NERVOUS SYSTEM SENSES CONNECT LECTURE
The cochlea has three fluid-filled ducts. Which are the names of these ducts?
-scala tympani -cochlear duct -scala vestibull
Which cranial nerve innervates the posterior 1/3 of the tongue?
CN IX
The term equilibrium refers to our awareness and monitoring of our ______position.
Head
Axons of olfactory cells form fascicles of cranial nerve number ______.
I
Some of the axons from the cochlea project directly to the ________colliculus of the midbrain.
Inferior
The types of the receptor that include only the somatic sensory receptors within joints, muscles, and tendons are called
PROPRIOCEPTORS
Olfactory receptors ______.
Perceives odors
What type of receptor monitors changes in body position?
Proprioception
The black hole in the eye is called the____ and it is surrounded by the colorful _____
Pupil, iris
______occurs when impulses from an organ are perceived as originating from the skin
Referred pain
What are the functions of the auditory ossicles?
To transmit and amplify sound from the outer to inner ear
True or false: Unlike other sensory information, olfactory pathways do not project to the thalamus.
True
A feature common to all receptors is ______.
ability to respond to a stimulus
The tympanic cavity is filled with ______.
air
The semicircular ducts are involved in detecting ______ acceleration.
angular
The iris is continuous with the ______.
ciliary body
The auditory tube is normally ______.
closed
The outmost layer of the eye is called the ______ tunic.
fibrous
The lens is ______ when we are viewing faraway objects.
flattened
Light causes the photoreceptor plasma membranes to ______.
hyperpolarize
Nerve signals arriving at the ______ are relayed to skeletal muscles that cause us to jump and turn our head in response to loud sounds.
inferior colliculi
Tears are created by the _____ apparatus.
lacrimal
The lacrimal apparatus produces, collects, and drains ____ fluid.
lacrimal
Vibration of the tympanic membrane causes
movement of the ossicles
The fat surrounding the eye is called ______ fat.
orbital
Accommodation is controlled by the ______ division of the nervous system.
parasympathetic
The sphincter pupillae is controlled by the ______ division of the nervous system.
parasympathetic
The lens is ______ when we are viewing close-up objects.
rounded
The vestibule contains two structures, the utricle, and
saccule
Olfaction is the sense of __________.
smell
At the optic chiasm, ______ of the axons from each optic nerve cross to the opposite side of the brain.
some
The middle and inner ear are in which bone?
temporal bone
Gustation is the sense of ________
to taste
Neurons in the olfactory bulb travel through the olfactory _____ to the brain ?
tract
The cornea is _____
transparent
Receptors for general senses are distributed throughout the ______ and viscera.
SKIN
Where is the lacrimal gland located?
Superior and lateral to the eye
The external acoustic meatus terminates at the_____ membrane, which is most commonly called the eardrum.
True
Sound waves are funneled into the ear by the ______.
auricle
The most visible part of the external ear is called the ________ or ________
auricle or pinna
Gustatory cells are
chemoreceptors
Receptors that detect chemicals are called
chemoreceptors
The optic disc is associated with ______.
cranial nerve II
What is the name of the elevated region of the ampulla of the semicircular canal?
crista ampullaris
What is the name of the gelatinous dome with embedded stereocilia of the semicircular canal?
cupula
The auricle has______ cartilage that supports its structure.
elastic
The utricle and saccule are involved in functions involving the position of the head?
linear acceleration and static equilibrium
Lacrimal fluid prevents bacterial infection because it contains an antibacterial enzyme called
lysozyme
A lack of photoreceptors in this structure creates the "blind spot"?
optic disc
The external ear is located mostly on the outside of the body, while the middle and inner ear areas are housed within the____ part of the temporal bone.
petrous
Most of the eye is ______ the orbit of the skull.
receded into
Some individuals experience pain in their left shoulder during a heart attack. This is an example of ______
referred pain
Some individuals experience pain in their left shoulder during a heart attack. This is an example of ______.
referred pain
Which structures are part of the vestibular complex?
semicircular ducts, utricle, saccule
Receptors for general senses are usually ______.
simple structure
Which auditory ossicle contacts the oval window?
stapes
Which are the characteristics of the cornea?
transparent and avascular
Stretch receptors in the stomach would be classified as what type?
visceral sensory
In the light, _____cells are no longer inhibited and therefore release the neurotransmitter glutamate.
bipolar
Somatic receptors are found within ______.
body wall
Gustatory cells are found in taste
buds/receptors
Receptors initiate sensory input to the ______.
central nervous system
The sphincter pupillae ______ the pupil.
constricts
Accommodation is the process of making the lens ______.
more spherical
Olfactory hairs house receptor proteins for detecting ______ specific odorant molecule(s).
one
Sensory receptors in which structures help monitor and adjust our equilibrium?
saccule, utricle, and semicircular ducts
What structure is the "white" of the eye?
sclera
Which part of the eye is an attachment site for extrinsic eye muscles?
sclera
When a figure skater does a lengthy spin on the ice, it is the sensory receptors in her _____ canals of the inner ear that are informing her brain about the position of her moving head.
semicircular
Reflexive movements of the head, eyes, and neck are coordinated by the ______.
superior colliculi
Mechanoreceptors located in the skin and mucous membranes are called ______ receptors.
tactile
What is the most numerous type of receptor?
tactile receptors
The fovea centralis lies ______ the macula lutea.
within
What color is the macula lutea?
yellow