Chapter 16 Practice Questions
When the membrane moves, the on the spiral organ hair cells distort because they are anchored by the tectorial membrane
Blank 1: basilar Blank 2: stereocilia
Tactile receptor
Bulbous corpuscle, Lamellated corpuscle
The auditory sensory axons of the branch of cranial nerve number terminate in the cochlear nucleus within the brainstem.
Cochlear; VIII
Rods and cones face the light coming into the eye.
False
True or false: The eye is spherical, measuring about 5 centimeters in diameter, and most of it is receded into the orbit of the skull.
Fasle - the eye is about 2.5cm
What type of receptors detect deep pressure and vibration?
Lamellated corpuscles
Select all that are functions of accessory eye structures.
Protection from foreign objects Prevent the eye from drying out Provide a protective covering
Which of the following is a true statement regarding photoreceptors? Check all that apply.
Rods are responsible for night vision. Cones are associated with color vision. Cones function in brighter light.
The sense of taste is heavily influenced by the olfactory sense as well.
True
When a receptor potential reaches threshold, an action potential will be produced.
True
Hearing and equilibrium are transmitted along which cranial nerve?
VIII
Why is visceral pain sometimes localized incorrectly?
Visceral sensory neurons travel along the same pathway as many somatic sensory neurons.
Perilymph is located between the
bony and membranous labyrinths
Receptors initiate sensory input to the ______.
central nervous system
Gustatory cells are ______.
chemoreceptors
What is the largest structure of the vascular tunic?
choroid
What structure is filled with pigment from melanocytes?
choroid
Which structure of the eye absorbs light to prevent it from scattering within the eye?
choroid
Which are a part of the fibrous tunic?
cornea and sclera
Light rays are refracted or bent when they pass through two media of different ______.
densities
The external layer of the eyeball is the ______ tunic.
fibrous
The outmost layer of the eye is called the ______ tunic.
fibrous
What structure is the dividing line between the anterior and posterior chambers?
iris
Tactile receptors are a type of
mechanoreceptor
Tactile receptors are a type of ______.
mechanoreceptor
Proprioceptor
muscle spindle, Golgi tendon organ, Joint kinesthetic receptor
The sclera ______.
provides for eye shape is made of dense connective tissue
The iris controls the size of the ______.
pupil
Most of the eye is ______ the orbit of the skull.
receded into
Sensory receptors in which structures help monitor and adjust our equilibrium?
saccule utricle semicircular ducts
What structure makes up the posterior 5/6 of the fibrous tunic?
sclera
Which part of the eye is an attachment site for extrinsic eye muscles?
sclera
Receptors for general senses are usually ______.
simple in structure
Localization and sensitivity are easily determined in a ______ receptive field.
small
The cornea is
transparent
Which layer of the eye contains the blood and lymph vessels?
vascular tunic
Hearing and our sense of balance comes from the stimulation of which cranial nerve?
vestibulocochlear
Which cavity of the eyeball is divided into an anterior and posterior chamber?
anterior cavity
The iris is continuous with the ______.
ciliary body
The limbus is the junction between the sclera and the ______.
cornea
Optic tracts ultimately are directed to the primary visual cortex in the ______ lobe.
occipital
We 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
The fat surrounding the eye is called fat.
orbital
Taste buds are found on the tongue and ______.
soft palate
Gustation is the sense of
to taste
The papillae on the tongue that do not contain any taste buds are the ________ papillae.
filiform
Pain is an example of a ______ sense.
general
Free nerve endings are usually found in the
papillary layer of dermis
Olfactory receptors ______.
perceive odors
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
If stimulated over a period of time, receptors lose eventually sensitivity.
phasic
The area that a receptor cell gathers information from is called the ______.
receptive field
Some individuals experience pain in their left shoulder during a heart attack. This is an example of ______.
referred pain
______ occurs when impulses from an organ are perceived as originating from the skin.
referred pain
The apparent distortion of the spoon in the water glass is due to the phenomenon called .
refraction
Photoreceptors in the retina of the eye detect changes in light intensity and wavelength. In other words, they are detecting
stimuli.
Tactile cells are located in the
stratum basale of the epidermis
Optic tracts extend to which structures after they leave the optic chiasm?
superior colliculi the lateral geniculate nucleus of the thalamus
Mechanoreceptors located in the skin and mucous membranes are called ______ receptors.
tactile
A feature common to all receptors is ______.
the ability to respond to a stimulus
The term equilibrium refers to our awareness and monitoring of our
head position
A part of the auditory pathway responsible for auditory reflexes is the
inferior colliculus.
What type of receptor can undergo adaptation?
phasic
