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