Sensory Organs

Front 1

Sensory receptors:

Back 1

Detect changes in the internal and external environment

Front 2

Receptor response function:

Back 2

Responds to stimuli by converting them to nerve impulses.

Front 3

Receptor potential:

Back 3

Develops when a stimulus acts on a receptor.

Front 4

Threshold

Back 4

Baseline levels

Front 5

Adaptation (Numb)

Back 5

Adaptation in relation to receptor potential decrease in response to stimulus, leads to decrease in impulse rate and decrease in sensation.

Front 6

Receptors for special senses:

Back 6

Smell, taste, vision, hearing, equilibrium

Back 7

skin

mucosa
connective tissues
muscles
tendons joints
viscera

Front 8

Sensory receptors classification by location

Back 8

Exteroceptors

Visceroceptors (interoceptor)

Proprioceptors

Front 9

On the body or surface:

A. Exteroceptors

B. Visceroceptors

C. Proprioceptors

Back 9

A. Exteroceptors

Front 10

Located internally, often within the body organs, or visera:

A. Viseroceptors

B. Proprioceptors

C. Exteroceptors

Back 10

A. Viseroceptors

Front 11

Location limited to skeletal muscle, joint capsules, and tendons:

A. Viseroceptors

B. Exteroceptors

C. Proprioceptors

Back 11

C. Proprioceptors

Front 12

Classification by Stimulus detected:

COMPTN

Back 12

Chemoreceptors

Osmorepceptors

Mechanoreceptors

Photoreceptors

Thermoreceptors

Nociceptors

Front 13

Ex: of Mechanoreceptors?

Back 13

Stretching of muscle and pressure applied to skin.

Front 14

Activated when "deformed" the generate receptor:

A. Chemoreceptors

B. Mechanoreceptors

C. Thermoreceptors

Back 14

B. Mechanoreceptors

Front 15

Activated by amount or changing concentration of certain chemicals: Taste or smell

A. Thermoreceptors

B. Chemoreceptors

C. Mechanoreceptors

Back 15

B. Chemoreceptors

Front 16

Activated by changes in temperature:

A. Thermoreceptors

B. Chemoreceptors

C. Mechanoreceptors

Back 16

A. Thermoreceptors

Front 17

The sensation produced is pain:

A. Photoreceptors

B. Osmoreceptors

C. Nociceptors

Back 17

C. Nociceptors

Front 18

Found only in the eye; responds to light stimuli if intensity is great enough to generate a receptor potential:

A. Photoreceptors

B. Osmoreceptors

C. Nociceptors

Back 18

A. Photoreceptors

Front 19

Concentrated in the hypothalamus; activated by changes in concentration of electrolytes:

A. Photoreceptors

B. Osmoreceptors

C. Nociceptors

Back 19

B. Osmoreceptors

Front 20

Free nerve ending

Back 20

is a widely distributed sensory receptor which include exteroreceptors and viseroreceptors.

Front 21

Free nerve ending sensations include:

MMITT

Back 21

movement

mechanical stretching

itching

tickle

touch

Front 22

Olfactory sense organs types:

Back 22

Olfactory cilia

Olfactory cells

Olfactory epithelium

Olfactory receptors

Front 23

Located on the olfactory neurons that touch the olfactory epithelium lining the upper surface of nasal cavity.

Back 23

Olfactory cilia

Front 24

Chemorereceptors; gas molecules of chemicals dissolved mucus covering the nasal epithelium stimulate olfactory cells

Back 24

Olfactory cells

Front 25

Located in most superior portion of nasal cavity

Back 25

Olfactory epithelium

Front 26

Extremely sensitive and easily fatigued

Back 26

Olfactory receptors

Front 27

what does taste buds respond to?

Back 27

Gustatory and taste associated with papillae

Front 28

Primary taste sensation:

Back 28

Sweet, sour, bitter, salty.

Front 29

Visible portion of the ear:

Back 29

Auricle, pinna

Front 30

what is a External auditory meatus?

Back 30

Tube that leads from auricle to the temporal bone and ending at tympanic membrane.

Front 31

Tiny epithelium-lined cavity hollowed out of the temporal bone

Back 31

Middle ear

Front 32

Auditory ossicles of middle ear:

Back 32

Malleus

Incus

Stapes

Front 33

Bony labyrinth is made up of:

Back 33

Vestibule

Cochlea

Semicircular canals

Front 34

Cochlea is involved with:

Back 34

Hearing

Front 35

Fluids in ear:

Back 35

Endolymph

Perilymph

Front 36

Sound created by vibration:

Back 36

Inner ear

Front 37

Tough, white, fibrous tissue (outer coat)

A. Sclera

B. Choroid

C. Retina

Back 37

A. Sclera

Front 38

Contains many blood vessels and large amount of pigment (middle coat)

A. Sclera

B. Choroid

C. Retina

Back 38

B. Choroid

Front 39

Incomplete innermost coat of eyeball

A. Sclera

B. Choroid

C. Retina

Back 39

C. Retina

Front 40

Layers of neurons that make up the sensory retina?

Back 40

Photoreceptor neurons

Rods

Cones