Special sense (Ear &Eye) Flashcards
Regions of the ear
outer ear, middle ear & inner ear
Components of the inner ear
bony labyrinth and membranous labyrinth
What does the membranous labyrinth contains?
Endolymph
What does the bony labyrinth contain?
Perilymph
Parts of the bony Labyrinth?
The cochlea, semicircular canals and vestibule
Cochlea
- Spiral shaped structure
- Organ of corti
Organ of Corti
Receptors for hearing are located within the organ of corti
Where are the receptors for movement located?
Semicircular canals
Crista ampullaris
Receptor for movement
What does the vestibule contain ?
Utricle and saccule
Where are the receptors for position located ?
Within the utricle and saccule
What are the layers of the eyeball?
Innermost = retina
middle =uvea
Outer layer = sclera and cornea
How many layers of the retina are there ?
10
What does he retina contain?
receptor cells, neurons, pigmented epithelium and supporting cells.
What is the retina consist of?
The rods, cones, bipolar cells, ganglion cells, horizontal cells, and amacrine cells.
What are the receptors for vision?
Rods & Cones