Chapter 12 stops at pg 3 Flashcards
What receptor senses the smell of roses?
Chemoreceptors
What receptor is stimulated by changes in the Chemical substances
Chemoreceptors
What recporti sense an infected tooth
Pain
What receptor is stimulated by tissue damage also called nociceptors
Pain
What receptor sense a cool breeze
Thermorecptors
What receptor sense a change in blood pressure
Mechanoreceptor: baroreceptor
What receptor sense mechanical forces such as changes in pressure or movement of fluids
Mechanoreceptors
What receptor senses approaching headlights; responding to light energy
Photoreceptors
What is he ability to ignore unimportant stimuli
Sensory adaptation
What is referred pain
Visceral pain may feel as if it is coming from some part of the body other than the part being stimulated
What’s an example of referred pain
Pain in the heart being referred to left shoulder or left arm
How are the sense of smell and taste functioning together to create the perception of the flavor a of food
Olfactory and fast receptors are sensitive to chemical sensations. They sense function closely together and aid in food selection, bc we smell food at the same time we taste it. It’s difficult to tell whether the sensation is mostly from the smell of a food or the actual taste
What are two olfactory organs
Olfactory receptors and columnar epithelial cells in the nasal mucosa
Why is taste sensation less likely to diminish with age than olfactory sensation
Taste cell reproduce continually and only function for about three days. Damaged olfactory neurons aren’t replaced
Pathway from external acoustic meatus to
In notes
What are the three bones of auditory ossicles
Malleus, incus, and stapes
What do the bones of the auditory ossicles do
Bridge the tympanic membrane and inner ear, transferring vibrations between the parts. Form a lever system that helps increase the force of vibrations as they pass from tympanic membrane to oval window. Transfer vibrations from larger surfaces of tympanic membrane to smaller areas of oval window, so the vibrations strengthen as it travels from outer to inner ear.
True of false: the pressure the staples of the ear applies at the oval window is about 22 times greater than that which sound waves exert on the tympanic membrane
True
What is shaped like a snail coiled around a bony core(modiolus) with a thin bing shelf (spiral lamina) that wraps around the core
Cochlea
What does the shelf of the cochlea do
Divides the bony labyrinth of the cochlea into upper and lower compartments.
What is the upper compartment of the cochlea shelf, what does it do
Scala vestibule; leads from the oval window to the Apex of the spiral
What is the lower compartment of the cochlea shelf; what does it do
Scala tympani; extends from the apex of the cochlea to a membrane covered opening in the wall of the inner ear called the round window
The compartments of the cochlea are filled with what
Perilymph
What is the small opening of the cochlea that connects fluids in the chambers
Apex
What is a portion of the membraneous labyrinth that lies between the 2 bony compartments and is filled with endolymph
Cochlear duct
How does the cochlear duct end
As a closed sac at the apex of the cochlea
