Ch. 9: Senses

Front 1

Photoreceptors are stimulated by______

Back 1

light

Front 2

Chemoreceptors are stimulated by ________

Back 2

chemicals

Front 3

Pain receptors are stimulated by_______

Back 3

injury

Front 4

Thermoreceptors are stimulated by ________

Back 4

temperature changes

Front 5

Mechanoreceptors are stimulated by ________

Back 5

movement or deforming of capsule

Front 6

Proprioceptors are stimulated by ________

Back 6

position of body parts or changes in muscle length or tension

Front 7

General sense organs are found________

Back 7

throughout the body

Front 8

Free nerve endings (naked nerve ending) can sense ______ on the skin

Back 8

pain, itch, tickle, crude touch

Front 9

Meissner’s corpuscles can sense ______ on the skin

Back 9

fine touch and vibration

Front 10

Pacinian & Ruffini’s corpuscles can sense ________. on the skin

Back 10

pressure and vibration

Front 11

Ruffini corpuscles can sense _______ on the skin

Back 11

touch and pressure

Front 12

Pacini Corpuscles can sense______ on the skin

Back 12

high frequency vibration and touch

Front 13

Krause End bulbs can sense _______

Back 13

touch

Front 14

Muscles Spindles can sense ________

Back 14

muscle length

Front 15

Golgi tendon organs can sense _________

Back 15

muscle tension

Front 16

_____________ is the awareness of our posture, weight, movement and position of limbs, both in relation to our environment and in relation to other parts of our bodies.

Also known as the "sixth sense"

Back 16

Propioception

Front 17

________slows down communication between the central and peripheral nervous systems through a process known as demyelination.

Back 17

MS - Multiple Sclerosis

Front 18

_____ is the loss of myelin (the fatty protective sheath surrounding nerve cells) caused by multiple sclerosis (MS).

Back 18

Demyelination

Front 19

______results in disruptions in the ability of nerves to communicate with one another, as it slows down signals traveling along the nerves

Back 19

Demyelination

Front 20

Rods and cones are the receptors for the ______.

Back 20

Eye

Front 21

____ is the innermost layer of the eyeball

Back 21

retina

Front 22

The _____ of the eyes lye directly behind the pupil

Back 22

lens

Front 23

______, _______, and _______ are the 3 layers of tissue that form the eyeball

Back 23

sclera
choroid
retina

Front 24

It is known as the window to the eye because it is transparent and lacks blood vessels and lymphatics

Back 24

cornea

Front 25

A mucous membrane known as the ______ lines the eyelids and covers the sclera in front

Back 25

conjuctiva

Front 26

Tears are formed in the _________

Back 26

lacrimal gland

Front 27

rods for _____

Back 27

rotten light

for dim vision or night vision, see in shades of gray. They are sensitive
to light and to motion

Front 28

cones for_____

Back 28

color

They function in bright light

Front 29

Ciliary Body

Back 29

controls lens shape

Front 30

Iris

Back 30

visible colored portion of the eye. It regulates the size of the pupil.
Muscles in the iris constrict or dilate to regulate pupil size

Front 31

Cornea

Back 31

transparent bulge in the front. It bends light rays

Front 32

Sclera

Back 32

the white of the eye

Front 33

Retina

Back 33

contains specialized neurons called photoreceptors.

rod cells and cone cells

Front 34

There are 2 types
of photoreceptors:

Back 34

rod cells and cone cells

Front 35

Aqueous humor

(Eye fluids)

Back 35

fills the anterior chamber (in front of the lens). It is continuously made and drained.

Front 36

Vitreous humor

(Eye fluids)

Back 36

fills the posterior chamber (behind the lens). It is gel-like.

Front 37

The ciliary muscles is relaxed, lens is flattened, and the suspensory ligament taut when the eye is focusing on a ________ ________.

Back 37

distant object

Front 38

The ciliary muscles is contracted, lens is rounded, and the suspensory ligament is relaxed when the eye is focusing on a ________ ________.

Back 38

near object

Front 39

___________ connects the middle ear to the throat

Back 39

Eustachian tube

Front 40

Outer ear

Back 40

auricle (pinna)
auditory tube

Front 41

eardrum

Back 41

Tympanic Membrane

Front 42

_________are tiny bones that amplify sound that serve to amplify the sound

Back 42

Ossicles: malleus, incus, and stapes.

Front 43

__________the stapes (or stirrup) attaches to this to send vibrations through

Back 43

oval window

Front 44

________ is the inner ear involved in equilibrium (balance)

Back 44

Semicircular Canals and Vestibule

Front 45

________ is the inner ear involved in hearing

Back 45

Cochlea

Front 46

Sound waves in the air are conducted to the _______, where the specialized neurons involved in hearing are
found.

Back 46

inner ear

Front 47

_______is the receptor for hearing

Back 47

Organ of Corti

Front 48

The Organ of Corti is found
in the ________ of the inner ear

Back 48

cochlea

Front 49

___________ is the path the sound waves take to get to the inner ear

Back 49

Conduction pathway

Front 50

The receptors for balance in the semicircular canals of the inner ear are called ___________ __________.

Back 50

cristae ampullaris

Front 51

cristae ampullaris detect _____ movements of the head and then sends it to the brain to maintain balance

Back 51

rotational

Front 52

______ cells are the receptors for taste buds to sense taste

Back 52

gustatory

Front 53

_________ cells are the receptors for the nose to sense smell

Back 53

olfactory