Special Senses

Front 1

Olfaction

Back 1

the sense of smell

Front 2

olfactory bulb

Back 2

axons from olfactory neurons form the olfactory nerves, pass through the foramina of the cribriform plate and enter the olfactory bulb, there they synapse with interneurons that relay at pt , to the brains

Front 3

olfactory tracts

Back 3

where the at, pt. form the olfactory bulb travel to the brain, terminates in the olfactory cortex

Front 4

olfactory cortex

Back 4

located within the temporal and frontal lobe, only major sensation that is relayed directly to the brain

Front 5

olfactory neurons

Back 5

bipolar neurons within the olfactory epithelium , which lines the superior part of the nasal cavity

Front 6

taste

Back 6

localized to the oral cavity

Front 7

Papillae

Back 7

enlargements on the surface of the tongue,

Front 8

Taste bud

Back 8

sensory structures that detect taste stimuli

Front 9

taste cells

Back 9

specialized epithelial cells form the exterior supporting capsule of each taste bud and interior consists of about 40 tastes cells

Front 10

taste hairs

Back 10

each taste cell contains hairlike processes , dissolved molecule or ions bind to , initiate action potentials

Front 11

taste pores

Back 11

tiny openings in the stratified epithelium,

Front 12

hearing and balance

Back 12

localized in our ears

Front 13

auricle

Back 13

the fleshy part of the external ear on the outside of the head, collects sound waves and directs them toward the external auditory canal

Front 14

external auditory canal

Back 14

a passageway that leads to the eardrum

Front 15

tympanic membrane

Back 15

is a thin membrane that separates the external ear from the middle ear, thin layer of connective tissue sandwich between two epithelial layers

Front 16

auditory ossicles

Back 16

the three bones of the ear, malleus, incus, stapes, transmites vibrations from the tympanic membrane to oval window,

Front 17

auditory tube

Back 17

opens into the pharynx and enables air pressure to be equalized

Front 18

Cochlea

Back 18

is shaped like a snail shell, contains a bony core shaped like a screw, involved in hearing

Front 19

balance

Back 19

sense of balance, or equilibrium, has two components, static equilibrium, dynamic

Front 20

static equilibrium

Back 20

is associated with the vestibule and is involved in evaluating the position of the head relative to gravity

Front 21

Dynamic equilibrium

Back 21

associated with the semicircular canals and is involved in evaluating changes in the direction and rate of head movements

Front 22

Vestibule

Back 22

inner ear , senses the change in movement in the head

Front 23

semicircular canals

Back 23

involved in dynamic equilibrium, the canals are placed at nearly right angles to one another, enabling a person to detect movements in essentially any direction

Front 24

Vision

Back 24

includes the eye and accessory structures, sensory neurons

Front 25

accessory structures

Back 25

eyebrows, eyelids, conjunctiva, lacrimal apparatus