Deck 9 (MC): The Senses

Question 1

The part of a sensory pathway that consists of white matter in the spinal cord or brain is the:

A)receptor
B)sensory neuron
C)sensory tract
D)sensory area

Answer 1

C

Question 2

The chemoreceptors for the sense of smell detect:

A)chemicals dissolved in saliva
B)chemicals dissolved in blood plasma
C)vaporized chemicals in the nasal cavities
D)vaporized chemicals outside the body

Answer 2

C

Question 3

Which statement is NOT true of receptors?

A)We have receptors to detect both external and internal changes.
B)Receptors generate impulses that are carried by motor neurons.
C)A receptor is specific for the type of change it will detect.
D)The change detected by a receptor may also be called a stimulus.

Answer 3

B

Question 4

The receptors for muscle sense are called ___,and are found in ___.

A)proprioceptors/skin
B)stretch receptors/muscles
C)proprioceptors/brain
D)stretch receptors/brain

Question 5

The part of a sensory pathway that carries impulses to the central nervous system is the:

A)receptor
B)sensory neuron
C)sensory tract
D)sensory area

Question 6

The function of sensory receptors is to:

A)carry sensory impulses to the brain
B)feel sensations and determine their intensity
C)project sensations and initiate responses
D)detect changes and generate impulses

Question 7

The cutaneous receptors for pain and itch are called ___,and are found mainly in the ___.

A)free nerve endings/dermis
B)free nerve endings/epidermis
C)encapsulated nerve endings/dermis
D)encapsulated nerve endings/epidermis

Question 8

Proprioceptors are the receptors for:

A)muscle sense
B)cutaneous pressure
C)equilibrium
D)cutaneous heat and cold

Question 9

Which statement is NOT true of a sensory pathway?

A)Sensory tracts are the nerves in the limbs.
B)Sensory neurons are part of peripheral nerves.
C)Receptors generate electrical impulses.
D)Sensory areas are located in the brain.

Question 10

The cutaneous receptors for touch and pressure are called ___,and are found mainly in the ___.

A)free nerve endings/dermis
B)free nerve endings/epidermis
C)encapsulated nerve endings/dermis
D)encapsulated nerve endings/epidermis

Question 11

Muscle sense is important for:

A)coordination
B)simple activities such as walking
C)both A and B
D)both A and B,and for good muscle tone

Question 12

Which statement is NOT true of the cutaneous senses?

A)The fewer receptors in an area of skin,the more sensitive the area is.
B)The receptors for heat are free nerve endings.
C)Cutaneous senses provide information about the environment.
D)Any intense stimulus may be felt as pain.

Question 13

The part of a sensory pathway that feels and interprets the sensation is the:

A)receptor
B)sensory neuron
C)sensory tract
D)sensory area

Question 14

The sensory areas for cutaneous sensations are located in the ___ of the brain.

A)frontal lobes
B)parietal lobes
C)temporal lobes
D)occipital lobes

Question 15

The part of a sensory pathway that detects a change is the:

A)receptor
B)sensory neuron
C)sensory tract
D)sensory area

Question 16

Which cutaneous receptor is NOT paired with its proper stimulus?

A)free nerve ending - pain
B)Meissner's corpuscle - touch
C)free nerve ending - heat
D)Pacinian corpuscle - cold

Question 17

Which statement is NOT true of muscle sense?

A)The receptors may be called proprioceptors.
B)We do not have to see our muscles to know where they are.
C)Unconscious muscle sense is integrated by the cerebellum.
D)Conscious muscle sense is felt by the frontal lobes of the cerebrum.

Question 18

Conscious muscle sense is felt by the ___ of the brain.

A)frontal lobes
B)parietal lobes
C)cerebellum
D)midbrain

Question 19

Unconscious muscle sense is integrated by the ___ of the brain.

A)frontal lobes
B)parietal lobes
C)temporal lobes
D)cerebellum

Question 20

The cutaneous receptors for heat and cold are called ___,and are found mainly in the ___.

A)free nerve endings/epidermis
B)free nerve endings/dermis
C)encapsulated nerve endings/epidermis
D)encapsulated nerve endings/dermis

Question 21

The sensory area for the sense of smell is in the ___ lobes of the cerebrum.

A)frontal
B)parietal
C)temporal
D)occipital

Question 22

The part of the eye that lines the eyelids is the:

A)conjunctiva
B)sclera
C)retina
D)choroid layer

Question 23

Which statement is NOT true of the senses of taste and smell?

A)Both senses require chemoreceptors.
B)The sense of taste makes the sense of smell seem more acute.
C)Adaptation occurs in both senses.
D)Both senses are important for enjoyment of eating.

