Body system · 37 pieces

Sensory organs

Eyes and ears with their internal structures.

Open in the 3D explorer Quiz me on this system Locate structures Flashcards
3D model of the Sensory organs in the Anatomy Nexus anatomy atlas
Interactive 3D model: Sensory organs. Orbit, zoom and click the structures.Load the 3D model

Overview

The eye focuses light through the cornea and lens onto the retina, whose signals travel along the optic nerve to the brain. The model separates the cornea, sclera, choroid, iris, lens, vitreous body and retina, plus the lacrimal apparatus that produces and drains tears and the tarsal plates of the eyelids. The external ear collects sound towards the tympanic membrane; the middle and inner ear are not modelled in this release.

Functions

  • Vision: focusing and detecting light
  • Protecting and lubricating the eye (eyelids, tears)
  • Hearing and balance (ear)

Clinical notes

  • Refractive errors, cataract and glaucoma
  • Retinal detachment and macular degeneration
  • Conjunctivitis and blocked tear ducts

Organs & groups in this system

Eye

The eyeball and its parts: cornea, lens, iris, retina and the tissues that protect and move it.

34 structures

Ear

The external ear gathers sound; the middle and inner ear (not modelled here) convert it to nerve signals and sense balance.

1 structures

All structures 35

37 modelled pieces. Click a structure to open it in the atlas.