Term
| Which method of studying olfaction used red light and exposes olfactory bulb? |
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Definition
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Term
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Definition
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Term
| In terms of olfaction, a major difference is that humans ____ while other species are _____. |
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Definition
| Microsamatic, macrosomatic |
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Term
| In touch, better accuity comes from... |
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Definition
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Term
| Infants as young as 3-5 months exhibit all except... |
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Definition
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Term
| Mechanoreceptors serve all except... |
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Definition
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Term
| Which papillae don't have taste buds? |
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Definition
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Term
| Mechano receptors closest to the surface are? |
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Definition
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Term
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Definition
Pressure
Slow adapting
Detail
Small Receptor |
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Term
| Olfactory transduction happens in the... |
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Definition
| Olfactory sensory neurons |
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Term
| Sensory, motor, and cognative systems working together is called? |
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Definition
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Term
| Testing visual acuity in infants can be done by? |
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Definition
Preferential looking technique
Habituation
Visual evoked potential |
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Term
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Definition
Somatosensory system- skin
(pain, temp, touch) |
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Term
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Definition
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Term
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Definition
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Term
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Definition
Merkel
Meisner
Ruffini
Pacinian |
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Term
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Definition
Flutter
Rapidly adapting
small receptors
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Term
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Definition
Stretching
Slow Adapting
Large Receptor |
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Term
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Definition
| Single nerve fiber studied under the skin |
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Term
| Slow Adapting Receptors (SA) |
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Definition
Fire for continuous stimulation
Merkel and Ruffini
Pressure and Stretching |
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Term
| Rapid Adapting Receptors (RA) |
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Definition
Burst of Firing at beginning of stimulation
Meisner and Pacinian
Flutter and Vibration |
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Term
What recpetors have small receptive fields?
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Definition
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Term
| Which receptors have large receptive fields? |
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Definition
SA2- Ruffini
RA2- Pacinian |
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Term
| What types of Thermoreceptors do humans have? |
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Definition
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Term
| How do Warm fibers respond to temp change? |
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Definition
Increase in temp, increase in firing
Decrease in temp, decrease in firing
best at 30-48 degrees |
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Term
| How do Cold Fibers respond to temperature? |
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Definition
decrease in temp, increase in response
increase in temp, decrease in response
best at 20-45 degrees |
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Term
| What is two point threshold? |
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Definition
The distance at which a given location on the body can detect two different points touching the skin.
High threshold= low acuity |
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Term
| The larger the recepting field, the ____ acutity. |
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Definition
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Term
| How are acuity and sensitivity related? |
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Definition
| More acute = more sensitive |
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Term
| What is the pathway for somatosenses to the Cortex? |
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Definition
Lemniscal + Spinothalmic
to
Ventral posterior nucleus
to
SI and S2 |
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Term
| How does a Homunuclus represent the body's sensitivity to the Cortex? |
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Definition
| More sensitive parts of the body are represented by larger region on cortex |
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Term
| How is direction and orientation detected by the skin? |
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Definition
| Excitatory and inhibitory cells |
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Term
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Definition
| Subject receives stimulation from someone else |
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Term
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Definition
| Person controls touch stimulation |
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Term
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Definition
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Term
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Definition
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Term
| Are humans macrosomatic or microsomatic? |
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Definition
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Term
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Definition
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Term
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Definition
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Term
How is olfactory detection threshold measured?
How good are humans? |
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Definition
Concentration of odor for detection
Humans can detect very small amount |
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Term
Are humans good at olfactory identification?
Why? |
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Definition
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Term
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Definition
| Dime sized region of receptors |
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Term
| Where does olfactory transduction occure? |
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Definition
Olfactory receptor Neurons
ORN |
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Term
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Definition
| synaps with ORN axons in Olfactory Bulb |
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Term
| Where does the olfactory system message go after the glomeruli? |
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Definition
Piriform Cortex
Orbitofrontal Cortes
Amygdala(Emotion) |
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Term
| How do humans detect different odors? |
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Definition
Pattern of responses in ORN and Glomeruli
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Term
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Definition
| Odors with Smiliar pattern |
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Term
| What are the 4 types of Papillae? |
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Definition
Filiform
Fungiform
Foliate
Circumvallate |
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Term
| Where does taste transduction occure? |
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Definition
| Taste cell receptor cites |
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Term
| What part of the tonge does the chorda tympani nerve and closso pharygeal nerve signal from? |
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Definition
CTN- Front and sides
GPN- Back |
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Term
| What are the five categories of taste? |
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Definition
Salty
Sour
Sweet
Bitter
Umami |
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Term
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Definition
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Term
| How does odor from food reach olfaction? |
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Definition
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