Sensory Systems
| Chemosensory | Mechanoreceptors | Radiant Energy Receptors |
| Taste (gustation) | Touch | Vision |
| Smell (olfaction) | Hearing and gravity detection | Heat |
| Internal: pH, CO2, O2, etc. | Internal: Blood Pressure, stomach, etc. | photoperiod |
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![]() Tongue papilla |
![]() Taste bud on papilla |
![]() Tutorial |
Taste bud micrograph |
![]() Olfactory membrane |
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![]() Olfactory nerves |
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![]() Pinna |
![]() Outer and middle ear |
![]() Tympanum |
![]() Tympanum and bones of middle ear |
![]() Nasophaynx |
![]() Malleus |
![]() Incus |
![]() Stapes |
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![]() Bones of middle ear |
![]() Inner ear |
![]() Inner ear |
![]() Inner ear |
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![]() Inner ear |
![]() Section through cochlea |
![]() Inner ear hair cells |
![]() inner ear hair cells This is cool too! |
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![]() Inner ear development |
Pacinian corpuscle |
![]() Spindle fibers |
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![]() Eye |
Eye |
![]() Eye musculature |
![]() Eye |
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![]() Eye |
Macula |
![]() Retina |
Retina |
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Retina micrographs |
![]() Photoreceptors (rod cells SEM) |
![]() Photoreceptor Structure |
![]() Rhodopsin |

Lateral Inhibition Schematic (1D; Click for animation)

Lateral Inhibition 2D:
=
Resting;
= Stimulus
(light);
=
Full excitation;
=
Small inhibition;
=
Large inhibition

More Lateral Inhibition Cartoons (Click to see animation) Good for edge and
movement detection!
Vertebrate Systems (Homo sapiens)
Your brain makes it all up! Blind Spot Filler