Veterinary respiratory system I Flashcards
latin for respiratory system
apparatus respiratorius
protective functions of the airways?
heat
moisten
filter
normal blood pH?
7.4
what parts does the upper respiratory tract consist of?
the nose, paranasal sinuses, pharynx, and larynx
though note that some materials say the larynx belongs to the lower-
what parts does the lower respiratory tract consist of?
the trachea, bronchial tree, and lungs
name the parts of the “conducting system” in order?
nostrils, nasal cavity, paranasal sinuses, nasopharynx, larynx, trachea, and extra- and intrapulmonary bronchi
define surfactant
chemical substance to keep the pulmonary alveoli open
(an amphiphilic lipoprotein complex that greatly reduces the surface tension in the alveoli of the lung keeping them open)
conducting system histologically lined by?
ciliated columnar cells, and a variable proportion of secretory goblet and serous cells
difference between cartilage process and tubercle?
processes are “naked” cartilage, tubercles have soft tissue or other on
adam’s apple in latin
prominentia laryngea
what landmark is found in only some species just rostrally to the main pulmonary bifurcation?
bronchus trachealis in su and ru (and leads to cranial lobe of right lung)
name two parts of os ethmoidale
lamina cribrosa (cribriform palate that separates the ethmoid bone from the cranial cavity)
labyrinthus ethmoidalis
(cellulae ethmoidales in the pig and ruminants)
porous plane relating to olfactory system and the complicated mass behind it (rostrally)
lamina cribrosa
labyrinthus ethmoidalis
In addition to delivering oxygen via air inspiration, the resp. system also participates in what 4 functions?
olfactory system
phonation
body temperature regulation (panting)
blood pH regulation
ciliary beat frequency?
ca 1000 strokes/minute
in eq mucus moves longitudinally at a rate of up to?
20 mm/ minute
what serves as a transitional system?
microscopic bronchioles serve as a transition zone between the conducting (ciliated) system and the gas exchange (alveolar) system
distal bronchioles no longer have
ciliated cells nor goblet cells (but instead have other types of secretory cells)
thoracic part of the trachea, bronchi, and lungs are considered to be?
essentially sterile
External nose
nasus externus
two words for the nose
nasus; rhin
the root of the nose
radix nasi
the dorsal surface of the nose
dorsum nasi
the wings of the nose
alae nasi
the tip of the nose
apex nasi
the nostrils
nares
the modified skin around the nose is called what in latin?
rhinarium
in Car, ov, cap the shiny skin of the nose is called the ?
nasal plate (planum nasale)
in su the skin of the snout is called?
the rostral plate (planum rostrale)
in bo the skin that extends to the upper lip from the nose and contains glandular tissue is called?
the nasolabial plate (planum nasolabiale)
do equine have rhinarium?
eq have normal skin around the nostrils
rhinarium is innervated by?
a branch of the trigeminal nerve (V)
the external nose’s main cartilages in latin
cartilago nasi lateralis: dorsalis et ventralis
cartilago nasalis accessoria lateralis
cartilago nasalis accessoria medialis in ov, bo, eq
in su, additional medial support of the nose is given by?
the rostral bone (os rostrale)
which is set against the rostral end of the nasal septum, and gives attachment to the nasal cartilages
median groove of the outer nose
philtrum
translate the equine alar cartilage and describe it
sg. cartilago alaris/ pl. cartilagines alares
gives dorsal, medial and ventral support. The cartilage has a “comma” shape and is attached to the rostral end of the nasal septum
the dorsal part of the nostril in eq leads to?
a blind nasal diverticulum (diverticulum nasi)
translate lateral accessory nasal cartilage and which species does not have it?
cartilago nasalis accessoria lateralis
lacking in eq
translate medial accessory nasal cartilage and which species have it?
cartilago nasalis accessoria medialis
in ov, bo, eq
Nasal cavity
cavum nasi
the nasal cavities are divided by?
the nasal septum (septum nasi)
nasal cavities extend caudally to?
the choanae and os ethmoidale
cartilage of the nasal septum
cartilago septi nasi
the cartilage of the nasal septum is composed of?
hyaline cartilage, but ossified in its most caudal part
and is partially membranous too
translate membranous part and is where?
pars membranacea is medially and rostrally (ca) located in the nasal septum
translate osseous part and is where?
pars ossea is caudally, composed of perpendicular ethmoid lamina, vomer, and in su and bo of rostral bone
rostral part of the nasal cavity called?
vestibulum nasi
nasal vestibule is lined by?
stratified squamous epithelium and skin containing hair, hair follicles and sebaceous glands
orifice of the nasolacrimal duct
ostium nasolacrimale
name the nasal conchae
dorsal nasal concha (concha nasalis dorsalis)
middle nasal concha (concha nasalis media)
ventral nasal concha (concha nasalis ventralis)
ethmoidal conchae (conchae ethmoidales)
describe the dorsal nasal concha
is attached to the ethmoid and nasal bones; is the longest in all species
describe the middle nasal concha
much smaller than the dorsal, is more caudally