Anatomy Special Senses

Large Complex sensory organs

• eyelids and conjunctiva

• olfactory epithelium

• taste buds

• eye and ear

Tags

NGSS.MS-LS1-8

Localized clusters of receptors

• Taste Buds

• Olfactory Epithelium

• Eyes

• Ears

Tags

NGSS.MS-LS1-8

What percent of all sensory receptors are in the eyes?

• 20

• 25

• 70

• 50

Each eye has how many nerve fibers that carry info to the brain?

• 1000

• over 1 million

• under 1 million

• 200

Meet at the medial and lateral commissure (canthus)

• Eyelids

• Eyelashes

• Conjunctiva

Tarsal glands produce an oily secretion that lubricates the eye; Ciliary glands are located between these

• Eyelids

• Eyelashes

• Conjunctiva

Membrane that lines the eyelids and eyeball

• Eyelids

• Eyelashes

• Conjunctiva

Six muscles attach to the outer surface of the eye, produce gross eye movements

• Internal eye muscles

• Extrinsic eye mucles

• External eye muscles

The layers that form the wall of the eyeball

• Fibrous layer

• Vascular layer

• Sensory layer

• Tunics

Fluids that fill the interior of the eyeball

• Humors

• Lens

• Cornea

• Tunics