chp16

nerve signals arriving at the superior olivary nucleus are involved in which of the following functions?

* localize the sound *decrease the vibration of the sound *turn our head toward the sound

what is the functions of the inner ear?

*balance *hearing

iris

*colored part o the eye composed of two layers smooth muscle: melanocytes vascular nervous structure *ciliary body

vascular tunic

*contain blood and lymph vessels

sclera

*dense irregular connective tissue *provides for eye shape

papillae

*filiform *fungiform *vallate *foliate

each macula of the utricle and saccule is composed of which of the following?

*hair cells *supporting cells

conjunctiva

*it doesn't cover the cornea *it is vascular *it contains goblet cells

optic tracts extend to which of the following after they leave the optic chiasm?

*lateral geniculate nucleus of the thalamus *superior colliculi

bright light adaptation

*pupils constrict *rods become inactive *cones gradually adjust

somatic nociceptors

*sprained ankle *exposure to acid on the skin *touching a hot pan

the utricle and saccule are involved in which of the following functions involving position of the head?

*static equilibrium *linear acceleration

what are you basic taste sensations

*umami *sour *sweet

what structure focuses incoming light onto the retina?

Lens

the tympanic cavity is filled with?

air

the semicircular ducts are involved in detecting ____ acceleration.

angular

what chamber is between the iris and cornea?

anterior chamber

the lamina propria is made of____ tissue.

areolar connective tissue

mechanoreceptors found?

baroreceotir proprioceptors tactile *ear *hair *skin

Taste buds are made of gustatory cells,supporting cells and _____cells

basal cells

what substance produced in the external ear impedes microorganism growth?

cerumen

_____ are receptors that detect chemicals

chemoreceptors

gustatory cells are:

chemoreceptors

what structure is filled with pigment from melanocytes?

choroid

what is snail shaped in the ear?

cochlea

the cochlea has three fluid-filled ducts

cochlear duct scala tympani

as we adjust to low light, our ____ become nonfictional and it may take ____ for rhodopsin to become regenerated sufficiently that you can see well in low-light conditions

cones 20-30 min

the sphincter pupillae ___ the pupil.

constricts

when light hits the eye, the pupil ____ in bright light or ___ in dim light

constricts dilate

a ____ shaped lens is used to treat hyperopia and a _____ shaped lens is used to treat myopia

convex concave

what is the fibrous tunic made up of?

cornea sclera

free nerve endings are terminal branches of:

dendrits

the auricle has ___ cartilage that supports its structure

elastic

the auricle has _____ cartilage that supports its structure

elastic

examples of encapsulated receptors

end bulbs krause bulbs

the auricle directs sound waves into the bony tube called the ______ _____ _____.

external acoustic meatus

what type of receptor is found in the mucous membranes?

exteroceptor

the primary function of the ___is to prevent large objects from contacting the eye

eyelaches

the eye is spherical measuring about 5 centimeters in diameter and most of it is receded into the orbital of the skull. true or false

false

In a taste bud the basal cells replace the ___ cells

gustatory

the term, equilibrium refers to out awareness and monitoring of our ____ positions

head

endolymph has a ___ potassium concentration.

high

the vitreous body is also called the vitreous____.

humor

when the photoreceptors stop ____ the bipolar cells, the bipolar cells can then release their neurotransmitter that binds to receptors on the ganglion cells.

inhibiting

specific type of receptors called ____ detect stimuli in he internal organs

interoceptors

what structure is the dividing line between the anterior and posterior chambers?

iris

what causes conjunctivitis?

irritants

where are tears created?

lacrimal apparatus

macular degeneration occurs when the ___ degenerates.

macula lutea

the stimulating agent is also called the ____of stimulus

modality

gustatory cells within the taste buds are a specialized type of epithelial cell called ___ cells

neuroepithelial

when use the sense of ___ to sample our environment for information about the food we will eat the presence of other individuals in the room, or potential danger.

olfaction

olfactory hairs house receptor proteins for detecting ___ specific odorant molecules

one

"blind spot "

optic disc

the lacrimal gland has a superior or ____ part and an inferior or ____ part.

orbital palpebral

a detached retina is caused by a separation between which two layers

outer pigmented and the inner neural layers of the retina separate

the eyelids are also called

palpebrae

the eyelids are joined at the medial and lateral___ commissure or _______

palpebral canthi

the portion of the conjunctiva on the inside of the eyelid is called the :

palpebral conjunctiva

the external ear is located mostly on the outside of the body, and the middle and inner ear areas are housed within the _____ part of the temporal bone.

petrous

the external lear is located mostly on the outside of the outside of the body, and the middle and inner ear areas are housed within the _____ part of the temporal bone

petrous

if stimulated over a period of time, ______ receptors lose sensitivity over time.

phasic

the most visible part of the external ear is the ___ or ____

pinna auricle

structure contain exteroceptors

skin oral cavity

cataracts are a disorder of the ?

small opacities with in the lens

which auditory ossicle contacts the oval window?

stapes

tactile cells associated with tactile discs are located in the :

stratum basale

where is the lacrimal gland located

superior and lateral to the eye

from the optic chiasm, optic tracts extend to the ____ ____ to coordinate reflexive movements.

superior colliculus

the _____ ligaments connect the ciliary body to the lens.

suspensory

the most numerous receptor

tactile receptor

gustation is the sense of _______

taste

what muscles are located in the middle of the ear?

tensor tympani stapedius

a feature common to all receptors is____.

the ability to respond to a stimulus

somatics receptor are found within:

the body wall

ossicles in order:

think M.I.S Malleus Incus Stapes

neurons i the olfactory bulb travel through the olfactory ___ to the brain

tracts

transducers:

transform energy from one form to another form

vestibular complex

utricle saccule semicircular

what type of papillae is largest and least numerous

vallate

the roof of the cochlear duct is formed by the ___ membrane.

vestibular

hearing and our sense of balance comes form the stimulation of which cranial nerve?

vestibulocochlear

olfactory hair

*they are unmyelinated *they are immobile

sensory receptors in which of the following structures help monitor and adjust our equilibrium?

*utricle *saccule *semicirular ducts

in the light, ____ cell no longer inhibited and therefore release the neurotransmitter ____.

bipolar glutamate

receptors for general senses are distributed throughout the ____ and viscera

body

aqueous humor is secreted into the _____ chamber before traveling to the _____ chamber of the eye.

posterior anterior

what is the margin between the photosensitive and non photosensitive region of the retina called?

pra serrata

what type of receptor monitor monitors changes in position?

proprioception

what type of receptors make you aware of your body positioning

proprioceptors

as tears drain, through the lacrimal caruncle, they enter small holes called the lacrimal_____

puncta

the external acoustic meatus terminates at the _____ ______ most commonly called ____

tympanic membrane eardrum

in the eye the ____ humor is gelatinous.

vitreous

what color is the macula lutea?

yellow

the apparent distortion of the spoon in the water glass is due to the phenomenon called____.

refractive index

root hair plexuses are usually found in the:

reticular layer of the dermis

the are that a receptor cell gathers information from is called the :

receptive field

what structures contain exteroceptors?

receptors within skin or mucous membranes receptors for smell taste(oral cavity) vision hearing equilibrum

the lens is ____ when we are viewing close-up objects

round