Deck 9: The Senses

Question 1

Which of the following statements are true of muscle sense? (Read carefully and select all of the correct statements.)

A)The receptors detect the contraction of muscles.
B)The brain forms a mental picture of where the muscles are.
C)Conscious muscle sense is integrated in the cerebellum.
D)Unconscious muscle sense contributes to the coordination of voluntary movements.
E)Muscle sense may be conscious when learning a motor skill, and then become unconscious when the skill is mastereD
F)The receptors are called proprioceptors.

Answer 1

The brain forms a mental picture of where the muscles are.
Unconscious muscle sense contributes to the coordination of voluntary movements.
Muscle sense may be conscious when learning a motor skill, and then become unconscious when the skill is mastereD
The receptors are called proprioceptors.

Question 2

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

Answer 2

detect changes and generate impulses

Question 3

Which of the following statements are true of the parts of the eye? (Read carefully and select all of the correct statements.)

A)Vitreous humor is reabsorbed into the canal of Schlemm.
B)The radial muscles of the iris constrict the pupil.
C)The white of the eye is formed by the sclera.
D)The choroid layer absorbs light within the eyeball.
E)The conjunctiva are kept moist by tears secreted by the lacrimal glands.
F)The retina is the innermost layer of the eyeball.
G)The ciliary muscle is a circular smooth muscle that changes the shape of the cornea.
H)Aqueous humor is the tissue fluid of the eye; it nourishes the lens and cornea.

Answer 3

The white of the eye is formed by the sclera.
The choroid layer absorbs light within the eyeball.
The conjunctiva are kept moist by tears secreted by the lacrimal glands.
The retina is the innermost layer of the eyeball.
Aqueous humor is the tissue fluid of the eye; it nourishes the lens and cornea.

Question 4

Which of the following statements are true of sensory pathways? (Read carefully and select all of the correct statements.)

A)Sensory neurons carry impulses from receptors to the CNS.
B)Sensory tracts include peripheral nerves such as the femoral nerve.
C)Sensory receptors are different in that each type detects a specific type of change.
D)Sensory receptors are similar in that they all interpret impulses the same way.
E)Most of the sensory areas are in the cerebral cortex.
F)The cranial nerves involved in sensations are part of sensory tracts.

Question 5

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

Question 6

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 7

Which of the following statements are true of the ear? (Read carefully and select all of the correct statements.)

A)The cochlea contains the receptors for hearing.
B)The auditory bones, in the order they vibrate, are the malleus, incus, and stapes.
C)The nerves for hearing and equilibrium are the ninth cranial nerves.
D)The eardrum is at the end of the ear canal.
E)The receptors that detect movement of the head are hair cells in the organ of Corti.
F)The four semicircular canals have hair cells that respond to gravity.
G)Air pressure in the middle ear cavity is regulated by the mastoid sinus.
H)The auditory areas are in the temporal lobes.

Question 8

Which of the following statements are true of arterial receptors? (Read carefully and select all of the correct statements.)

A)Pressoreceptors detect changes in blood pressure.
B)These receptors are found in the carotid arteries, which are within the brain.
C)These receptors are also in the aortic arch, which is in the thoracic cavity.
D)Arterial chemoreceptors detect changes in nutrient levels in the blood.
E)The information from these receptors is used to make changes in breathing and heart ratE
F)The cranial nerves that are sensory are the facial and glossopharyngeal.

Question 9

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 10

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 11

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 12

Which of the following statements are true of the cutaneous senses? (Read carefully and select all of the correct statements.)

A)Most of the receptors are in the epidermis.
B)The receptors for pain, touch, and temperature are encapsulated nerve endings.
C)The sensitivity of an area of skin depends on how close the receptors are to the surface.
D)Irritating substances in the skin can trigger itch or pain sensations.
E)Adaptation occurs with the senses of touch and pressurE
F)Contrast is an important aspect of cutaneous temperature sense.

Question 13

Which of the following statements are true of the physiology of vision? (Read carefully and select all of the correct statements.)

A)Cones are the receptors for color.
B)The lens adjusts for distant vision, and the cornea adjusts for near vision.
C)The optic nerve is formed by the ganglion neurons of the choroid layer.
D)For near vision, the pupils dilate and the eyes converge.
E)The optic chiasma is a crossing of optic nerve fibers that contributes to binocular vision.
F)The visual areas are in the occipital lobes of the cerebrum.
G)The area of the retina for the best color vision is the optic disc.
H)Rods are most numerous at the periphery of the retina.

Question 14

Which of the following statements are true of the senses of taste and smell? (Read carefully and select all of the correct statements.)

A)The cranial nerves for taste are the glossopharyngeal and hypoglossal.
B)The cranial nerves for smell are the olfactory nerves.
C)The receptors for taste and smell are chemoreceptors.
D)Each olfactory receptor can detect many different vapors.
E)The sensory areas for taste and smell are in the frontal lobes.
F)The sense of smell is largely dependent on the sense of taste.

Question 15

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 16

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 17

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

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

Question 18

Which of the following statements are true of the characteristics of sensations? (Read carefully and select all of the correct statements.)

A)Projection of a sensation means how the body will make use of it.
B)The contrast of a sensation is the length of time it is felt.
C)When a sensation seems to continue after the stimulus has stopped, it has an after-image.
D)Adaptation means that the conscious brain may eventually ignore a continuing stimulus.
E)Increasing intensity means that more receptors are generating more impulses.
F)Adaptation may occur when there is no longer a change for receptors to detect.

Question 19

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 20

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.

Question 21

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 22

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 23

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

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

Question 24

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 25

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 26

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 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 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 29

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

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

Question 30

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 31

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 32

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 33

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 34

Proprioceptors are the receptors for:

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

Question 35

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

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

Question 36

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

Question 37

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 38

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

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

Question 39

Which cranial nerve is NOT paired with its correct sensation?

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

Question 40

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

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

Question 41

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

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

Question 42

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 43

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 44

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 45

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

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

Question 46

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

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

Question 47

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

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

Question 48

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 49

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 50

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 51

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 52

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

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

Question 53

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 54

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 55

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 56

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 57

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 58

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 59

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 60

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 61

The receptors in the retina that detect color are the:

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

Question 62

The parts of the eye that refract (focus) light rays are:
1) vitreous humor
2) aqueous humor
3) lens
"4) cornea
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 63

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 64

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

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

Question 65

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 66

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 67

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 68

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 69

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 70

The part of the eye that produces tears is the:

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

Question 71

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 72

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 73

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

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

Question 74

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 75

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 76

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 77

The site of reabsorption of aqueous humor is the:

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

Question 78

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

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

Question 79

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 80

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

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