AnP Chapter 18 (LO5) Flashcards
(140 cards)
The respiratory and cardiovascular systems work closely together to provide the body with…
oxygen and remove carbon dioxide
Respiratory system 3 roles
Influences sound production in speech
Makes sense of smell and makes taste possible
Helps the body maintain homeostasis through a regulation of acid base balance
respiratory two tracts
upper respiratory
lower respiratory
The upper respiratory tract 3 purposes
warm and humidify inspired air
responsible for senses of smell and taste
swallowing food
The upper respiratory tract consists of
above the larynx
nose and nasal cavities
pharynx
larynx
Functionally the respiratory system also includes
the oral cavity
rib cage
respiratory muscles
nose and nasal cavities function in respiratory system
air enters and leaves the respiratory system through the nose
nose and nasal cavity: cilia
filter out dust and largen foreign particles
nose and nasal cavity: palate
bony structure that separates the nasal cavity from the mouth
nose and nasal cavity: septum
a vertical plate of bone and cartilage that separates the cavity into two halves
nose and nasal cavity: conchae and turbinates
bones create narrow passages ensuring that most air contacts and mucous membranes on the way through
sphenoid sinus and paranasal sinuses purpose
drain mucous into the nasal cavity
Pharynx
tube aka throat
Located posterior to oral cavity - extends from the soft palate to the hyoid bone
3 sections of the pharynx
nasopharynx
Oropharynx
Laryngopharynx
nasopharynx:
extends from the posterior nares to the soft palate
Oropharynx
the space between the soft palate and the base of the tongue
what does the oropharynx consist of
Palatine tonsils
lingual tonsils found at the base of the tongue
Laryngopharynx
passes dorsal to the laryngopharynx to the oesophagus
what passes through nasopharynx, oropharynx and laryngopharynx
Only air through nasopharynx
Food and air through oropharynx and laryngopharynx
Larynx
Chamber formed by the walls of cartilage and muscle; often called the voice box
connects the pharynx and trachea
3 functions of larynx
It prevents food and liquids from entering the trachea
acts as an air passage between the pharynx and trachea
Produce sound
what is the larynx formed of
9 pieces of cartilage
Epiglottis:
closes over the top of the larynx during swallowing to direct food and liquids into the esophagus
Thyroid cartilage
is the largest piece of cartilage known as the Adam’s Apple