Chapter :23 Respiratory System Physiology (lecture 14 and 15) Flashcards
In the Respiratory system what does cell use and what do they release?
Cells continually use O2 and release CO2
What is the respiratory designed for?
For gas exchange
What does cardiovascular system transport and where?
Transport gases in blood
failure of both system (cardiovascular and respiratory)
Rapid cell death from O2 starvation
what is the olfactory epithelium for?
sense of smell
Paranasal does what?
lighten skull and resonate voice
Pharynx functions? 3 things ( micro essay)
- passageway for food and air
- resonating chamber for speech production
- tonsil (lymphatic tissue) in the walls protects entryway into body
Nasopharynx
passageway for air only
Oropharynx
Common passageway for food and air
Laryngopharynx
common passageway for food and air and ends as esophagus inferiority
Thyroid cartilage forms what?
Adam’s apple
What happens during swallowing?
larynx moves upward
epiglottis bends to cover glottis
What does true vocal cords contain?
Skeletal and elastic ligamnet
what happens when 10 intrinsic muscles contract?
cartilage moves and stretch vocal cord tight
how is sound produced?
When air is pushed past tight ligament