Respiratory System Flashcards
(10 cards)
What is the pathway of air through the respiratory system
Nostrils (nasal openings)
Naval cavity
(or just the oral cavity)
Pharynx
Voice box (larynx)
Trachea (wind pipe)
Primary Bronchi
Secondary Bronchi- left and right bronchus
Tertiary Bronchi
Smaller Bronchi bronchioles
Alvioli (of the lungs)
Structure of alveoli
Why
Only 1 layer of epithelium, very thin
Thin area for gaseous exchange
Highly vascularized - significant supply of blood
Respiratory surfaces of other animals
Worm?
Frog
Fish
Bats
No lungs but respiration through the outer body surface. Rain helps with the process
Breathe through surface of skin in water
On land- lungs but lungs are not formed properly
Gills- gas exchange occur
Very well developed lungs. Efficient exchange of gas to accommodate for that energy they require for flying
What happens when we inhale
Exhale
Enlargement of rib cage
Contraction of intercostal muscles
Diaphragm contracts and flattens increased area
and air pressure is higher in atmosphere than in lungs
Diaphragm relaxes and curves up
Relax of intercostal muscles
Smaller area
Smaller rib cage
Air pressure is lower in atmosphere than in lungs
Upper respiratory tract parts are
Function to:
Nose, pharynx, and larynx
warm, moisten and filter incoming air
Nose:
Ø
lined with ciliated epithelium
Ø
covered in mucus and washed by tears
Ø
has significant blood supply (to warm incoming air)
Larynx made of
Adam’s apple in men is a (result of
Larynx is called ______ because of the _______ ___ _________ _______
Ø cartilages
thyroid cartilage (largest) at the front
Ø
testosterone production)
Ø
“voice box”
location of vocal folds (cords)
What is a lacrimal gland
Why is mucus in nasal cavity important?
The nasal cavity has large blood supply why
tear gland
keeps every moist and warm
highly vascularized with blood vessels,
to warm the incoming air
Vocal chords in the larynx runs from
Made
High pitched
Low Pitch-
Run from thyroid Cartlidge to the back
from elastic tissue, flexible so air can pass through to vibrate
Tension of vocal chord increases
tension of vocal reduced
What are sinuses
What is sinusitis?
Cavities within your skull:
maxillary biggest
Inflammation ( swelling ) of the membranes lining sinuses
accumulation of mucus
mucus adds a lot of pressure
Respiratory illnesses
Bronchitis
Asthma
Pneumonia
Lung cancer
(cough fever)
–inflammation of bronchi
–inflammation of bronchi, increased production of fluids; allergic reaction
–inflammation of alveoli, fluid in
alveolar sacs. Caused mainly by bacteria. (antibiotics)
Serious condition for elderly and kids
smoking main cause
damaged tissue
