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