Ch. 16 Nervous System: Senses A&P 207 STLCC Huber

Through which cranial nerve does gustatory nerve information travel?

- CN VII -CN IX

The structures of CN II in order from anterior to posterior

-1. Optic nerve. 2. Optic chiasm 3. tract

Which of the following are types of papillae?

-Filiform -Follate -Vallete -Fungiform

The tympanic cavity is filled with:

Air

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

Basal

Receptors initiate sensory input to the

Central Nervous system

Gustatroy cells are

Chemoreceptors

_____ are receptors that detect chemicals?

Chemoreceptors

What is the name of the "snail-shaped" structure

Cochlea

The junction of the palpebral and ocular conjunctiva is called the

Conjunctival fornix

The auricle has ___cartilage that supports its structure

Elastic

The auricle sound waves into the bony tube called the

External auditory canal

Cutaneous receptors are a type of

Exteroceptors

The primary function of the _____is to prevent large objects from contacting the eye.

Eyelashes

T/F: The eye is spherical measuring about 5 centimeters in diameter and most of it is receded into the orbit of the skull

False

The lens is ____ when we are viewing faraway objects

Flattened

In a taste bud the basal cells replace the ____ cells

Gustatory

The vitreous body is also called the vitreous

Humor

The ____ controls the size or diameter of the ___ and thus the amount of light entering the eye

Iris

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

Iris

Tactile receptors are a type of

Mechanorecptors

A lack of photoreceptors in this structure creates the "Blind spot" ?

Optic disc

The fat surrounding the eye is called___ fat

Orbital

The lacrimal gland has a superior or ____ part and an inferior or ___ part

Orbital / palpebral

Receptors for general senses are distributed throughout the ____and viscera.

Skin

Olfaction is the sense of

Smell

Where is the lacrimal gland located?

Superior and lateral to the eye

The____ ligaments connect the ciliary body to the lens

Suspensory

A feature common to all receptors is

The ability to respond to a stimulus

We have the ability to distinguish one odor among_____ of different ones.

Thousands

Neurons in the olfactory bulb travel through the olfactory ____to the brain.

Tracts

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

Vestibulcochlear

What are correct names for the tube that connects the middle ear to the nasopharynx?

auditory tube, pharyngotympanic tube, eustachian tube

Gustatory cells are found in taste _____________

buds

Receptors initiate sensory input to the ______________

central nervous system

Which receptors detect chemicals?

chemoreceptors

Which terms indicate a receptor type that is classified by its modality of stimulus?

chemoreceptors, mechanoreceptors, thermoreceptors

Write the structures of the eye in order from superficial to deep - photoreceptors, horizontal cells, choroid, bipolar cells

choroid, photoreceptors, horizontal cells, bipolar cells

The iris is continuous with the ______________

ciliary body

The junction of the palpebral and ocular conjunctiva is called the ____________ .

conjunctival fornix

The auricle has ___________________ cartilage that supports its structure

elastic

The auricle directs sound waves into the body tube called the _________________ ___________________ __________________.

external acousitc meatus

Write the three regions of the ear in order from lateral to medial

external ear, middle ear, inner ear

In a taste bud, the basal cells replace the _________ cells?

gustatory

The vitreous body is also called the vitreous ____________________.

humor

Where is the cochlea located?

inner ear

Specific types of receptors called _______________ detect stimuli in the internal organs

interoceptors

Write the structures of the vascular tunic in order from anterior to posterior - ciliary body, choroid, iris

iris, ciliary body, choroid

The suspensory ligaments connect the _____ to the ciliary muscles.

lens

The suspensory ligaments connect the _____________ to the ciliary muscles

lens

Write the auditory ossicles in the order that they occur from lateral to medial - incus, stapes, malleus

malleus, incus, stapes

The fat surrounding the eye is called _______________ _____________.

orbital fat

The eyelids are also called

palpebrae

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

What type of receptor detects changes in light?

photoreceptors

What type of receptors make you aware of your body position?

