Eyes, Ears & Nose Senses

Question 1

Parts of the Eyes, Ears & Nose Senses

Answer 1

Eyes, Ears & Nose Senses

Nervous System

• Taste
• Smell
• Vision
• Balance
• Hearing

Question 2

Eyes

Answer 2

Eyes, Ears & Nose Senses

- Organ of Vision
   Consists of 3 layers
      - Sclera
      - Retina
      - Choroid

• Muscles- supplied by the oculomotor; trochlear and abducens cranial nerves.
• Bathed in tears produced by lacrimal glands (tear ducts).

Question 3

Iris

Answer 3

Eyes, Ears & Nose Senses

• Colored part of the eye consisting of smooth muscle that regulates the amount of light that enters through the pupil.

Question 4

Lens

Answer 4

Eyes, Ears & Nose Senses

• Biconvex, transparent structure that sits behind the pupil of the eye and flexes to accommodate vision of images that are near and distant.

Question 5

Pupil

Answer 5

Eyes, Ears & Nose Senses

• Central opening on the iris of the eye function.
• Constrict when exposed to light and to dilate when exposed to the dark

Question 6

Cornea

Answer 6

Eyes, Ears & Nose Senses

-Transparent, anterior portion of the sclera that is the first part of the eye that refracts light to facilitate vision.

Question 7

Optic Nerves

Answer 7

Eyes, Ears & Nose Senses

• Second Pair of Cranial nerves
• carry Visual impulses from the rod and cones to the brain.

Question 8

Retina

Answer 8

Eyes, Ears & Nose Senses

• Innermost layer of the eye that receives images transmitted through the lens and contains the receptors for vision.

Question 9

Sclera

Answer 9

Eyes, Ears & Nose Senses

• Outer layer of the eyeball made of fibrous tissue, usually considered the white part of the eye.
• Responsible for maintaining the shape of the eye.

Question 10

Aqueous Humor

Answer 10

Eyes, Ears & Nose Senses

• Transparent liquid contained in the anterior and posterior of the eye.