Deck 28: Sense Organs

Question 1

Taste buds are located along the walls of the ______________,which are small visible elevations on the tongue.

A)Tonsils
B)Microvilli
C)Epiglottis
D)Papillae
E)Taste cells

Answer 1

D
Explanation: Many taste buds lie along the walls of the papillae,the small elevations on the tongue that are visible to the unaided eye.

Question 2

Figure:
This figure shows the anatomy of the human eye.What does "a" represent?

A)The cornea
B)The sclera
C)The optic nerve
D)The lens
E)The retina

Answer 2

B
Explanation: "a" represents the sclera.See Figure 28.3A.

Question 3

Sensation occurs in the individual receptor which receives the stimulus.

Answer 3

False
Explanation: In complex animals,sensory receptors in the peripheral nervous system (PNS)send information to the brain and spinal cord of the central nervous system (CNS),which integrates sensory input before directing a motor response.Sensory receptors transform the stimulus into nerve impulses that reach the cerebral cortex of the brain.When nerve impulses arrive at the cerebral cortex,sensation,which is the conscious perception of stimuli,occurs.

Question 4

Figure:
This figure shows the anatomy of the human eye.What does "b" represent?

A)The lens
B)The sclera
C)The cornea
D)The optic nerve
E)The retina

Question 5

Which of the following receptors are located in the hypothalamus and the skin?

A)Thermoreceptors
B)Electromagnetic receptors
C)Nociceptors
D)Chemoreceptors
E)Mechanoreceptors

Question 6

Figure:
This figure shows the anatomy of the human eye.What does "d" represent?

A)The cornea
B)The sclera
C)The optic nerve
D)The lens
E)The retina

Question 7

The white fibrous layer that covers most of the eye is called the:

A)Cornea
B)Iris
C)Sclera
D)Retina
E)Pupil

Question 8

Which of the following receptors uses rods and cones?

A)Chemoreceptors
B)Nociceptors
C)Electromagnetic receptors
D)Thermoreceptors
E)Mechanoreceptors

Question 9

Which of the following structures has a direct connection with the limbic system of the brain?

A)The olfactory cilia
B)The olfactory bulbs
C)The olfactory cells
D)The olfactory microvilli
E)The olfactory epithelium

Question 10

Airborne chemical sex attractants which are passed between members of the same species are called:

A)Choroids
B)Pheromones
C)Statocysts
D)Saccules
E)Scleras

Question 11

If you were studying modified neurons which are responsible for the sense of smell,you would be studying which of the following?

A)Olfactory cells
B)Olfactory buds
C)Olfactory tracts
D)Olfactory bulbs
E)Olfactory microvilli

Question 12

Figure:
This figure shows the anatomy of the human eye.What does "c" represent?

A)The cornea
B)The sclera
C)The optic nerve
D)The lens
E)The retina

Question 13

Which of the following is the correct order of sensation?

A)Sensory receptor detects a stimulus - nerve impulse travels along the sensory fibers in the PNS - impulse reaches the cerebral cortex of the CNS
B)Sensory receptor detects a stimulus - nerve impulse travels along the sensory fibers in the PNS - impulse reaches the cerebral cortex of the PNS
C)Sensory receptor detects a stimulus - nerve impulse travels along the sensory fibers in the CNS - impulse reaches the cerebral cortex of the CNS
D)Sensory receptor detects a stimulus - nerve impulse travels along the sensory fibers in the CNS - impulse reaches the spinal cord of the CNS
E)Sensory receptor detects a stimulus - nerve impulse travels along the spinal cord in the CNS - impulse reaches the cerebral cortex of the CNS

Question 14

A biologist is studying a decrease in response to stimuli.Based on this information you would conclude that he or she is studying which of the following?

A)Sensory summation
B)Sensory reception
C)Sensory adaptation
D)Sensory accommodation
E)Sensory interpretation

Question 15

If a person is having trouble walking a straight line and maintaining their balance,which group of receptors are impaired?

A)Chemoreceptors
B)Nociceptors
C)Electromagnetic receptors
D)Prorioreceptors
E)Thermoreceptors

Question 16

If you were studying the response to chemical stimuli,you would be studying which of the following?

