Special Senses

• What are special senses?

  Smell, Taste, Sight, Hearing
• Palpebral Fissure - the space between the eyelids in an open eye
• Medial and Lateral Commissure - corners of the eye
• Eyelashes - projecting from the border of each eyelid
• Tarsal Glands - modified sebaceous glands, that produce an oily secretion that lubricates the eye
• Ciliary Glands - modified sweat glands, lie between the eyelashes
• Conjunctiva - a delicate membrane, lines the eyelids and covers part of the outer surface of the eyeball
• Conjunctiva - secretes mucus, which helps to lubricate the eyeball and keep it moist
• Lacrimal Glands - they continually release a dilute salt solution onto the anterior surface of the eyeball
• Tears - dilute salt solution
• The tears flush across the eyeball into the lacrimal canaliculi medially, then into the lacrimal sac, and finally into the nasolacrimal duct, which empties into the nasal cavity.