Respiratory System Flashcards
Place the following structures in the correct number. Start with the nose:
Nose, trachea, nasal cavity, bronchioles, alveoli, bronchi, nasopharynx
Nose = 1 Nasal cavity = 2 Nasopharynx = 3 Trachea = 4 Bronchi = 5 Bronchioles = 6 Alveoli = 7
Match these neurotransmitters with their action on bronchiole smooth-muscle:
Acetylcholine and noradrenaline
Acetylcholine = smooth muscle contraction Noradrenaline = smooth muscle relaxation
At rest, exhalation is …
A passive process and due to increased pressure within the lungs
Contraction of the diaphragm causes the intra-alveolar pressure to …
Decrease
For air to flow into the alveoli, the pressure within the alveoli must …
Decrease
If the size of a closed container decreases, the pressure of the gas inside that container …
Increases
What structure belongs to the respiratory zone?
Alveoli
The diaphragm is innervated by the …
Phrenic nerve
The organs and tissues actively involved in increasing the volume of the thorax include …
Diaphragm, intercostal muscles and phrenic nerve
The pleural membranes are located between …
The outside surface of the lungs and the indispensable surface of the thorax
Which structure is able to alter it’s diameter?
Bronchioles
