Download 5.2 PowerPoint 4.11.16

RESPIRATORY SYSTEM
4.11 .16
MAJOR ORGANS
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N___
P_____
L_____
T______
B_____
B__________
L____
TRACTS
_____ Respiratory
Tract
 Nose
 Mouth
 Nasal cavity
 Pharynx
 Larynx
_____ Respiratory
Tract
 Trachea
 Bronchi
 Bronchioles
 Lungs
ZONES
_________ Zone
Everything except
the exchange
 N___
 M____
 N____ ______
 P______
 L_____
 T______
 B______
 B__________
___________ Zone
Where the
respiration actually
takes place
 Lungs
 Alveoli
UPPER RESPIRATORY TRACT
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Filter and remove foreign particles
Humidify and control temperature of inspired air
Produce sound (voice)
Sense of _____ (olfactory sense)
Aid in immunity
Conduct air to lowest respiratory tract
UPPER RESPIRATORY TRACT
 _____
 Only part of respiratory system that is external to the body
 Openings are called nostrils or nares
 _____ Cavity
 ______ the nose
 Split into ____ and _____ by
the nasal septum
 Mucus membrane lined to
filter air
 Front of nasal cavity, inside
each nostril, is the
_________ region
 Contains oily cilia: trap
particles
 __________ receptors
 Along roof of nasal cavity
UPPER RESPIRATORY TRACT
 Nasal cavity (contd)
 Rest of nasal cavity is called
the __________ cavity
 This region warms the air,
but is lined with thinly lined
veins
 These are the causes of
___________
 __________
 3 uneven bones that extend
through the nasal cavity
 Increase _________ area to
filter air
CHECK YOUR UNDERSTANDING
1. What structures make up the respiratory system?
2. What are the functions of the upper respiratory tract?
3. What structures make up the lower respiratory tract?
4. What is the only external part of the respiratory system?
UPPER RESPIRATORY TRACT
 _______
 Commonly referred to as the
roof of the mouth
 Separates the nasal cavity
from the _____ cavity
 Anterior part is supported by
bone
 Called the “____ palate”
 Posterior plate is composed
of soft muscle and tissue
 Called the “____ palate”
UPPER RESPIRATORY TRACT
 Palate (contd)
 ____
 Hangs from the end of the
soft palate
 Prevents food from entering
_____ cavity
 Small role in speech
 Small conical mass of
connective tissue and
______ fibers
UPPER RESPIRATORY TRACT
 Palate (contd)
 When parts of the palate
do not completely fuse
together during fetal
development, a _____
palate is the result
 A cleft palate leaves an
opening in the roof of the
mouth, or a gap between
the lip and the nose
 Occurs in 1 out of every
___ babies
CLEFT PALATE
CLEFT PALATE
UPPER RESPIRATORY TRACT
 Sinuses
 ___ filled cavities that surround the nose
 Lined with mucous membranes
 Connect to nasal cavities by ducts that drain into the
nose
 __ sinuses
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Frontal sinus
Ethmoidal sinus
Sphenoidal sinus
Maxillary sinus
UPPER RESPIRATORY TRACT
 Sinuses
 _____ the weight of the head
 Warm and moisten air
 Amplify the tone of voice
 “nasaly” sound during a sinus infection (stuffed up)
CHECK YOUR UNDERSTANDING
 How many types of sinuses do you have and what are they?
 Where are they located?
 What is another name for your palate?
 What is the function of the cilia in your nose?
 Imagine you are a doctor and one of your patients recently
gave birth to a baby with a cleft palate. How would