The Senses Vocab

Question 1

Auricle

Answer 1

An epidermal covered cartilage structure which functions in funneling sound vibrations into the
external auditory meatus

Question 2

External auditory meatus

Answer 2

A bony canal which carries sound waves to the tympanic membrane and has
various protective structures

Question 3

Tympanic membrane

Answer 3

A thin membrane of epithelium which transduces air vibrations into mechanical
vibrations on the way to the inner ear.

Question 4

Tympanic cavity

Answer 4

An air filled chamber within the ear in which the auditory ossicles are located

Question 5

Auditory ossicles

Answer 5

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Question 6

Oval window

Answer 6

A structure of the inner ear which articulates with the stapes and transduces mechanical
vibrations into liquid waves as they enter the cochlea

Question 7

Labyrinth

Answer 7

A bony or membranous chamber or maze which makes up all structures within the inner ear

Question 8

Cochlea

Answer 8

Portion of the inner ear which houses the organs of Corti. Organ which enables us to hear.

Question 9

Semicircular canals

Answer 9

bony labyrinth structures of the inner ear which provide us with the sense of
dynamic equilibrium

Question 10

Vestibule

Answer 10

The area of the inner ear which houses the organs of static equilibrium

Question 11

Round window

Answer 11

A small area of the inner ear in which waves exiting the scala tympanii of the cochelea
can be dissipated into the tympanic chamber

Question 12

Organs of Corti

Answer 12

Microscopic hair-like sound receptors which are stimulated by various frequencies of
sound waves

Question 13

Conjunctiva

Answer 13

A clear thin transparent membrane which lines the eyelid and the anterior surface of the eye expect the cornea

Question 14

Lacrimal gland

Answer 14

Organ which produces a substance made of water, mucous, salts, and lysozyme

Question 15

Cornea

Answer 15

Tough transparent covering over the anterior 1/6th of the eye which allows light to enter

Question 16

Sclera

Answer 16

The outer covering of there posterior 5/6ths of the eye composed of fibrous connective tissue

Question 17

Choroid

Answer 17

The black middle layer of the eye which contains blood vessles

Question 18

Ciliary body

Answer 18

Structures of the eye which function in focusing the eye made up of the lens, ciliary muscles, and suspensory ligaments

Question 19

Lens

Answer 19

A clear membrane like structure which is very elastic and refracts light upon the retina

Question 20

Aqueous humor

Answer 20

A clear fluid filling the anterior cavity of the eye which nourishes the cornea and other internal parts

Question 21

Vitreous humor

Answer 21

A clear jelly like liquid which fulls the posterior cavity of the eye

Question 22

Accommodation

Answer 22

The ability of the ciliary muscles to change the shape of the lens, allowing clear focus at different focal lengths

Question 23

Iris

Answer 23

A sphincter muscle which controls the amount of light that enters the eye

Question 24

Optic disk

Answer 24

The point on the retina in which the optic nerve exits the eye and there are no photoreceptors at this point

Question 25

Refraction

Answer 25

The bending of light rays as they pass through one medium into another

Question 26

Myopia

Answer 26

A vision defect in which the eye is too long for correct focus

Question 27

Hyperopia

Answer 27

A vision detect in which is too short for correct focus

Question 28

Retina

Answer 28

The innermost layer of the posterior cavity of the eye. It is made up of millions of photoreceptors

Question 29

Rods

Answer 29

Photoreceptors which function in black and white vision

Question 30

Cones

Answer 30

Specialized photoreceptors which are responsible of color vision

Question 31

Astigmatism

Answer 31

A defect in the curvature of the cornea or sometimes the lens

Question 32

Presbyopia

Answer 32

A loss in the ability to focus on near objects due to the loss. of elasticity in the lens