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The senses , nervous system
cranial nerves , and sense organs
44
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12th Grade
03/06/2017

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Term
Receptors associated with the skin, muscles, joints , and viscera make up the ?
Definition
Somatic Sense.
Term
Free nerve endings
Definition
These receptors are common in epithelial tissues , free ends branch and extend b/w epithelial cells. responsible for itching sensation.
Term
Tactile (Meissner's) corpuscles
Definition
Small oval masses, abundant in hairless areas of the skin, and respond to light touch sensation.
Term
Lamellated (pacinian) corpuscles
Definition
relatively large structures , composed of connective tissue fibers and cells therefore is found in the deepr dermal and subcutaneous tissue. Respond to heavy pressure associated with sensation of deep pressure.
Term
Free nerve endings , Tactile corpuscles(Meissners), Lamellated corpuscles ( pacinian)
Definition
Three types of touch and pressure sense.
Term
Warm receptors and Cold receptors
Definition
Temperature sensation depends on two types of free nerve endings in the skin.
Term
sensitive to temperatures 25 C or 77 F
Definition
when are warm receptors most sensitive
Term
sensitive to temperatures 25 C or 77 F
Definition
when are warm receptors most sensitive
Term
45 C
Definition
Warm receptors become unresponsive at this temperature and also stimulate pain receptors producing a burning sensation.
Term
10 C/ 50 F  and 20 C / 68F
Definition
Cold receptors are most sensitive between ?
Term
10C
Definition
Temperatures below this stimulate pain receptors and produce a freezing sensation.
Term
Nervous tissue of the brain
Definition
Area that Lacks pain receptors
Term
Hypoxia
Definition
deficiency of oxygen rich blood
Term
ischemia
Definition
disruption of blood flow
Term
ischemia
Definition
disruption of blood flow
Term
Referred pain
Definition
Visceral pain may feel as if it is coming form a part of the body other than the part being stimulated.
Term
Pain nerve fibers
Definition
the fibers that conduct impulses away from the pain recpetors
Term
Acute pain fibers
Definition
sharp pain sensation, myelinated.
Term
Chronic pain fibers
Definition
Unmyelinated, conducts impulses slower, and may be diffuse and difficult to pinpoint unlike acute which senses pain coming from the skin this one senses pain from deeper tissues as well .
Term
The cerebral cortex
Definition
determines pain intensity , locates pain source , and mediates emotional and motor responses to the pain.
Term
Enkephalins and endorphins
Definition
Released in response to extreme pain and provide natural pain control.
Term
chemo which means that the chemicals dissolved in liquids stimulate them.
Definition
olfactory and taste receptors are what type of receptors
Term
Olfactory organs
Definition
yellowish brown masses of epi. about the sized of postage stamps that cover the upper parts of the nasal cavity, the superior nasal conchae , and part of the nasal septum.
Term
Chemicals
Definition
Another name for odorant molecules
Term
limbic system
Definition
responsible to for the emotional response to odors.
Term
Olfactory bulbs
Definition
the action potentials and the other olfactory recpetor cells travel to the --- in the brain where the sensation of smell arises.
Term

 

Taste buds

Definition
are the special organs of taste
Term
Taste hairs
Definition
tiny projections protrude from the outer ends of the taste cells and extend from the taste pore. these are the sensitive parts of the receptor cells.
Term
gustatory sensations
Definition
taste sensations
Term
Sweet, Sour , Salty , Bitter , and Umami
Definition
The five primary taste sensations are ?
Term
Taste receptor
Definition
Sensory impulses from cells in the tongue travel on fibers of the facial, glossopharyngeal, and vagus nerves into the medulla oblongata.
Term
Tympanic membrane , the auricle , and the external acoustic meatus.
Definition
3 parts of the outer ear.
Term
The auricle
Definition
helps collect sound waves traveling through the air and directs them into the external acoustic meatus.
Term
The tympanic cavity
Definition
Another word for middle ear.
Term
malleus , incus , and stapes (auditory ossicles)
Definition
3 small bones of the middle ear
Term
malleus
Definition
attaches to the eardrum and vibrates in uniso with the ear drum
Term
malleus
Definition
attaches to the eardrum and vibrates in uniso with the ear drum
Term
stapes
Definition
vibrations of the --- at the oval window moves a fluid in the inner ear , which stimulates the hearing receptors.
Term
Auditory tube/ Eustachian tube.
Definition
connects each middle ear to the back of the nasal cavity or nasopharynx. It also conducts air between the tympanic cavity and the outside of the body by way of the mouth and nose. This tube helps maintain equal air pressure on both sides of the eardrum, which is necessary for normal hearing.
Term
Labyrinth
Definition
Communicating chambers and tubes
Term
osseous and membranous labyrinth
Definition
Each ear has 2 parts of the labyrinth
Term
perilymph
Definition
fluid secreted by cells in  the wall of the bony canal
Term
Semicircular canals
Definition
Part of the labyrinth that provides a sense of equilibrium
Term
Definition
part of the labyrinth that functions in hearing
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