The ear Flashcards
Name the 3 parts of the ear
External ear - auris externa
Middle ear - auris media
Internal ear - auris interna
Name the 2 parts of the external ear
Auricle
External acustic meatus
What does the auricula consist of
Dorsum auriculae
Scapha
Concha auriculae
Name the canal leading from the base of the auricle to the tympanic membrane
Meatus acusticus externus
Name the externally visible part of the ear
Auricle
What separates the middle ear form the external acustic meatus
tympanic membrane - membrana tympani
Name the glands in meatus acusticus externus
gll. ceruminosae
Name the three structures of the middle ear
Cavum tympanii (tympanic cavity)
Ossicles auditus (auditory ossicles)
Tuba auditiva (auditory tube)
Name 2 openings between middle and internal ear
Fenestra vestibule
Fenestra cochlea
(Vestibular and cochlear window)
Name 3 ossicles of the middle ear
Malleus (hammer) <-external
Incus (anvil) <-middle
Stapes (stirrup) <-internal
Name 2 muscles connected with the middle ear
M. tensor tympani
M. tensor strapedius
Name the structure connecting the middle ear and the nasopharynx
Tubae auditiva
Name 2 parts of the auditory tube
Pas ossea tubae auditiva
Pars cartilaginea tubae auditiva
Name 2 openings of auditory tube
Ostium tympanicum tubae auditivae
Ostium pharyngeum tubae auditivae
Which animal has diverticulum tubae auditivae
Equine
Name the enlargements which is specific for equine (in ear)
Diverticulum tubae auditivae
Name 3 parts of membranous labyrinth of internal ear
Cochlea
Vestibulum
Semicircular canals
Name the fluid in membranous labyrinth
Endolymph
Name 2 enlargements of the centre of membranous labyrinth
Saccus
Utriculus
What sytems communicate through ductus reuniens
Cochlear labyrinth
Vestibular labyrinth
Name the short duct connecting the saccules with the ductus cochlearis
Ductus reuniens
Name the parts of osseus labyrinth
Vestibulum
Canales semicirculares ossei
Cochlearis
Name the fluid in the spaces between the membranous and osseus labyrinths (filters osseus labyrinth)
Perilympha
Where can perilympha be found
between the membranous and osseus labyrinths
Name 2 parts of the internal acustic meatus and underline the proximal one
Porus acusticus internus <-proximal
Meatus acusticus internus
Name the two canal openings of meatus acusticus interna
Porus acusticus internus
Meatus acusticus internus
Name the structures in par statica labyrinthi of vestibule labyrinth
Saccule
Utricle
Semicircular ducts
What connects the vestibular apparatus of the inner ear with the brain
Vestibular nerve
Where is the spiral organ of corti localised
Paries tympanicus ductus cochlearis
Tympanic part of cochlear duct
Name the part of the membranous labyrinth between scala vestibule, housing spiral organ of Corti
Cochlear duct/scala media
Name the 2 types of cells in spiral organ of corti
Sensory and supporting
Name 2 cavities connected by the tuba auditiva
Nasopharynx
Tympanic Cavity