Question 24

The part of the eye that moves the eyeball from side to side is the:

A)extrinsic muscles
B)iris
C)ciliary muscle
D)intrinsic muscles

Question 25

The choroid layer of the eye:

A)gets its dark color from melanin
B)absorbs light within the eyeball
C)both A and B
D)both A and B,and is the outer layer of the eyeball

Question 26

Which of these is NOT one of the five basic tastes?

A)sour
B)salty
C)bitter
D)minty

Question 27

Which statement is NOT true of the senses of smell and taste?

A)Taste buds are located mainly on the tongue.
B)Olfactory receptors are in the upper nasal cavity.
C)Impulses for both senses are carried by cranial nerves.
D)Sensory areas for both senses are in the parietal lobes.

Question 28

The layers of the eyeball,in order from the outermost,are:

A)retina,sclera,choroid
B)sclera,choroid,retina
C)choroid,sclera,retina
D)sclera,retina,choroid

Question 29

Which cranial nerve is NOT paired with its correct sensation?

A)olfactory - smell
B)hypoglossal - taste
C)facial - taste
D)glossopharyngeal - taste

Question 30

The part of the eye that contains the receptors for vision is the:

A)conjunctiva
B)sclera
C)retina
D)choroid layer

Question 31

The chemoreceptors for the sense of taste detect:

A)chemicals dissolved in saliva
B)chemicals dissolved in blood plasma
C)vaporized chemicals in the nasal cavities
D)vaporized chemicals outside the body

Question 32

The part of the eye that absorbs light within the eyeball to prevent glare is the:

A)conjunctiva
B)sclera
C)retina
D)choroid layer

Question 33

The sensory area for the sense of taste is in the ___ lobes of the cerebrum.

A)frontal and parietal
B)parietal and temporal
C)temporal and occipital
D)occipital and frontal

Question 34

The temporal lobes of the cerebrum contain sensory areas for:

A)taste
B)smell
C)both A and B
D)both A and B,and for muscle sense

Question 35

The cranial nerve pair for the sense of smell is the:

A)facial
B)trigeminal
C)olfactory
D)glossopharyngeal

Question 36

The cranial nerve pairs for the sense of taste are the:

A)facial and hypoglossal
B)facial and glossopharyngeal
C)hypoglossal and trigeminal
D)trigeminal and glossopharyngeal

Question 37

The sclera of the eye:

A)is the middle layer of the eyeball
B)forms the white of the eye
C)both A and B
D)both A and B,and is made of elastic connective tissue

Question 38

The part of the eye that forms the white of the eye is the:

A)conjunctiva
B)sclera
C)retina
D)choroid layer

Question 39

The retina of the eye:

A)contains the receptors for vision
B)is made of connective tissue
C)both A and B
D)both A and B,and forms the oculomotor nerve

Question 40

The conjunctiva of the eye:

A)covers the white of the eye
B)lines the eyelids
C)both A and B
D)both A and B,and covers the lens

Question 41

The iris of the eye:

A)regulates the size of the pupil
B)is behind the lens and cornea
C)both A and B
D)both A and B,and it has color from melanin

Question 42

The fovea of the eye:

A)is the area of best color vision
B)absorbs aqueous humor
C)is the site of the optic nerve
D)all of the above

Question 43

The cornea of the eye:

A)is transparent
B)is the anterior portion of the sclera
C)both A and B
D)both A and B,and it has no capillaries

Question 44

The extrinsic muscles of the eye:

A)are six in number for each eye
B)move the eyeball within the orbit
C)both A and B
D)both A and B,and are innervated by cranial nerves

Question 45

The ciliary muscle of the eye:

A)changes the shape of the lens
B)changes the shape of the pupil
C)moves the eyeball
D)adjusts the retina for best focus

Question 46

The part of the eye that is the area for best color vision is the:

A)fovea
B)optic disc
C)bipolar disc
D)choroid disc

Question 47

The part of the eye that regulates the size of the pupil is the:

A)extrinsic muscle
B)iris
C)ciliary muscle
D)suspensory ligaments

Question 48

The part of the eye that keeps dust out of the eye is the:

A)eyelashes
B)cornea
C)sclera
D)conjunctiva

Question 49

The part of the eye that produces tears is the:

A)cornea
B)lacrimal gland
C)conjunctiva
D)nasolacrimal duct

Question 50

The part of the eye that light waves pass through first is the:

A)cornea
B)conjunctiva
C)lens
D)retina

Question 51

The optic disc of the eye:

A)is the site of the optic nerve
B)is the area for best color vision
C)both A and B
D)both A and B,and is on the lateral surface of the eye

Question 52

The part of the eye where the optic nerve passes through is the:

A)fovea
B)optic disc
C)bipolar disc
D)optic chiasma

Question 53

The part of the eye that contracts to change the shape of the lens is the:

A)iris
B)cornea
C)ciliary muscle
D)optic nerve

Question 54

The ganglion neurons of the eye:

A)are part of the retina
B)form the optic nerve
C)both A and B
D)both A and B,and they all converge at the optic disc

Question 55

Tears contain ___ to inhibit the growth of bacteria on the front of the eye.