proprioceptors

The___, the black hole in the eye, is surrounded by the colorful

pupil, iris

Write these structures from superficial to deep - sclera, pigmented layer of retina, choroid, neural layer of retina

sclera, choroid, pigmented layer of retina, neural layer of retina

Which of the following are part of the fibrous tunic? Iris, Sclera, Cornea (type all that apply)

sclera, cornea

Which of the following are part of the fibrous tunic? Sclera, iris, cornea

sclera, cornea

Receptors for general senses are distributed throughout the __________________ and viscera.

skin

What is the most numerous type of receptor?

tactile receptors

Which of the following would stimulate somatic nociceptors? touching a hot pan, sprained ankle, exposure to acid on the skin, oxygen deprivation of tissue

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

Neurons in the olfactory bulb travel through the olfactory ______________ to the brain.

tract

True or false: Unlike other sensory information olfactory pathways do not project to the thalamus

true

The external acoustic meatus terminates at the __________________ __________________ most commonly called the ______________________.

tympanic membrane, eardrum

Which terms indicate a receptor type that is classified by its modality of stimulus

-Chemoreceptors (chemical) -Mechanorecptors ( touch/sound) -Thermoreceptors (Heat)

Which of the following are the functions of the ear?

-Hearing -Equilibrium

What types of receptor detects changes in light?

-Photoreceptors

Which are basic taste sensations?

-Sour -Sweet -Umami

Which of the following would stimulate somatic nocicereptors?

-Sprained ankle -Touching a hot pan -Exposure to acid on the skin

What is the function of the auditory ossicles?

-Transmit sounds waves to inner ear -Amplify sound

Which are true of the cornea?-

-Transparent -Avascular

Hearing and equilibrium are transmitted along which cranial nerve?

-VIII

Which pf the following are part of the fibrous of the fibrous tunic?

-cornea -Sclera

The sclera

-is made of dense connective tissue -provides for eye shape

Structures of the eye in order from superficial to deep

1. Choroid 2.Photoreceptors 3.Horizontal cells 4.Bipolar cells

Auditory ossicles in order

1. Malleus 2. Incus 3. Stapes

Structures of the vascular tunic in order from anterior to posterior.

1.Iris 2.Ciliary body 3.Choroid

Order structures from superficial to deep:

1.Sclera 2.Choroid 3.Pigmented layer of retina 4.Neural layer of retina

Structures in the order that tears travel through them.

1.lacrimal puncta 2. Lacrimal canaliculus 3.Lacrimal sac 4.Nasolarimal duct

The eyelids are also called____

Palpebrae

As tears drain, through the lacrimal canucle, they enter small holes called the lacrimal ____

Puntca

Order the layers of the eye from superficial to deep: retina, fibrous tunic, vascular tunic

fibrous tunic, vascular tunic, retina

Which of the following are types of papillae? Filiform, Foliate, Fungiform, Valliform, Vallate

filiform, foliate, fungiform, vallate

The ________________ controls the size or diameter of the ________________ and thus the amount of light entering the eye

iris, pupil

The sclera (write all that apply) - is made of loose connective tissue, is made of dense connective tissue, provides for eye shape, allows light to enter the eye

is made of dense connective tissue, provides for eye shape

The lacrimal apparatus produces, collects, and drains _________________ fluid.

lacrimal

Order these structures in the order that tears travel through them: Nasolacrimal duct, lacrimal sac, lacrimal canaliculus, lacrimal puncta

lacrimal puncta, lacrimal canaliculus, lacrimal sac, nasolacrimal duct

A lack of photoreceptors in this structure creates the "blind spot"

optic disc

Which events occur during bright light adaptation?

rods become inactive, pupils constrict, cones gradually adjust

The lens is _______________ when we are viewing close-up objects

round

The ___________________ ligaments connect the ciliary body to the lens

suspensory

Which are true of the cornea: Transparent, opaque, avascular, vascular

transparent, avascular

True or false: The primary purpose of the eyebrows is to keep sweat out of the eyes

true

Which taste sensation translates as "delicious flavor" and is perceived as a meaty flavor?

umami

Sensory receptors in which of the following structures help monitor and adjust our equilibrium: utricle, semicircular ducts, saccule, cochlea, tensor tympani, auditory tube

utricle, semicircular ducts, saccule

Is the conjunctiva vascular or avascular

vascular

Which layer of the eye contains the blood and lymph vessels?

vascular tunic

Which region of the eye contains the cililary body?

vascular tunic