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Just Breathe. Respiratory System HST. Functions of the Respiratory System. Take in O2 for use on a cellular level Expels waste such as CO2 & H2O from the cells Air flow over larynx make speech possible. Word Parts. nas/o alveo/lo sinus/o pneum/o, pneumon/o, pneu

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Just breathe

Just Breathe

Respiratory System

HST


Functions of the respiratory system
Functions of the Respiratory System

  • Take in O2 for use on a cellular level

  • Expels waste such as CO2 & H2O from the cells

  • Air flow over larynx make speech possible


Word parts
Word Parts

nas/o alveo/lo

sinus/o pneum/o, pneumon/o, pneu

epiglott/o atel/o pulm/o

pharyng/o cyan/o pulmon/o

laryng/o -ectasis tachy-

trache/o phon/o thorac/o

bronch/o pleur/o -thorax

bronchi/o -pnea


The respiratory tract
The Respiratory Tract

  • Upper Respiratory Tract = nose, mouth,

    pharynx, larynx

    epiglottis, trachea

  • Lower Respiratory Tract = lungs,bronchi, bronchioles, alveoli

    These are structures located

    in the ______________cavity.


Opening of the respiratory system
Opening of the Respiratory System

  • Nares-

Nares - nasal openings


Nasal septum
Nasal Septum

Separates R & L nares


Functions of the nose
Functions of the Nose

  • Mucous membranes -Warm, filter, moisten inhaled air


Cilia tiny hairs inside the nose
Cilia = tiny hairs inside the nose

  • *Move mucous &

    trapped particles

    into esophagus


  • Mucous membranes

    * line surfaces of

    resp tract AND

    *

    secrete mucus to

    moisten surfaces

    and trap debris


Sinuses
Sinuses

-air filled cavities

warm & moisten air

-give *resonance to voice

*richness, significance


Pharynx
Pharynx

AKA the throat

  • Holds tonsils, adenoids

  • Receives air & food from mouth

  • Three divisions

    * naso_____________

    * oro ______________

    * laryngo ___________


Larynx
Larynx

AKA “Voice Box”

*Contains vocal cords

*Produces sound for speech



Epiglottis

Prevents food

from entering

the trachea

during swallowing

glottis


Trachea bronchial tree alveoli
Trachea, Bronchial Tree & Alveoli

AKA Windpipe

* Carries air between

pharynx & bronchi

*************

* Right & Left Bronchi

branch off trachea

to take air to lungs

***************

* Bronchioles carry air from bronchi to alveoli

Trachea

Bronchioles


Alveoli
Alveoli

*Site of cellular respiration

i.e. O2 & CO2 are

exchanged here

*Occur in grape like clusters


Lungs
Lungs

*Hold and support

structures necessary for

respiration

* R has 3 lobes(divisions)

* L has 2 lobes


Pleura
Pleura

*Multilayered membrane

surrounding the lung

*Rich nerve & blood supply

*Protects & prevents

friction

intercostal muscles


Diaphragm
Diaphragm

  • Muscle that separated thoracic cavity from abdominal cavity

  • Contraction & relaxation causes respiration


Respiration
Respiration

  • Inhalation

  • Exhalation

  • Normal Adult respiratory rate: 14-20/min

  • Normal pediatric rate: 20 – 25

  • Rate=

  • Volume=

  • Rhythm=


  • Eupnea *Hyperventilation

  • Tachypnea *Sleep Apnea

  • Bradypnea *Cheyne Stokes

  • Apnea Dyspnea (SOB)

  • Hypernea Hyperventilation

  • Hypopnea


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