7.13 Flashcards
Glabrous skin
Skin that does
not contain hair; found on the palms and
the soles of the feet.
Merkels disk
A touch-sensitive cutaneous
receptor, important for detection of form
and roughness, especially by fingertips.
Ruffini Corpuscle
A touch-sensitive
cutaneous receptor, important in detecting
stretching or static force against the skin,
important in proprioception.
Meissners corpuscle
A touch-sensitive
cutaneous receptor, important in detecting edge contours or Braille-like stimuli,
especially by fingertips.
Pacinian corpuscle
A vibration-sensitive cutaneous receptor,
important in detecting vibration from an
object being held
Mechanoreceptor
A sensory neuron
that responds to mechanical stimuli: for
example, those that produce pressure,
stretch, or vibration of the skin or stretch
of muscles or tendons.
Umami
The taste sensation produced by glutamate
Chorda tympani
A branch of the facial
nerve that passes beneath the eardrum;
conveys taste information from the anterior part of the tongue and controls the
secretion of some salivary glands.
Nucleus of the solitary tract
A nucleus
of the medulla that receives information
from visceral organs and from the gustatory system.
Olfactory epithelium
The epithelial
tissue of the nasal sinus that covers the
cribriform plate; contains the cilia of the
olfactory receptors
Olfactory bulb
The protrusion at the end
of the olfactory tract; receives input from
the olfactory receptors.
Mitral cell
A neuron located in the olfactory bulb that receives information from olfactory receptors; axons of mitral cells bring information to the rest of the brain.
Olfactory glomerulus
A bundle of dendrites of mitral cells
and the associated terminal buttons of the
axons of olfactory receptors
