Ch.8 Special Senses {HW and quiz}
Hearing and Transmission of Sound
1) Tympanic Membrane 2) Malleus 3) Incus 4) Stapes 5) Oval Window 6) Cochlea 7) Organ of Corti
The vibration of sound waves cause the tympanic membrane, or eardrum, to move against an ossicle known as ________.
?malleus or hammer?
Select the pathway along which images received by the retina of the eye will travel into the brain ________.
?optic nerve, optic chiasma, optic tracts, thalamus, optic radiation, occipital lobe?
The fusion of ear bones is known as ________.
?otosclerosis?
Our sense of static equilibrium is created by the ________.
?stimulation of hair cells in the spiral organ of Corti
Dynamic equilibrium receptors that detect information about angular or rotational movements of the head are housed in the ________
?vestibule?
"Dynamic equilibrium is detected by the ___."
Crista Ampullaris
Dynamic Equilibrium
*Dynamic equilibrium monitors angular or rotational movements of the head when the body is moving. *An example of dynamic equilibrium occurs when a figure skater spins.
Static Equilibrium
*Static equilibrium monitors head position when the body is not moving. *An example of static equilibrium occurs when nodding one's head "yes."
Which of the following is a sex-linked condition that more often affects males?
color blindess
Which of the following structures refract light before it hits the retina? a) cornea and lens only b) lens only c) cornea, humors, and lens d) pupil
cornea, humors, and lens
"The bending of dynamic equilibrium receptors is caused by the ______."
cupula
Which of these can cause sensorineural deafness? a) otitis media b) rupture of the eardrum c) otosclerosis d) degeneration of the hair cells in the spiral organ of Corti
degeneration of the hair cells in the spiral organ of Corti
The three cranial nerves that carry taste sensations to the brain are ________.
facial, glossopharyngeal, vagus
What condition results from an abnormally high pressure inside the eye? a) glaucoma b) cataract c) presbyopia d) myopia
glaucoma
"Hearing receptors are called_____"
hair cells
"Sound waves cause the ____ to vibrate first."
hair cells
Loss of the same side of the visual field of both eyes from damage to the visual cortex on one side only is called ________.
hemianopia
What is a possible cause of conduction deafness? a) loss of hair cells b) inability of auditory ossicles to vibrate c) damage to the semicircular ducts d) damage to the auditory cortex of the brain
inability of auditory ossicles to vibrate
The pigmented portion of the eye that has a rounded opening through which light passes is the ________.
iris
The pupil is an opening within the ________.
iris
What gland releases tears onto the anterior surface of the eyeball?
lacrimal
Which of these structures is part of the system that produces and drains tears? a) conjunctiva b) tarsal gland c) lacrimal gland d) palpebrae
lacrimal gland
Which of the external eye muscles is controlled by cranial nerve VI (abducens)?
lateral rectus
"Static equilibrium is detected by _____."
maculae
Which of the following is the auditory ossicle that attaches to the tympanic membrane? a) incus (anvil) b) cochlea c) malleus (hammer) d) stapes (stirrup)
malleus (hammer)
Which of the following stimulates the hair cells found within the spiral organ of Corti? a) b) c) d)
movement of the tectorial membrane
Which of these is associated with rods? a) night vision b) color vision c) visual acuity d) fovea centralis
night vision
Where do the axons of ganglion cells leave the eyeball? a) fovea centralis b) ciliary body c) cornea d) optic disc
optic disc
"The bending of static equilibrium receptors is caused by ______"
otoliths
The innermost sensory layer of the eye that contains bipolar cells and ganglion cells is the ________.
retina
Which of these is part of the sensory layer of the eye? a) vitreous humor b) choroid c) retina d) ciliary body
retina
"Dynamic equilibrium receptors are located in the ____"
semicircular canals
What part of the inner ear is contains receptors for dynamic equilibrium? a) maculae b) semicircular canals c) vestibule d) otoliths
semicircular canals
What is umami? a) sense of taste elicited by the amino acid glutamate b) a type of papilla containing taste buds c) loss of sense of smell d) loss of equilibrium
sense of taste elicited by the amino acid glutamate
"Crossed eyes" resulting from unequal control of the external eye muscles is called ________.
strabismus
The five taste sensations are ________.
sweet, sour, bitter, salty, umami
The external acoustic meatus (auditory canal) is a narrow chamber situated in the ________ bone.
temporal
Where are olfactory receptors located? a) the superior region of the nasal cavity b) the paranasal sinuses c) papillae d) olfactory bulbs
the superior region of the nasal cavity
"Static equilibrium receptors are located in the ______."
vestibule
The only special sense that is NOT fully functional at birth is ________.
vision
Hearing and Equilibrium
Inner ear
Hearing
Outer and Middle ear
What term refers to the ability to focus on close objects? a) accommodation b) emmetropia c) astigmatism d) refraction
accommodation
"As a result of this vibration, ______ is/ are bent."
basilar membrane
"Hearing receptors are connected to the _____ by supporting cells."
basilar membrane
________ deafness arises when there is damage or degeneration of receptor cells in the spiral organ of Corti, cochlear nerve, or neurons in the auditory cortex of the brain.
Sensorineural
"The structure that bends the hearing receptors but does not vibrate itself is____?"
Tectorial Membrane
How do organs of equilibrium help us maintain our balance?
The macula sends information on head position and the crista ampullaris sends information on rotation movements to the cerebellum for integration.