A)Thermoreceptors
B)Electromagnetic receptors
C)Nociceptors
D)Chemoreceptors
E)Mechanoreceptors

Question 17

The sensory receptor for hearing would be classified as which of these?

A)A thermoreceptor
B)An electromagnetic receptor
C)A nociceptor
D)A chemoreceptor
E)A mechanoreceptor

Question 18

Which of the following is not one of the primary types of taste?

A)Salty
B)Sweet
C)Bitter
D)Sour
E)Spicy

Question 19

Which statement about the senses of taste and olfaction is incorrect?

A)An odor typically contains only a type single odor molecule that activates one specific type of receptor protein.
B)There are at least four primary types of taste: sweet,sour,salty,and bitter;there may also be a fifth taste,called umami.
C)Taste cells and olfactory cells are chemoreceptors.
D)Each olfactory cell has only 1 out of 1,000 different types of receptor proteins.
E)A taste bud has both supporting cells and a number of elongated taste cells that end in microvilli.

Question 20

Figure:
This figure shows the anatomy of the human eye.What does "e" represent?

A)The optic nerve
B)The sclera
C)The retina
D)The lens
E)The cornea

Question 21

Which structure in the human eye is responsible for controlling the shape of the lens during vision?

A)The ciliary body
B)The sclera
C)The cornea
D)The retina
E)The pupil

Question 22

When we shift our focus from a distant object to one that is closer,what series of events will occur?

A)The ciliary muscle will contract causing the suspensory ligaments to be relaxed causing the lens to become rounded.
B)The ciliary muscle will relax causing the suspensory ligaments to be relaxed causing the lens to become rounded.
C)The ciliary muscle will contract causing the suspensory ligaments to contract causing the lens to become rounded.
D)The ciliary muscle will contract causing the suspensory ligaments to be relaxed causing the lens to become flatteneD.
E)The ciliary muscle will relax causing the suspensory ligaments to contract causing the lens to become rounded.

Question 23

What is the correct order of neuron layers in the retina,starting in the outer layer and moving inward?

A)Choroid - rod and cones - ganglion layer - bipolar cells - optic nerve fibers
B)Choroid - bipolar cells - rod and cones - ganglion layer - optic nerve fibers
C)Optic nerve fibres - choroid - rod and cones - bipolar cells - ganglion layer
D)Choroid - rod and cones - bipolar cells - ganglion layer - optic nerve fibers
E)Choroid - rod and cones - bipolar cells - optic nerve fibers - ganglion layer

Question 24

Figure:
This figure shows the anatomy of the human ear.What does "b" represent?

A)The auditory canal
B)The tympanic membrane
C)The semicircular canals
D)The cochlea
E)The malleus

Question 25

Which of the following functions to bend light rays?

A)Lens and cornea
B)Rods and cones
C)Ciliary body
D)Choroid
E)Iris and pupil

Question 26

Figure:
This figure shows the anatomy of the human ear.What does "a" represent?

A)The auditory canal
B)The semicircular canals
C)The cochlea
D)The tympanic membrane
E)The malleus

Question 27

The transparent layer of connective tissue found in the front of the eye is referred to as the:

A)Sclera
B)Retina
C)Pupil
D)Cornea
E)Choroid

Question 28

If a person was found to have fewer than the normal number of cones in their fovea centralis their vision would most likely be _________.

A)Near sighted
B)Blurred
C)Far sighted
D)Crossed
E)Unaffected

Question 29

If you were studying the structure in the human eye which regulates the size of the pupil as you focus on an object you would be studying the:

A)Cornea
B)Iris
C)Sclera
D)Retina
E)Pupil

Question 30

If you were studying cells which are responsible for seeing in dim light you would be studying which of the following?

A)Bipolar cells
B)Rod cells
C)Ganglion cells
D)Cone cells
E)Choroid cells

Question 31

In typical color blindness,one type of rod is deficient or defective.

Question 32

The specialized region on the retina which has a dense concentration of cone cells is referred to as the:

A)Choroid
B)Ciliary body
C)Fovea centralis
D)Vitreous region
E)Aqueous region

Question 33

Figure:
This figure shows the anatomy of the human ear.What does "e" represent?

A)The auditory canal
B)The semicircular canals
C)The cochlea
D)The tympanic membrane
E)The malleus

Question 34

Why do people need reading glasses as they age?

