Anatomy Of Special Senses Flashcards
Olfactory receptors are what type of receptors
Chemoreceptors
Olfactory receptors are located in we’re
Upper nasal cavity
Olfactory organ contains
Olfactory receptors and epithelial supporting cells
Olfactory neurons are what types of neurons
Bipolar neurons
The olfactory receptors cells have cilia that cover the dendrites. True or false
The cilia is for what
True
For trapping in the nasal cavity
Olfactory nerve pathway
When olfactory receptors are stimulated, the fibers synapse with the neurons on the olfactory lobes on the sides of the crista galli. The sensory impulses are analyzed in the olfactory lobe before they travel along the olfactory tract to the limbic system and lastly to the olfactory cortex within the temporal lobes.
Location of taste buds
Papillae of the tongue and scattered within the mouth and pharynx
What type of epithelium is present on the tongue
Stratified squamous
What are the taste cells
Gustatory cells (they are modified epithelial cells that function as receptors).
Function of taste buds
Transduction of chemical stimuli to nervous stimuli
Taste nerve pathway
Taste receptors travel on the facial, Glossopharyngeal and vagus nerve to the medulla oblongata and then to the gustatory cortex of the cerebrum
Nerves involved in taste
Facial nerve (chords tympani, greater petrosal nerve)
Glossopharyngeal
Vagus nerves
Examples of gustatory organs
Tongue
Pharynx, larynx, epiglottis, upper oesophagus, soft palate
What are the four types of taste sensations and where are they found
Sweet receptors: found plentiful near the tip of the tongue.
Sour: lateral edges of the tongue
Salty: too and upper portion of the tongue
Bitter: back of the tongue
