Senses Chapter 10

Question 1

True or false
Mechanoreceptors located in the three semicircular canals of the inner ear generate nerve impulses for example when your head moves, these impulses then travel to the brain.

Answer 1

True

Question 2

What are the main function of the sensory system?

Answer 2

Allow us to respond to stimuli such as touch, pressure, temperature, and pain.

Sense changes in our external and internal environments.

Sense dangers to our homeostasis in order to take appropriate action.

Question 3

True or false:
When the fibers of the iris contract, the pupil dilates, letting in more light rays and vice versa. Normally, the pupil will constrict in bright light and dilate in dim light, caused by the movement of the iris.

Answer 3

True

Question 4

Called the “window” of the eye

Answer 4

Cornea

Question 5

A biconvex disc

Answer 5

A biconvex disc → Lens,

Question 6

A biconvex disc

Answer 6

A biconvex disc → Lens

Question 7

The region of the eye where the majority of light is used to stimulate impulses

Answer 7

The region of the eye where the majority of light is used to stimulate impulses → Macula

Question 8

The narrowest region of the retina that has the most receptors

Answer 8

The narrowest region of the retina that has the most receptors → Fovea,

Question 9

The layer containing photoreceptors

Answer 9

The layer containing photoreceptors → Retina,

Question 10

Used for day vision :
Rods or cones?

Answer 10

Used for day vision → Cones,

Question 11

Used for night vision

Answer 11

Used for night vision → Rods,

Question 12

Fluid in the anterior chamber of the eye

Answer 12

Fluid in the anterior chamber of the eye → Aqueous humour,

Question 13

Fluid in the posterior chamber of the eye

Answer 13

Fluid in the posterior chamber of the eye → Vitreous humour

Question 14

True or false

Mechanoreceptors located in the three semicircular canals of the inner ear generate nerve impulses for example when your head moves, these impulses then travel to the brain.

Answer 14

True

Question 15

What are the primary tastes?

Answer 15

Bitter
Sour
Salty
Sweet

Question 16

Contains the ossicles

Answer 16

Contains the ossicles → Middle ear,

Question 17

Contains cerumen , (location)

Answer 17

Contains cerumen → External ear,

Question 18

Contains the nerves (location)

Answer 18

Contains the nerves → Inner ear,

Question 19

Contains the Eustachian tube (location)

Answer 19

Contains the eustachian tube → Middle ear,

Question 20

Carries the sound waves (location)

Answer 20

Carries the sound waves → External ear,

Question 21

Magnifies the sound waves (location)

Answer 21

Magnifies the sound waves → Middle ear,

Question 22

Creates nerve impulses for sound waves (location)

Answer 22

Creates nerve impulses for sound waves → Inner ear,

Question 23

Most common site for ear infections (location)

Answer 23

Most common site for ear infections → Middle ear

Question 24

Caused by shortening of the eyeball?

Answer 24

Hyperopia

Question 25

Name the nerve (fibres) that originate in the semicircular canals

Answer 25

The vestibular nerve

Question 26

Examples of hearing loss or damage caused by nerve impairment or damage

Answer 26

Meniere disease
Presbycusis

Question 27

Bones of the middle ear

Answer 27

Stapes
Malleus
Incus

Question 28

Body has the least amount of receptors (location)

Answer 28

Back

Question 29

The external ear meets the middle ear (location)

Answer 29

Tympanic membrane

Question 30

Structure in the inner ear responsible for balance

Answer 30

Semicircular canals

Question 31

The sense of touch is considered a

Answer 31

General sense

Question 32

“White” of the eye

Answer 32

Sclera

Question 33

If the eye is elongated it causes what condition

Answer 33

Hyperopia
Nearsightedness

Question 34

Three layers of connective tissue that form the eyeball

Answer 34

Sclera
Choroid
Retina

Question 35

Involuntary muscle that makes up the front of the choroid

Answer 35

The iris
The ciliary body

Question 36

Associated with the retina

Answer 36

Rods
Cones
Macula

Question 37

Cones found in the retina

Answer 37

Blue
Red
Green

Question 38

Muscle spindles can be considered ? Receptors?

Answer 38

Proprioceptor

Question 39

The eye is considered a ? Sense

Answer 39

Special sense

Question 40

Structure in the ear that is the “organ of hearing”

Answer 40

Cochlea

Question 41

May result from prolonged exposure to UV radiation

Answer 41

Cataracts

Question 42

Facts about the sense of taste

Answer 42

Uses chemoreceptors

Generated by cells called gustatory cells

Taste buds are on the papillae of the tongue

Question 43

May happen from improper drainage of the aqueous humor

Answer 43

Glaucoma