Unit 7: Lecture 3
Anatomy & Physiology 2201 with Hill at University of Missouri- Columbia
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By: ashlee fuhrken
Created: 2011-11-13
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Created: 2011-11-13
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respiratory system function
exchange oxygen and carbon dioxide between blood and air
types of respiration
- ventilation
- external respiration
- internal respiration
- cellular respiration
ventilation
(breathing)
movement of air in (inspiration) and out (expiration) of lungs
external respiration
exchange of gases between inhaled air and blood
internal respiration
exchange of gases between blood and tissues
cellular respiration
use of oxygen to produce ATP(energy) within cells, generates carbon dioxide as waste
respiratory system tracts
- upper respiratory tract
- lower respiratory tract
respiratory system functional zones
- conducting zone
- respiratory zone
conducting zone function
filter, warm and humidify inspired air and deliver it to the lungs
conducting zone components
- nose
- paranasal sinuses
- pharynx
- larynx
- trachea
- bronchi
nose function
- primary "air-conditioner" of the respiratory system
- filters
- warms
- humidifies
parts of the nose
- nares
- nasal hair
- capillaries
- mucus membrane
- conchae
nares function
(nostrils)
regulates airflow
nasal hair function
filters air
capillaries of the nose function
warms air
epistaxis
nose bleed
mucus membrane of the nose function
moistens air
parts of the conchae in the nose
- superior concha
- middle concha
- inferior concha
increases surface area with mucus membrane
paranasal sinuses
- frontal
- ethmoid
- sphenoid
- maxillary
actual function debated
parts of the pharynx
"throat"
- nasopharynx
- oropharynx
- laryngopharynx
larynx
"voice box"
larynx
epiglottis
paranasal sinuses
air filled sinuses, cluster around the nasal cavity
warm, moisten, filter air
lighten the skull
olfactory epithelium
in the nasal cavity
contain olfactory nerve fibers that rise from olfactory receptor cells
psuedostratified columnar epithelium
olfactory bulb
nerves from olfactory epithelium pass through cribriform plate and synapse here
olfactory tract
fibers from olfactory bulb neurons extended posteriorly
pharynx
connects the nasal cavity to the larynx and esophagus
parts of the pharynx (superior to inferior)
nasopharynx
oropharynx
laryngopharynx
nasopharynx
contains pharyngeal tonsil (adenoids)
pharyngotympanic/auditory tube
pharyngeal tonsil(adenoids)
lymph organ destroys pathogens entering nasopharynx in the air
pharyngotympanic/ auditory tube
drains the middle ear
opens into the wall of the nasopharynx
oropharynx
contains palatine and lingual tonsils
stratified squamous cells
inhaled air and swallowed food passes through it
palatine tonsils
lateral walls of fauces
lingual tonsils
posterior surface of tongue
laryngopharynx
stratified squamous epithelium
pharyngeal constrictor muscles
larynx functions
produce vocalizations
provide open airway
act as switching mechanism to route air and food into proper channels
larynx cartilages
thyroid
cricoid
arytenoid
epiglottis
thyroid cartilage
open book
2 cartilages
adams apple
cricoid cartilage
below thyroid
on top of trachea
complete ring
arytenoid cartilage
anchors the vocal cord
posterior part of larynx
epiglottis
elastic cartilage mostly covered in mucosa
attaches to the back of the tongue
keeps food from going down the wrong hole
larynx folds
vestibular folds
vocal folds
vestibular folds
(false vocal cords)
no part in sound production
vocal folds
(true vocal cords)
air exhale causes to vibrate in wave motion and clap together
ventricle in larynx
cavity between false and true vocal folds
contains lubricating glands
enhances high frequency sounds
laryngeal muscles
most are vocal cord adductors
posterior cricoarytenoid
opens glottis by abducting true vocal cords
cricothyroid
stretches/ lengthens true vocal cords
tensor vocal cords
higher pitch
loudness
depends on force air rushes through
About this deck
By: ashlee fuhrken
Created: 2011-11-13
Size: 50 flashcards
Views: 19
Created: 2011-11-13
Size: 50 flashcards
Views: 19
About StudyBlue
STUDYBLUE makes things that make you better at school.
Things like online flashcards with photos and audio.
Things like personalized quizzes and friendly reminders about when (and what) to study next.
Think of it as a digital backpack™: access to all of your study materials online and on your phone.
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“I have been getting MUCH better grades on all my tests for school. Flash cards, notes, and quizzes are great on here. Thanks!”
Kathy
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