A)The lens remains rounded
B)
The lens becomes cloudy
C)The lens loses its ability to become rounded
D)There is a build up of pressure behind the lens causing distortion
E)The suspensory ligaments deteriorate and are unable to bend the lens

Question 35

Figure:
This figure shows the anatomy of the human ear.What does "c" represent?

A)The semicircular canals
B)The malleus
C)The cochlea
D)The tympanic membrane
E)The auditory canal

Question 36

The correct order in which a light ray enters the eye is:

A)Cornea,vitreous humor,lens,aqueous humor,retina
B)Lens,vitreous humor,cornea,aqueous humor,retina
C)Lens,cornea,aqueous humor,vitreous humor,retina
D)Cornea,aqueous humor,lens,vitreous humor,retina
E)Lens,aqueous humor,cornea,vitreous humor,retina

Question 37

What is the correct order of layers in the retina,starting at the very back of the eyeball?

A)Rod and cone layer,choroid layer,ganglion layer,bipolar layer
B)Choroid layer,ganglion layer,bipolar layer,rod and cone layer
C)Choroid layer,rod and cone layer,bipolar layer,ganglion layer
D)Rod and cone layer,bipolar layer,choroid layer,ganglion layer
E)Bipolar layer,ganglion layer,rod and cone layer,choroid layer

Question 38

A biologist is studying the part of the human eye which contains the photoreceptors and receives the image the person is looking at.Based on this information you would conclude that he or she is studying the:

A)Sclera
B)Cornea
C)Choroid
D)Ciliary body
E)Retina

Question 39

Color vision depends on three types of cones that contain pigments sensitive to either:

A)Red,green,or blue
B)Red,green,or orange
C)Red,yellow,or blue
D)Red,white,or blue
E)Green,blue,or yellow

Question 40

Which of the following is not true about cones?

A)They detect the color of an object.
B)They detect the detail of an object.
C)They require high intensity light.
D)They are found in the retina.
E)They are absent from the fovea centralis.

Question 41

Which of the following is not part of the middle ear?

A)The cochlea
B)The incus
C)The auditory tube
D)The malleus
E)The stapes

Question 42

If you were studying the part of the human ear which converts sound energy into nerve impulses you would be studying:

A)The vestibular nerve
B)The semicircular canals
C)The auditory ossicles
D)The tympanic membrane
E)The cochlea

Question 43

If a person is having difficulty detecting different frequencies of sound waves or pitch,they may have damage to their _________.

A)Organ of Corti
B)Stapes
C)Ampulla
D)Utricle
E)Saccule

Question 44

During gravitational balance the utricle and ampulla detect movement of the head in the vertical or horizontal planes.

Question 45

The organ of Corti consists of the:

A)Hammer,anvil,and stirrup
B)Eardrum,round window,and oval window
C)Hair cells and tectorial membrane
D)Saccule,utricle,and cochlea
E)Cochlea and auditory nerve

Question 46

Which of the following is not part of the inner ear?

A)The semicircular canals
B)The cochlear nerve
C)The cochlea
D)The stapes
E)The vestibular nerve

Question 47

Motion sickness occurs when:

A)The brain experiences conflicting sensory inputs from the eyes and cochlea
B)The brain experiences conflicting sensory inputs from the eyes and semicircular canals
C)The brain experiences conflicting sensory inputs from the cochlea and semicircular canals
D)The brain experiences conflicting sensory inputs from the vestibule and cochlea
E)The brain experiences conflicting sensory inputs from the vestibule and semicircular canals

Question 48

A biologist is studying deafness which results from sterocilia being damaged due to loud noises.Based on this information you would conclude that he or she is studying which of the following?

A)Damage to the ossicles
B)Damage to the nerves
C)Damage to the tympanic membrane
D)The inability for sound conduction to occur through the inner ear bones
E)Damage to the semicircular canals

Question 49

If you were studying the part of the ear which is responsible for balance you would be studying which of the following?

A)The cochlea
B)The auditory ossicles
C)The semicircular canals
D)The malleus
E)The cochlear nerve

Question 50

If the tympanic membrane is damaged it will not be able to conduct sound waves to the malleus thus resulting in a loss of hearing.

