxygen concentration in the blood rises above what is needed for the current level of activity, the respiratory rate goes down.
sensor cells in the walls of the alveoli - when the carbon-dioxide level in the blood rises, the respiratory rate goes up.

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TASMANIAN AMBULANCE SERVICE Clinical Practice & Education Unit