Chapter 10 Flashcards
(41 cards)
What detect changes in the environment and stimulate neurons to send nerve impulses to the CNS for processing?
sensory receptors
What senses are widely distributed and structurally simple, touch pressure, temperature and pain?
general senses
What senses have complex specialized sensory organs in the head, vision, hearing, smell, taste, balance?
special senses
What are the types of general receptors?
chemoreceptors, pain, thermoreceptors, mechanoreceptors, and photoreceptors
Receptors sensitive to changes in chemical concentration
chemoreceptors
receptors that detect tissue damage
pain
responds to temperature differences
thermoreceptors
responds to changes in pressure or movement
mechanoreceptors
respond to light; found in the eye
photoreceptors
Senses of body position, location in space, are associated with skeletal muscles
proprioception
what are receptors for?
touch
pressure senses, sense
deformation or displacement of tissues
These consist of free nerve endings that are stimulated when tissues are damaged
pain receptors
Masses of epithelium in roof of the nasal cavity contain olfactory receptros
olfactory organs
smell receptors are chemoreceptors, inhaled odorants stimulate particular groups of olfactory receptors, to provide discrimination of smell receptors
olfactory receptors
spherical organs of taste, each contain 50-100 taste cellls
taste buds
functions as chemoreceptors, replaced every 10 days
taste cells (gustatory cells)
List the 5 types of taste cells
sweet, sour, salty, bitter, and umami (delicious and savory)
What are the 3 portions of the external ear?
auricle (pinna), external acoustic meatus (external auditory canal), tympanic membrane (eardrum)
What collect sounds?
auricle (pinna)
what is a s shaped tube that transports sound toward the ear drum?
external acoustic meatus
this lies at the end of the external acoustic meatus and vibrates sound waves
tympanic membrane
The middle ear houses 3 tiny bones called
auditory ossicles: malleus, incus, and stapes
what are the two types of sense of equilibrium
static and dynamic