Special sense (Ear &Eye)

Question 1

Regions of the ear

Answer 1

outer ear, middle ear & inner ear

Question 2

Components of the inner ear

Answer 2

bony labyrinth and membranous labyrinth

Question 3

What does the membranous labyrinth contains?

Answer 3

Endolymph

Question 4

What does the bony labyrinth contain?

Answer 4

Perilymph

Question 5

Parts of the bony Labyrinth?

Answer 5

The cochlea, semicircular canals and vestibule

Question 6

Cochlea

Answer 6

• Spiral shaped structure

- Organ of corti

Question 7

Organ of Corti

Answer 7

Receptors for hearing are located within the organ of corti

Question 8

Where are the receptors for movement located?

Answer 8

Semicircular canals

Question 9

Crista ampullaris

Answer 9

Receptor for movement

Question 10

What does the vestibule contain ?

Answer 10

Utricle and saccule

Question 11

Where are the receptors for position located ?

Answer 11

Within the utricle and saccule

Question 12

What are the layers of the eyeball?

Answer 12

Innermost = retina
middle =uvea
Outer layer = sclera and cornea

Question 13

How many layers of the retina are there ?

Answer 13

10

Question 14

What does he retina contain?

Answer 14

receptor cells, neurons, pigmented epithelium and supporting cells.

Question 15

What is the retina consist of?

Answer 15

The rods, cones, bipolar cells, ganglion cells, horizontal cells, and amacrine cells.

Question 16

What are the receptors for vision?

Answer 16

Rods & Cones

Question 17

Rods

Answer 17

• Located on the periphery

- not color sensitive

Question 18

Cones

Answer 18

• Color sensitive

- i.e receptors for color

Question 19

Muller Cells

Answer 19

Part of the retina

Question 20

Ora serrata

Answer 20

Anterior pigmented portion of the retina

Question 21

Where are bipolar neurons found?

Answer 21

found in the retina, inner ear, and the region of the nose involved with smell.

Question 22

Fovea Centralis

Answer 22

• Site for maximal visual acuity
• only cone cells
• part of the retina

Question 23

Uvea

Answer 23

-Consists of the iris, choroid and ciliary body

Question 24

Iris

Answer 24

• Anterior part of the uvea

- colored part of the eyes

Question 25

Choroid

Answer 25

-Vascular pigmented structure of the uvea

Question 26

Lamina Vitrea

Answer 26

- inner layer of the choroid | - Also referred to as Bruch's membrane

Question 27

Ciliary body

Answer 27

Thickening in the uvea | -contains the ciliary muscle which is within the ciliary body

Question 28

Ciliary muscle

Answer 28

Adjusts the shape of the lens

Question 29

Sclera

Answer 29

Composed of primarily collagen fibers | -White of the eye

Question 30

Cornea

Answer 30

- Transparent - avascular - composed primarily pf collagen fibers

Question 31

Five layers to he cornea

Answer 31

epithelium, Bowman's membrane, substantia propria, Descemet's membrane, and endothelium.

Question 32

Acellular

Answer 32

Bowman's membrane and Descemet's membrane

Question 33

Where s majority of the cornea from?

Answer 33

Substantia propria

Question 34

what is the surface of the cornea covered by ?

Answer 34

non keratinized stratified squamous epithelium.

Question 35

Lamina Cribrosa

Answer 35

small openings within the sclera where the fibers forming the optic nerve travel through

Question 36

The glands of Moll in the eyelid

Answer 36

Apocrine sweat glands

Question 37

Optic chiasm

Answer 37

- X shaped | - two optic nerves join

Question 38

Optic disc

Answer 38

- The site where the optic nerve leaves the eyeball | - Anatomical blind spot

Question 39

Virtual cavity

Answer 39

Area behind the lens

Question 40

what separates the two chambers?

Answer 40

Iris

Question 41

Zonular fibers

Answer 41

Suspensory ligaments of the lens

Question 42

Aqueous Humor

Answer 42

Collected from the anterior chamber via the canal of Schlemm