Question

In: Anatomy and Physiology

1) What are the accessory structures of the eye? 2) List the structures that are in...

1) What are the accessory structures of the eye?

2) List the structures that are in each layer of the intrinsic eye.

3) List the pathway for vision.

Solutions

Expert Solution

Answer

1) The accessory stuctures of the eye include :

  • Lacrimal glands
  • Eyelids
  • Eyebrows
  • Conjunctiva


2) Structures in layers of intrinsic eye :

There are three layers of eye :

a) Fibrous tunic

  • Sclera and cornea
    - Lamina cribrosa, Anterior and posterior scleral foramen, scleral splur, sclerotic ring.


b) Vascular tunic :

  • Choroid layer : Bruch's membrane, middle stroma, suprachoroid.
  • Ciliary body
  • Lens
  • Aqueous humor
  • Iris
  • Pupil

c) Neural tunic :

  • Retina layer
  • Optic disc

3) Pathway for vision :

  • Cornea Aqueous humor Pupil Lens Vitreous humor Retina Photoceptor cells Bipolar neuron Ganglion cells Optic nerve Optic chiasm Optic tract Lateral geniculate nuclei of thalamus Optic radiations Primary visual cortex in occipital lobe.

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