Anatomy 2nd midterm ( Respiratory System ) 1 Flashcards
(31 cards)
Respiratory System is
the cellular levels of how cells use oxygen.
The Respiratory System expands from the
Nose ——> throat ——> lungs
what does the Trachea connect
the throat to the lungs
The Trachea is
a tubular outgrowth of the embryonic gut.
what does the trachea begin as
a bud in pharynx floor.
The trachea divides into the left and right __________, which carry the air __________.
1) primary bronchi (fork)
2) to the lung
the trachea must remain
open at all times.
what is another word for open
patent
tubes are held open by
cartilaginous structures
cartilaginous structures are
skeletal structures made up of cartilage
what is wrapped around the tubes
tracheal rings
Tracheal rings are found
around the bronchi (as well as deeper branches)
the tubes are lined by
endoderm
Cartilaginous support of bronchi is derived from
visceral arch skeleton.
Therefore, from NEURAL CREST.
the internal surface of the tube to the ________, comes from the same material that makes the internal surface of the ________.
1) lungs
2) gut
all the coelomic cavities are derived from
mesoderm
cartilaginous structures are richly supplied with
Oxygenated blood and nerves (both sympathetic and parasympathetic )
The __________ pleura cover the lungs.
Parietal
The visceral ________ lines the lungs.
pleura
Coelom wraps around ______ (as if the lungs were pushing into a _________ constructed balloon).
1) lungs
2) mesodermally
most of the volume in the lungs consists of
- tubes
- bloodbessels
- nerves
- connective tissues
(only a small space for air)
DON’T MEMORIZE JUST GET AN IDEA
Most of the lungs is
Solid tissue (spongy)
Nasal Cavity is surrounded by
NOSE Frontal Nasal Vomer Ethmoid Maxilla
Vomer seperates the ____________ from your internal nasal cavity that comes up against ____________.
1) Right & Left side
2) the ethmoid.