Special Senses TBL Flashcards
Sensory receptors undergo adaptation . This means?
The perception of a sensation is blocked in the peripheral nervous system
The perception of a sensation continues after the stimulus stops
The perception of a sensation fades despite continuing stimulation
The perception of a sensation becomes stronger as the stimulus continues
The perception of a sensation fades despite continuing stimulation
Otoliths are?
Crystalised particles made from dried cerumen
A collective name for bones in the middle ear
Important in balance and proprioception of head position
An acquired cause of conductive hearing loss
Important in balance and proprioception of head position
The shape classification and function of specialised neurons in the retina can be described as
Unipolar and sensory
Tripolar and a mix of both sensory and motor
Multipolar and motor
Bipolar and sensory
Bipolar and sensory
The slow adjustment to a dim lit room after exposure to bright sunlight is explained by
Rods exposed to bright light need time to regenerate rhodopsin
Rhodopsin breaks down slowly
Rhodopsin does not function in dim light
Cones are stimulated by bright lights
Rods exposed to bright light need time to regenerate rhodopsin
Sound is conducted from the middle ear to the inner ear via vibration of the
Malleus against the tympanic membrane
Incus against the round window
Stirrup against the round window
Stapes against the oval window
Stapes against the oval window
Which of the following statemnents doe NOT accurately describe the organ of Corti?
The basilar membrane acts as a resonator
Sensitive hair-like structures of the receptor cells come into contact with tectorial membrane during basal membrane movement
Sounds of a high frequency cause a bending of the basilar membrane closer to the oval window
Sounds of a lower frequency cause a bending of the basilar membrane closer to the round window
Sounds of a lower frequency cause a bending of the basilar membrane closer to the round window
Damage to the olfactory tract would affect the ability to?
Hear
Feel pain
Taste
Balance
Taste
Which of the following is true?
The pupil reflex in bright light involves the contraction of the radial muscles of the iris to constrict the pupil
The pupil reflex in bright light involves the contraction of the radial muscles of the iris to dialate the pupil
The pupil reflex in bright light involves the contraction of the circular muscles of the Iris to constrict the pupil
The pupil reflex in bright light involves the contraction of the circular muscles of the Iris to constrict the pupil
Choose the correct order of structures that conduct vibration from the external auditory canal up to and including the cochlea entrance.
External auditory canal, tympanic membrane, malleus, incus, stapes, oval window
External auditory canal, tympanic membrane, hammer, anvil, stirrup, round window
External auditory canal, the tectorial membrane, malleus, incus, stapes, oval window
External auditory canal, Scala vestibulke, incus, malleus stapes, round window
External auditory canal, tympanic membrane, malleus, incus, stapes, oval window
The hollow structure that allows pressure in the middle ear to be equalised with atmospheric pressure is the
Scala Vestibule
Eustachian tube
Cochlear duct
Scala tympani
Eustachian tube
Which sequence of reactions occur when a person looks at a distant object
Pupils dilate, the ciliary muscle relaxes, and the suspensory ligaments become taut, lens becomes less convex
Pupils dilate, suspensory ligaments become taut, lenses become more convex
Pupils constrict, the ciliary muscles contract suspensory ligaments become floppy, lenses become more complex
Pupils constrict, the ciliary muscles contract and the suspensory ligaments relax, lenses become less convex
Pupils dilate, the ciliary muscle relaxes, and the suspensory ligaments become taut, lens becomes less convex
Taste buds form part of the
Gustatory system
Deglutition system
Olfactory system
Oculomotor system
Gustatory system
The external auditory canal can become blocked and give rise to hearing impairment. Which of the following is NOT related to this type of impairment?
An obstructive foreign body
Congentital atresia
Syndromic hearing deficit
Hyperactivity of ceruminous glands
Syndromic hearing deficit
Glaucoma is related to the impaired…
Vitreous humour production
CSF formation
Aqueous humour drainage
Aqueous humour production
Aqueous humour drainage
