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UTA BIOL 2457 PRACTICAL 2 2026
ACTUAL QUESTIONS WITH VERIFIED
ANSWERS.
Basilar membrane - correct answer-A structure that runs the
length of the cochlea in the inner ear and holds the auditory
receptors, called hair cells.
Tectorial membrane - correct answer-A membrane located
above the basilar membrane; serves as a shelf against which
the cilia of the auditory hair cells move
Cochlear duct - correct answer-a fluid filled cavity within the
cochlea that vibrates when sound waves strike it
Organ of Corti - correct answer-tissue containing the hair cells
necessary for hearing
Hair cells - correct answer-The hairlike sensory receptors for
sound, which are embedded in the basilar membrane of the
cochlea.
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Vestibule - correct answer-entrance
Utricle - correct answer-the larger of two sacs within the
membranous labyrinth of the vestibule in the inner ear
Saccule - correct answer-A small, fluid-filled sac under the
utricle in the vestibular system that responds to static positions
of the head.
Semicircular canals - correct answer-three canals within the
inner ear that contain specialized receptor cells that generate
nerve impulses with body movement
Semicircular ducts - correct answer-three small membranous
tubes of the vestibular labyrinth within the bony semicircular
canals
Cristae of Ampullares - correct answer-Equilibrium receptors for
rotation at the end of each semicircular canal in the ampulla
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Eustacian tube (pharyngotympanic tube) - correct answer-
allows air to enter the middle ear and helps equalize air
pressure on both sides of the tympanic membrane
Nostrils - correct answer-Either of two openings in the nose.
Nasal conchae - correct answer-two bones that help to
complete the nasal cavity by forming the side and lower wall
Olfactory epithelium - correct answer-a thin layer of tissue,
within the nasal cavity, that contains the receptors for smell
Odorants - correct answer-airborne chemicals that are detected
as odors
Olfactory receptor cells - correct answer-the sensors
responsible for smell
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Olfactory cilia - correct answer-hairlike structures located in
upper portion of nasal passages, receptors for smell
Supporting cells - correct answer-cells that insulate, support
and protect neurons
Olfactory basal cells - correct answer-stem cells that replace
olfactory receptors
Olfactory glands - correct answer-secretions coat surfaces of
olfactory organs
Mitral Cells - correct answer-the main projective output neurons
in the olfactory bulbs
Olfactory bulb - correct answer-the first brain structure to pick
up smell information from the nose
UTA BIOL 2457 PRACTICAL 2 2026
ACTUAL QUESTIONS WITH VERIFIED
ANSWERS.
Basilar membrane - correct answer-A structure that runs the
length of the cochlea in the inner ear and holds the auditory
receptors, called hair cells.
Tectorial membrane - correct answer-A membrane located
above the basilar membrane; serves as a shelf against which
the cilia of the auditory hair cells move
Cochlear duct - correct answer-a fluid filled cavity within the
cochlea that vibrates when sound waves strike it
Organ of Corti - correct answer-tissue containing the hair cells
necessary for hearing
Hair cells - correct answer-The hairlike sensory receptors for
sound, which are embedded in the basilar membrane of the
cochlea.
, Page | 2
Vestibule - correct answer-entrance
Utricle - correct answer-the larger of two sacs within the
membranous labyrinth of the vestibule in the inner ear
Saccule - correct answer-A small, fluid-filled sac under the
utricle in the vestibular system that responds to static positions
of the head.
Semicircular canals - correct answer-three canals within the
inner ear that contain specialized receptor cells that generate
nerve impulses with body movement
Semicircular ducts - correct answer-three small membranous
tubes of the vestibular labyrinth within the bony semicircular
canals
Cristae of Ampullares - correct answer-Equilibrium receptors for
rotation at the end of each semicircular canal in the ampulla
, Page | 3
Eustacian tube (pharyngotympanic tube) - correct answer-
allows air to enter the middle ear and helps equalize air
pressure on both sides of the tympanic membrane
Nostrils - correct answer-Either of two openings in the nose.
Nasal conchae - correct answer-two bones that help to
complete the nasal cavity by forming the side and lower wall
Olfactory epithelium - correct answer-a thin layer of tissue,
within the nasal cavity, that contains the receptors for smell
Odorants - correct answer-airborne chemicals that are detected
as odors
Olfactory receptor cells - correct answer-the sensors
responsible for smell
, Page | 4
Olfactory cilia - correct answer-hairlike structures located in
upper portion of nasal passages, receptors for smell
Supporting cells - correct answer-cells that insulate, support
and protect neurons
Olfactory basal cells - correct answer-stem cells that replace
olfactory receptors
Olfactory glands - correct answer-secretions coat surfaces of
olfactory organs
Mitral Cells - correct answer-the main projective output neurons
in the olfactory bulbs
Olfactory bulb - correct answer-the first brain structure to pick
up smell information from the nose
