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Sense Organs - Coggle Diagram
Sense Organs
General Sense
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Associated with
- skin
- muscles
- joints
- viscera
- touch and pressure sense
- temperature sense
- sense of pain
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Special sense
Sense of Sight
- Eyebrows:
▪ prevent sweat from dripping into the open eyes
- Eyelashes:
▪ Prevent large foreign objects from contacting the anterior surface of the eye.
- Eyelids/palpebrae
▪ protect covering over the surface of the eye
▪ distributes lacrimal fluid
▪ Compose of Tarsal plate (Tp) & glands ,
Skin (S) , Muscles: tarsal, orbicularis oculi (Oo)
- Conjunctiva
▪ A specialized stratified squamous epith.
▪ contains numerous goblet cell
Lacrimal Apparatus
Structures produces, collects,
and drains lacrimal fluid
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Photoreceptor cells
Rods :long, thin
projections at their terminal ends
- Night vision
- Monochromic vision
Cones: short, blunt projections
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Sense of Hearing
External Ear
- Auricle (pinna)
- Ceruminous(ear-wax) glands
- Externalauditory meatus
○ collect sound
Middle Ear
- Tympaniccavity(T)
○ simple squamous to low
cuboidal
- Auditoryossicles
• Malleus (M)
• Incus (I)
• Stapes (S)
- Muscles
• Tensor tympani (Tt)
• Stapedius (Sd)
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Inner Ear
• Abonylabyrinth :cavity
• A membranous labyrinth
: membrane-lined
& fluid-filled tubes contain receptors
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Sense of smell
- Organs of smell/ Olfactory organs
- superior nasal concha
- An olfactory epithelium
○ olfactory receptor cells
○ supporting cells
○ basal cells
○ lamina propria
: olfactory glands
(Bowman glands)
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Sense of Taste
- providesinformation about the foods and liquids
- Taste (gustatory ) receptors
- distributed over
○ lingual papillae
superior surface of
the tongue
○ pharynx
○ larynx
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Circumvallate papillae
– large papillae with taste buds,
glands of von Ebner
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