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Flashcards in Other Senses Deck (12)
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1

Olfactory pathway

Nostril ➡️ nasal cavity ➡️ Olfactory nerve ➡️ olfactory bulb ➡️ olfactory tract ➡️ Limbic system (brain area)

2

Pheromones

Chemicals given off by animals that have an effect on social, foraging, and sexual behavior in other members of that species

3

Taste buds

Detects dissolved compounds in papillae (little bumps on tongue)

Sour, sweet, salty, butter, and umami (savory)

4

Somatosensation

Refers to the 4 touch modalities:
Pressure
Vibration
Pain
Temperature

5

Two point threshold

The minimum distance between two points of stimulation on the skin such that the points will be felt as two distinct stimuli

6

Physiological zero

The normal temperature of the skin (between 86 and 97F) to which objects are compared to determine if they feel "warm" or "cold"

7

Nociceptors

Responsible for pain perception

8

Gate theory of pain

States that pain sensation is reduced when other somatosensory signals are present

Special "gating" mechanisms can turn pain signals on or off, affecting whether or not we perceive pain

9

Kinesthetic sense (proprioception)

Refers to the ability to tell where ones body is in three dimensional space

Example: even with your eyes closed, you could still describe the location and position of your hand

10

The only sense that doesn't pass through the thalamus but passes through higher order brain centers ?

Smell

11

Somatosensory cortex is found in which lobe?

Parietal

12

Olfactory chemoreceptors (olfactory nerves)

Detect volatile or aerosolized chemicals