Respiratory pp pt 1 Flashcards
Animals that live in water must obtain oxygen from
the water
Some organisms like___and___ have
a large surface area through which they exchange gases with the external environment
hydra and planaria
BOTH aquatic invertebrates and vertebrates have ___that extract O2 from the water
gills
___are finely divided, vascularized outgrowths of the body surfaces (such as the pharynx).
gills
Various mechanisms pump water across the
gills
water passes the gills…..blood flows through the gills in opposite direction which is
counter current flow
Insects have a system of airtubes called ____through which O2 is delivered directly to cells, without entering the blood.
tracheae
The tracheae end in smaller tubules knows as
trachioles
In human respiration, air enters ___ then nasal passages
nostrils then nasal passages
In human respiration, the Involved sensory organs (inside nose and mouth) with smell receptors attached to olfactory nerve detect odor types such as: 5
camphor, musk, flower, mint, or acrid
In human respiration, air is warmed and moistened in nasal passages before passing to the
pharynx
when air passes from pharynx through glottis to larynx, then trachea
Permanently held open by
Facilitates movement of
cartilage rings
air
When food is swallowed
The larynx____, and
The glottis is ____ by the epiglottis
Backward movement of soft palate covers the entrance of nasal passages into the ____
rises, closed,pharynx
when the trache divides, it forms two primary ___
Bronchi enter the right and left ____
bronchi, lungs
Bronchi branch until there are a great number of tiny ____
Each____ terminates in an elongated space enclosed by ___
bronchioles, bronchiole, alveoli
