The Respiratory System
Vocabulary that relates to animal respiratory system.
Terms
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- nasal cavity
- connected to the mouth by a hard and soft palate
- bronchioles
- small tubes from the bronchi
- carbon dioxide
- consists of a carbon and two oxygens, is the waste product of cellular respiration
- larynx
- voice-box controls breathing, keeps objects out of lungs
- oxygen
- element needed for aerobic respiration
- lungs
- spongy organ that expands when filled with air, main purpose is gas exchange
- bronchi
- two tubes from trachea, each side enters a lung
- trachea
- wind pipe, consists of cartilage rings, similar to a vacuum cleaner hose
- epiglottis
- a valve-like structure that shuts when swalloing food
- pharynx
- common passageway for food and air, but not at the same time
- alveoli
- smallest bronchioles, exhausts carbon dioxide
- diaphragm
- muscle located beneath the lungs separates the chest cavity from abdominal cavity
- nostrils
- external openings, also known as nares