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Gustation/Olfactory

Sense of taste/smell

QuestionAnswer
What is papillae Visable bumps on tongue
What are the 4 types of Papillae 1. Fungiform 2. Vallate 3. Filiform 4. Folliate
Fungiform Shape Mushroom shaped
Vallate Shape Dome shaped
Filiform Shape Threadlike
How many taste buds do fungiform have ~3
How many taste buds do vallate have ~250
How many taste buds do Filifrom have 0
What type of tissue is the gustatory cells Stratified Squamous Epithelium
What are taste hairs Microvilli that extend into the surrounding fluids through a taste pore
What does a taste pore contain Taste receptors
What cranial nerves does the taste sensory neurons project into VII Facial, IX Glossopharyngeal, X Vagus
What are supporting cells Similar in apprerance to Gustatory cells but no microvilli with sensory receptors
What are basal cells (taste) Stem cells that always divide to replace gustatory cells every 7-10 days
What part of the tongue does the Facial (VII) innervate Anterior 2/3
What part of the tongue does the Glossopharyngeal (lX) innervate Posterior 1/3
What part of the tongue does the Vagus (X) innervate Palate, Pharynx, epiglottis
What are olfactory receptor cells Bipolar neurons with 20 cilia called olfactory hairs
How do olfactory cells regenerate Basal cell division
How long to olfactory cells live 60 days
Where do the axons pass through on olfactory cells The cribiform plate
Created by: Destynelamar