The Breathing System (LC 2027) (Leaving Cert Biology): Flashcards
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Practise the cards
15 cards from this deck
Study of organism structure
Study of organism structure
Anatomy
Study of organism functions & processes
Study of organism functions & processes
Physiology
Muscle separating thoracic & abdominal cavity
Muscle separating thoracic & abdominal cavity
Diaphragm
Flap covering trachea when swallowing
Flap covering trachea when swallowing
Epiglottis
Common name for larynx
Common name for larynx
Voice box
Material forming trachea rings
Material forming trachea rings
Cartilage & elastic fibres
Tiny air sacs where gas exchange occurs
Tiny air sacs where gas exchange occurs
Alveoli
Number of alveoli in lungs
Number of alveoli in lungs
Over 700 million
Process: enters blood, removed
Process: enters blood, removed
Gas exchange
Protein carrying in red blood cells
Protein carrying in red blood cells
Haemoglobin
Inhalation: active or passive process?
Inhalation: active or passive process?
Active process
Exhalation: active or passive process?
Exhalation: active or passive process?
Passive process
% oxygen in inhaled air
% oxygen in inhaled air
21%
% in exhaled air
% in exhaled air
4.4%
Brain region controlling breathing rate
Brain region controlling breathing rate
Medulla oblongata