Question 1

Match the eye disorders, labelled a. through i., with their descriptions. (Options may be used more than once or not at all.)
-opaque lens

Accepted Answer

A cataract is an opaque lens in the eye that results in blurry vision.

Answer: B
 Night blindness is a condition where individuals have difficulty seeing in low light conditions and is often caused by a deficiency of vitamin A.

Answer: G
 Myopia is a refractive error, also known as nearsightedness, where individuals have difficulty seeing distant objects clearly.

Answer: H
 A cataract is an opaque lens in the eye that results in blurry vision.

Answer: I
 Astigmatism is a refractive error where the cornea is abnormally curved, causing blurry vision.

Note: The other options (A, C, D, E, F) do not match any of the given descriptions of eye disorders.

Question 2

Match the ear parts, labelled a. through e., with their characteristics. (Options may be used more than once or not at all.)
-contains the tympanic membrane, which vibrates in synchrony with sound waves

Accepted Answer

The tympanic membrane, also known as the eardrum, is a part of the middle ear. It vibrates in response to sound waves, which are then transmitted to the ossicles within the middle ear.

Question 3

Match the ear parts, labelled a. through e., with their characteristics. (Options may be used more than once or not at all.)
-air filled

Accepted Answer

The answer of Match the ear parts, labelled a. through...

Question 4

Match the eye disorders, labelled a. through i., with their descriptions. (Options may be used more than once or not at all.)
-lack of a cone type

Accepted Answer

Lack of a cone type is a characteristic of color blindness.

Answer: B 
 Night blindness means difficulty seeing in low light or in the dark.

Answer: C 
 Glaucoma is a disorder that damages the optic nerve and can cause blindness.

Answer: D 
 Hyperopia, or farsightedness, means a person can see distant objects clearly but has difficulty with near objects.

Answer: G 
 Myopia, or nearsightedness, means a person can see near objects clearly but has difficulty with distant objects.

Answer: H 
 A cataract is when the lens of the eye becomes cloudy, causing vision impairment.

Answer: I 
 Astigmatism is when the cornea is shaped irregularly, causing blurred or distorted vision.

Option E, diplopia, is not described. Option F, presbyopia, is not matched with a description.

Question 5

Match the ear parts, labelled a. through e., with their characteristics. (Options may be used more than once or not at all.)
-concerned with hearing

Accepted Answer

The cochlea in the inner ear is specifically concerned with hearing as it contains the sensory organ of hearing, the organ of Corti, which converts sound waves into nerve impulses.

Question 6

Match the eye disorders, labelled a. through i., with their descriptions. (Options may be used more than once or not at all.)
-images from two eyes not fused within cortex

Accepted Answer

Diplopia, also known as double vision, occurs when the images from the two eyes are not properly fused within the brain's visual cortex. This can result from a variety of causes, including misalignment of the eyes (strabismus), nerve damage, or other conditions affecting the eye muscles or brain.

Question 7

Match the eye disorders, labelled a. through i., with their descriptions. (Options may be used more than once or not at all.)
-corrected by cylindrical lens

Accepted Answer

Astigmatism is an eye condition that causes blurred vision due to the irregular shape of the cornea or the lens inside the eye. It is corrected using cylindrical lenses, which help to focus light more evenly onto the retina.

Question 8

Match the ear parts, labelled a. through e., with their characteristics. (Options may be used more than once or not at all.)
-contains the ossicular system, which contributes to the amplification of the sound wave

Accepted Answer

The middle ear contains the ossicular system, which includes three tiny bones known as the malleus, incus, and stapes. These bones play a crucial role in the amplification and transmission of sound waves from the external ear to the inner ear.

Question 9

Match the ear parts, labelled a. through e., with their characteristics. (Options may be used more than once or not at all.)
-fluid filled

Accepted Answer

The answer of Match the ear parts, labelled a. through...

Question 10

Match the ear parts, labelled a. through e., with their characteristics. (Options may be used more than once or not at all.)
-contains receptive hair cells

Accepted Answer

The answer of Match the ear parts, labelled a. through...

Question 11

Match the eye disorders, labelled a. through i., with their descriptions. (Options may be used more than once or not at all.)
-corneal surface uneven

Accepted Answer

Astigmatism is characterized by an uneven corneal surface, which causes blurred or distorted vision.

Question 12

Match the eye disorders, labelled a. through i., with their descriptions. (Options may be used more than once or not at all.)
-corrected by convex

Accepted Answer

Hyperopia is corrected by convex lenses.

Question 13

Match the eye disorders, labelled a. through i., with their descriptions. (Options may be used more than once or not at all.)
-increased intraocular pressure

Accepted Answer

Glaucoma is characterized by increased intraocular pressure, which can cause damage to the optic nerve and loss of vision.

Answer: H 
 A cataract is a clouding of the lens in the eye, which can cause blurry or double vision.

Answer: G 
 Myopia, or nearsightedness, is a condition where objects in the distance appear blurry.

Answer: I 
 Astigmatism is a refractive error of the eye that can cause blurry or distorted vision.

Answer: D 
 Hyperopia, or farsightedness, is a condition where objects close up appear blurry.

Answer: B 
 Night blindness, or nyctalopia, is the inability to see well in low light conditions.

Answer: F 
 Presbyopia is a condition that occurs with age, where the eyes lose the ability to focus on objects up close.

Answer: A 
 Colour blindness is a genetic condition where individuals have difficulty distinguishing between certain colours.