A)serous fluid
B)aqueous humor
C)vitreozyme
D)lysozyme

Question 56

The aqueous humor of the eye:

A)is found in the posterior cavity
B)nourishes the lens and cornea
C)both A and B
D)both A and B,and is a stationary fluid

Question 57

The fluid of the eye that contains lysozyme to inhibit bacterial growth is:

A)aqueous humor
B)vitreous humor
C)plasma
D)tears

Question 58

The lacrimal glands of the eye:

A)produce tears
B)are within the bony orbit
C)both A and B
D)both A and B,and are medial and inferior to the eyeball

Question 59

The part of the eye that forms the optic nerve is the:

A)rods
B)cones
C)bipolar neurons
D)ganglion neurons

Question 60

The fluid of the eye that nourishes the lens and cornea is:

A)tears
B)vitreous humor
C)aqueous humor
D)plasma

Question 61

The receptors in the retina that detect the presence of light are the:

A)cones
B)ganglion neurons
C)rods
D)foveas

Question 62

The rhodopsin of the eye:

A)is found in the rods
B)breaks down when light strikes it
C)both A and B
D)both A and B,and vitamin A is required for its synthesis

Question 63

Which part of the eye is NOT paired with its correct function?

A)aqueous humor - nourishes the lens and cornea
B)extrinsic muscles - move the eyeball
C)iris - changes the shape of the lens
D)conjunctiva - lines the eyelids

Question 64

The chemical in rods that breaks down when light strikes it is:

A)rhodopsin
B)scotopsin
C)melanin
D)vitamin A

Question 65

The vitreous humor of the eye:

A)helps keep the retina in place
B)is a semisolid
C)is in the posterior cavity of the eye
D)all of the above

Question 66

Constriction of the pupil,as in bright light,is brought about by the ___ nerves.

A)optic
B)oculomotor
C)sympathetic
D)trochlear

Question 67

The part of the eye that helps keep the retina in place is the:

A)vitreous humor
B)sclera
C)aqueous humor
D)lens

Question 68

The only part of the eye that is adjustable for the refraction (focusing)of light rays is the:

A)vitreous humor
B)lens
C)cornea
D)iris

Question 69

The cranial nerve pair for vision is the:

A)oculomotor
B)abducens
C)optic
D)trochlear

Question 70

The part of the retina that contains only cones is called the:

A)optic disc
B)bipolar neuron
C)blind spot
D)fovea

Question 71

The site of reabsorption of aqueous humor is the:

A)fovea
B)ciliary muscle
C)canal of Schlemm
D)suspensory ligament

Question 72

Which part of the eye is NOT paired with its correct function?

A)eyelashes - keep dust out of eyes
B)fovea - provides the best color vision
C)retina - contains photoreceptors
D)cornea - adjusts to change the focus of light rays

Question 73

Which part of the eye is NOT paired with its correct function?

A)sclera - forms the white of the eye
B)choroid layer - contains the receptors
C)lacrimal glands - produce tears
D)ganglion neurons - form the optic nerve

Question 74

The receptors in the retina that detect color are the:

A)optic discs
B)cones
C)rods
D)ganglion neurons

Question 75

The parts of the eye that refract (focus)light rays are:
The correct sequence in which light rays pass through them is:

A)4,2,3,1
B)3,2,1,4
C)4,3,1,2
D)3,4,2,1

Question 76

Which part of the eye is NOT paired with its correct function?

A)vitreous humor - helps keep the retina in place
B)tears - prevent bacterial growth on the retina
C)canal of Schlemm - reabsorbs aqueous humor
D)optic disc - site of optic nerve passage through the retina

Question 77

Which of these cranial nerve pairs is NOT involved in movement of the eyeball?

A)optic
B)abducens
C)oculomotor
D)trochlear

Question 78

Which statement is NOT true about vision?

A)The rods detect light and the cones detect color.
B)Impulses from the retina are carried by the optic nerves to the optic tracks.
C)The iris regulates the size of the pupil.
D)The cornea is adjustable to light from different distances.

Question 79

The lobes of the cerebrum that contain the visual areas are the:

A)frontal
B)parietal
C)temporal
D)occipital

Question 80

The first part of the eye that refracts (focuses)light rays is the:

A)vitreous humor
B)lens
C)aqueous humor
D)cornea