Consist of three kinds of cells

Consist of three kinds of cells - Digestive System Consist...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Digestive System Consist of three kinds of cells * Taste (gustatory) cells * Are epithelial cells , not neurons * Banana shaped and have a tuft of apical microvilli called taste hairs that serve as receptor surface for taste molecules * Hairs project into a pit called a taste pore on the epithelial surface of the tongue * Cells synapse with sensory fibers at their base * Taste is conveyed to the brain through three different nerves (the cranial nerves VII ( N. facialis ), IX ( N. glossopharyngeus ), and X ( N. vagus )). * Glossopalatine * origin, under surface of soft palate; insertion, side of tongue; innervation, pharyngeal plexus of vagus; action, elevates tongue, constricts fauces . * levator veli palatine * origin, apex of petrous portion of temporal bone and cartilaginous part of auditory tube; insertion, aponeurosis of soft palate; innervation, pharyngeal plexus of vagus; action, raises soft palate . *
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 01/30/2012 for the course BSC BSC1085 taught by Professor Sharonsimpson during the Fall '10 term at Broward College.

Page1 / 3

Consist of three kinds of cells - Digestive System Consist...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online