The Senses

Front 1

Stimuli

Back 1

Light, sound and temp are changed into electrical signal or impulse

Front 2

Vision

Back 2

Takes place the eye

Hint 2

Is the primary sensory organ for obtaining info about surroundings

Front 3

Eyelid

Back 3

Protect the exposed/external portion of the eye.

Small hairs extend off to prevent organisms from reaching the eye.

Front 4

Extrinsic muscle

Back 4

Skeletal muscle that control the eye

Front 5

Lacrimal gland

Back 5

Secretes tears which lube the eye

Tests consist of solution that helps kill microbes

Fluid drain into nasal cavity

Front 6

Sclera

Back 6

Thick, though protective layer composed of white fibrous tissue

Hint 6

White of eyes

Front 7

Cornea

Back 7

Transparent tissue covering the front of the eye, allows light to pass through

Front 8

Pupil

Back 8

The opening in the center of the eye that allows light to pass through

Front 9

Lens

Back 9

Transparent disc that change shape to bend into the eye

Front 10

Ciliary muscle

Back 10

Control the shape of the lens for focusing

Front 11

Iris

Back 11

Colored, circular band of muscle that controls the size of the pupil to regulate the amount of light entering the eye

Front 12

Retina

Back 12

Layer of tissue lining the inner surface of the eye; contains two types of photoreceptors that redskins to light

Front 13

Cones

Back 13

Photoreceptors that respond to color and bright conditions; contains 3 million in each eye

Front 14

Rods

Back 14

120 million photoreceptors that respond to low light conditions

Front 15

Vitreous humor

Back 15

Clear, jelly like fluid found inside the eye that provides pressure to maintain eye shape

Front 16

Optic nerve

Back 16

Transmits info from the eye to the brain

Front 17

Ear

Back 17

Sense organ associated with hearing and equilibrium and balance

Front 18

Hearing

Back 18

specialized mechanoreceptors located within the ears to receive audio and maintain equilibriumSound is produced by disturbances in the air (sound waves)

Front 19

Auricle

Back 19

Funnels sound toward the inner ear (rear lobe)

Hint 19

External ear

Front 20

External auditory canal

Back 20

A tube that extends through the bone to the inner ear, lined with hair and wax to keep out material

Hint 20

External ear

Front 21

Tympanic membrane

Back 21

Sound waves bounce off this thin barrier, creating vibrations (ear drum)

Hint 21

Middle ear

Front 22

Auditory ossicles

Back 22

Vibrations from the triumphant membrane carries through bones in the ear

Hint 22

Middle ear

Front 23

Malleus

Back 23

Transfers vibration from the tympanic membrane to the incus

Hint 23

Auditory ossicle

Front 24

Stapes

Back 24

Transfers vibrations to the inner ear

Hint 24

Auditory ossicle

Front 25

Incus

Back 25

Transfers vibrations to the stapes

Hint 25

Auditory ossicle

Front 26

Eustachian tubes

Back 26

Narrow pathway that connects the middle ear to the pharynx, maintains air pressure on both side of the tympanic membrane.

Hint 26

Middle ear

Front 27

Semicircular canals

Back 27

3 fluid filled loops that help sense equilibrium

Hint 27

Inner ear

Front 28

Vestibule

Back 28

The chamber between the semicircular loops and the cochlea.

Hint 28

Inner ear

Front 29

Cochlea

Back 29

Large spinal structure that is divided into upper and lower components filled with fluid called perilymph and a cochlear duct filled endolymph.

Hint 29

Inner ear

Front 30

Organ of Corti

Back 30

Composed of a specialized mechanoreceptors called hair cells that transfer movement of the perilymph into nerve impulses that are sent to the brain

Front 31

Taste buds

Back 31

Chemical receptors that generate nervous impulses resulting in the sense of taste. There are about ten thousand microscopic taste buds located on the papillae of the tounge

Front 32

Taste sensations

Back 32

Sweet, sour, salty, bitter and umami

Hint 32

Other flavors result from combinations and olfactory receptors stimulation ie taste includes odor

Front 33

Smell

Back 33

Chemoreceptors called olfactory cells in the nasal cavities detect chemicals carried in the air

Front 34

Cutanious sensation

Back 34

Receptors of the general sense organs are found in almost every part of the body

Front 35

Encapsulated nerve endings

Back 35

Located in the Dermis, touch and pressure

Front 36

Free nerve endings

Back 36

Mainly in the dermis of the skin,v mucosa, internal organs. They sense pain or crude touch.

Hint 36

Reffered pain

Front 37

Meissnrs corpuscles

Back 37

Skin fingertipsb and lips; sense of fine touch and vibration.

Hint 37

Types of receptors

Front 38

Ruffinis corpuscles

Back 38

Skin and subcutaneous tissue of the fingers touch and pressure

Hint 38

Types of receptors

Front 39

Pacinian corpuscles

Back 39

Subcutaneous; deep pressure and vibration

Hint 39

Receptors

Front 40

Krause'end bulbs

Back 40

Skin and subcutaneous; touch and maybe cold

Hint 40

Receptors

Front 41

Muscle spindles

Back 41

Skeletal muscle; proprioception.

Proprioception is the sense of position and movement in various parts of the body

Front 42

Projection sensation

Back 42

Seems to come from the area where the receptors were stimulated ; in reality they're being felt via the cerebral cortex

Front 43

Phantom pain

Back 43

Receptors are removed with amputated limbs but severed nerve endings continue to send impulses to the brain

Front 44

Intensity

Back 44

The intensity of a sensation is related to the strength of the stimulus and/or number of receptors stimulated

Front 45

Contrast

Back 45

Effect of a previous sensation on current sensation; brain Compares a new sensation to a previous one

Front 46

Adaptation

Back 46

Become unaware of a continuous stimulus

Front 47

After image

Back 47

Sinsation remains in the Consciousness even after the stimulus is gone - Flash from a camera.