Respiratory System Flashcards
Explain: Primary (respiration)
Brings oxygen into the body and takes C02 out.
Explain: Secondary (respiration)
Phonation (voice production), regulation of body temperature, regulation of acid-base balance (blood pH), sense of smell.
Define: Internal (respiration)
Cellular. exchange of O2 and CO2 between blood in systemic capillaries and all cells and tissues in body.
Define: External (respiration)
Exchange of O2 and CO2 between the inhaled air and blood flowing through pulmonary capillaries within the lung.
List the components of the upper respiratory system:
- nostrils
- nasal passages
- nasal turbinates
- pharynx
- larynx
- trachea
Define: Nasal septum
separates left and right nasal passage.
TRUE or FALSE: cilia project from cell surface into layer of mucus.
TRUE
Describe the function of the nasal passages.
Warm, humidify, and filter inhaled air.
What is the purpose of cavities?
Help to make the bone/skull feel lighter and increase surface area.
What 2 components work together to prevent swallowing from interfering with breathing vice versa?
Pharynx & Larynx.
The trachea extends from ___________ to the ____________.
Larynx to the thorax.
List the components of the lower respiratory system:
Bronchi, bronchioles, alveolar ducts, alveoli, diaphragm.
The alveoli is a site of ___________ respiration.
External
Lungs are divided into lobes, how many lobes (left & right) for a cat and dog?
3 left, 4 right.
What is the pleura?
Membrane that lines and covers organs and structures in the thorax.
Negative pressure = __________________ = ________________
vacuum pressure, intrathoracic pressure
Inspiration is the process of………
drawing air into the lungs (inhalation)
Expiration is the process of……….
pushing air out of the lungs (exhalation)
What are the three volumes when measuring respiratory volume?
Tidal - volume of air inspired & expired in one breath.
Minute - volume of air inspired & expired in one minute of breathing
Residual - volume of air remaining in the lungs after maximum expiration.
Define: Hypoxia
Lack of oxygen in the body
