Respiratory System Flashcards
Nasal cavity
Area where inhaled air is warmed, filtered and moistened.
Cilia
Filters dust and particles from inhaled air.
Oxygenated air
Freshly inhaled air rich in oxygen
Deoxygenated air
Expelled air low in oxygen
Inhaling
Breathing in
Exhaling
Breathing out
Mucus
Moistens and filters inhaled air
Pharynx
Back of mouth/throat
Larynx
Voice box
Epiglottis
Flap of cartilage that directs food and air
Trachea
Wind pipe
Cartilage rings
Prevent the trachea from collapsing
Left bronchus
The tube linking the trachea to the left lung
Right bronchus
The tube linking the trachea to the right lung
Lungs
Two large lightweight respiratory organs of the body
Left bronchioles
Small tubes carrying air to airsacs in the left lung
Right bronchioles
Small tubes carrying air to airsacs in the right lung
Alveoli
Tiny airsacs arranged in clusters surround by capillaries
Rib cage
Protects the lungs and assists with inhaling and exhaling
Diffusion
The exchange of gases between the alveoli and blood in the capillaries
Diaphragm
Wall of muscle at the base of chest cavity.