Answer: E 
 Diplopia, or double vision, occurs when the eyes are not aligned properly and the brain receives two different images.

Question 14

Match the ear parts, labelled a. through e., with their characteristics. (Options may be used more than once or not at all.)
-concerned with sense of equilibrium

Accepted Answer

The semicircular canals are part of the inner ear and are concerned with the sense of equilibrium.

Question 15

Match the eye disorders, labelled a. through i., with their descriptions. (Options may be used more than once or not at all.)
-corrected by concave lens

Accepted Answer

Myopia, also known as nearsightedness, is a condition where distant objects appear blurry while close objects can be seen clearly. This is due to the light rays focusing in front of the retina rather than directly on it. A concave lens is used to correct myopia by diverging the light rays before they enter the eye, allowing them to focus on the retina and improve distant vision.

Question 16

Match the ear parts, labelled a. through e., with their characteristics. (Options may be used more than once or not at all.)
-provides information about the position of the head relative to gravity

Accepted Answer

The utricle and saccule in the inner ear are specifically involved in detecting linear accelerations and head positions relative to gravity, providing essential information for balance and spatial orientation.

Question 17

Match the eye disorders, labelled a. through i., with their descriptions. (Options may be used more than once or not at all.)
-stiffened lens

Accepted Answer

Presbyopia is caused by the stiffening of the lens, which affects the eye's ability to focus on close objects.

Question 18

Match the eye disorders, labelled a. through i., with their descriptions. (Options may be used more than once or not at all.)
-vitamin A deficiency

Accepted Answer

Night blindness, also known as nyctalopia, is directly associated with vitamin A deficiency. Vitamin A is crucial for maintaining a healthy retina, and its deficiency can impair vision under low light conditions.

Question 19

Match the ear parts, labelled a. through e., with their characteristics. (Options may be used more than once or not at all.)
-contains a cupula, which sways in the direction of endolymph movement, bending the embedded hair cells

Accepted Answer

The semicircular canal in the inner ear contains a cupula, which sways in the direction of endolymph movement, bending the embedded hair cells. No other option matches this characteristic.

Question 20

Match the ear parts, labelled a. through e., with their characteristics. (Options may be used more than once or not at all.)
-detects rotational acceleration or deceleration of the head

Accepted Answer

The semicircular canals in the inner ear detect rotational acceleration or deceleration of the head.

Answer: A and B 
 The external ear and middle ear are not involved in detecting rotational acceleration or deceleration of the head. The external ear collects sound waves and the middle ear amplifies and transmits these sound waves to the inner ear.

Answer: C, E 
 The cochlea in the inner ear is responsible for hearing and the utricle and saccule in the inner ear are responsible for detecting linear acceleration and head position. Neither of these structures are specifically involved in detecting rotational acceleration or deceleration of the head.

Quiz 4: The Peripheral Nervous System: Sensory, Autonomic, Somatic

Match the eye disorders, labelled a. through i., with their descriptions. (Options may be used more than once or not at all.) -opaque lens

Match the ear parts, labelled a. through e., with their characteristics. (Options may be used more than once or not at all.) -contains the tympanic membrane, which vibrates in synchrony with sound waves

Match the ear parts, labelled a. through e., with their characteristics. (Options may be used more than once or not at all.) -air filled

Match the eye disorders, labelled a. through i., with their descriptions. (Options may be used more than once or not at all.) -lack of a cone type

Match the ear parts, labelled a. through e., with their characteristics. (Options may be used more than once or not at all.) -concerned with hearing

Match the eye disorders, labelled a. through i., with their descriptions. (Options may be used more than once or not at all.) -images from two eyes not fused within cortex

Match the eye disorders, labelled a. through i., with their descriptions. (Options may be used more than once or not at all.) -corrected by cylindrical lens

Match the ear parts, labelled a. through e., with their characteristics. (Options may be used more than once or not at all.) -contains the ossicular system, which contributes to the amplification of the sound wave

Match the ear parts, labelled a. through e., with their characteristics. (Options may be used more than once or not at all.) -fluid filled

Match the ear parts, labelled a. through e., with their characteristics. (Options may be used more than once or not at all.) -contains receptive hair cells

Match the eye disorders, labelled a. through i., with their descriptions. (Options may be used more than once or not at all.) -corneal surface uneven

Match the eye disorders, labelled a. through i., with their descriptions. (Options may be used more than once or not at all.) -corrected by convex

Match the eye disorders, labelled a. through i., with their descriptions. (Options may be used more than once or not at all.) -increased intraocular pressure

Match the ear parts, labelled a. through e., with their characteristics. (Options may be used more than once or not at all.) -concerned with sense of equilibrium

Match the eye disorders, labelled a. through i., with their descriptions. (Options may be used more than once or not at all.) -corrected by concave lens

Match the ear parts, labelled a. through e., with their characteristics. (Options may be used more than once or not at all.) -provides information about the position of the head relative to gravity

Match the eye disorders, labelled a. through i., with their descriptions. (Options may be used more than once or not at all.) -stiffened lens

Match the eye disorders, labelled a. through i., with their descriptions. (Options may be used more than once or not at all.) -vitamin A deficiency

Match the ear parts, labelled a. through e., with their characteristics. (Options may be used more than once or not at all.) -contains a cupula, which sways in the direction of endolymph movement, bending the embedded hair cells

Match the ear parts, labelled a. through e., with their characteristics. (Options may be used more than once or not at all.) -detects rotational acceleration or deceleration of the head