Question 51

The hair cells within the organ of Corti take information to the brain via:

A)The cochlear nerve
B)The tectorial nerve
C)The vestibular nerve
D)The tympanic nerve
E)The semicircular nerve

Question 52

Which are the mechanoreceptors that tell us the position of our body parts?

A)Proprioceptors
B)Rods
C)Cones
D)Hair cells
E)Stereocilia

Question 53

Which of the following is the layer of the skin that contains the receptors which make the skin sensitive to touch,pressure,pain,and temperature?

A)Epidermis
B)Hypodermis
C)Sclera
D)Dermis
E)Conjunctiva

Question 54

Which structure divides the outer ear from the middle ear?

A)The pinna
B)The malleus
C)The round window
D)The auditory tube
E)The tympanic membrane

Question 55

Which of the following structure is not directly associated with proprioception?

A)Golgi tendon organs
B)Muscle spindles
C)Dermis
D)Tendons
E)Muscle fibers

Question 56

The receptors for rotational balance are located in the ___________ of the semicircular canals.

A)Cochlea
B)Vestibule
C)Utricle
D)Saccule
E)Ampulla

Question 57

Rotational balance is achieved when _________________________________________.

A)Fluid within a semicircular canal flows over and displaces a cupula causing the stereocilia of the hair cells to bend.
B)Fluid within a semicircular canal flows over and displaces a cupula causing the stereocilia of the hair cells to break off.
C)Fluid within inner ear pushes against the tympanic membrane displacing a cupula causing the stereocilia of the hair cells to bend.
D)Fluid within a semicircular canal flows over and displaces a cupula causing the stereocilia of the hair cells to twist.
E)Fluid within a semicircular canal flows over and displaces the stereocilia of the hair cells causing the cupula to bend.

Question 58

If you were studying the sense of balance in humans you would be studying which of the following?

A)The cochlea
B)The middle ear
C)The ossicles
D)The vestibule
E)The tympanic membrane

Question 59

Which of the following receptors is responsible for gravitational balance which detects vertical or horizontal movements of the head?

A)Cochlea and ampullae
B)Ampullae and utricle
C)Utricle and saccule
D)Cochlea and saccule
E)Vestibule and cochlea

Question 60

The bones of the ear:

A)Respond to changes in the position of the head
B)Transmit sound waves
C)Are directly connected to the auditory nerve
D)Are named the malleus,incus,and otolith
E)Are connected to the tectorial membrane and oval window

Question 61

One of the more frequent causes of blindness,that can be repaired,is damage to the ________.

A)Cornea
B)Iris
C)Choroid
D)Conjunctiva
E)Retina

Question 62

If the rods are over stimulated,what happens to an individuals vision?

A)It results in blurred vision.
B)It results in better than 20 / 20 vision.
C)The individual will lose their vision for a short period of time.
D)The individual will become permanently blinD.
E)Nothing at all will happen to the individuals vision.

Question 63

Why does a person lose the ability to taste when they have burned their tongue on hot coffee?

A)They have damaged the papillae which house the taste buds.
B)They have damaged the nerves that conduct the sensation of taste to the brain.
C)They have damaged the olfactory bulb that is associated with taste.
D)The olfactory tract has been severed due to the hot liquid preventing the transmission of the impulse to the brain.
E)They have damaged the ciliary body which houses the receptors for tastE.

Question 64

Hearing loss can occur due to a lifetime of exposing oneself to loud noises.What is the best clinical explanation for hearing loss in an individual who worked in road construction for their entire career?

A)Loud noises cause the fluid within the vestibular canal to exert more pressure and the basilar membrane to vibrate to a greater extent.This can lead to damage of the stereociliA.
B)Loud noises cause the fluid within the vestibular canal to exert less pressure on the basilar membrane which causes it to vibrate to a lesser extent.This can lead to damage of the stereocilia.
C)Loud noises cause the fluid within the vestibular canal to exert more pressure and the cochlear nerve to vibrate to a greater extent.This can lead to damage of the stereocilia.
D)Loud noises cause the fluid within the vestibular canal to exert more pressure on the cochlear nerve.
E)Loud noises cause the fluid within the vestibular canal to exert more pressure and the basilar membrane to vibrate to a greater extent.This can lead to damage of the tympanic membranE.