L8 Neurobiology of sensing
11 important questions on L8 Neurobiology of sensing
In which two types can sensory receptors cells be broadly classified?
What do type I sensory receptors do?
What do type II sensory receptors do?
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What is NOT a structure in the middle ear?
- Stapes
- Incus
- Tympanus
- Maleus
Tympanus
Structures of middle ear are:
- Stapes
- Incus
- Maleus
Fill in the blank:
......... And ........... Operate similarly as both require ionic exchange across the receptor membrane triggered by force.
Audition and mechanosensation
proprioception and tactile sensing
proprioception and audition
the above all possible
ezelsbruggetje: MAg AT PoT PA
Which of the following is not a neocortical region that processes sensory information?
- Primary somatosensory cortex
- secondary somatosensory cortex
- primary visual cortex
- primary auditory cortex
- olfactory bulb
Olfactory bulb
Neocortical region that does process sensory information:
- Primary somatosensory cortex
- secondary somatosensory cortex
- primary visual cortex
- primary auditory cortex
fill in the blanks:Projections from sensory periphery targeting the central nervous system is lateralised. Decusation of projections along the ________ pathway happens in the brain stem, and along the ________ pathway in the thalamus.
- olfactory / auditory
- somatosensory / visual
- olfactory / somatosensory
- auditory / visual
- somatosensory / auditory
auditory / visual
Dus:
Somatosensory & Auditory -> brainstem
Visual -> thalamus
Sensory organs contain sensory receptors and structures that conduct physical stimuli to the receptors.
Sensation starts with sensory transduction, how does this work?
If this physical stimulation results in a change in membrane conductance, and a subsequent change in the membrane potential (generation of a receptor potential), then sensory information is transmitted to the central nervous system in the form of action potentials.
By which kind of physical stimuli can pain receptors (nociceptors) be activated?
- Mechanical
- Chemical (e.g. acidity)
- Thermal
- Inflammation / Injury
- Polymodal (i.e. Combination of factors above)
What is the difference between the two superclasses of sensory receptors?
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