Chapter 14: Special Sense Organs Of Peripheral Nervous System

Question 1

Major Structures of the Eye

Answer 1

• Pupil
• Iris
• Sclera

Question 2

Acessory Eye Organs

Answer 2

• Muscle
• Fascia
• Eyebrow
• Eyelid
• Conjunctiva

Question 3

Lacrimal Structures

Answer 3

• Lacrimal glands and ducts
• Nasolacrimal sac and duct

Question 4

Functions of Eye Components

cornea

Answer 4

refraction of light

Question 5

Functions of Eye Components

choroid

Answer 5

blood supply

Question 6

Functions of Eye Components

ciliary body

Answer 6

• secretion of vitreous fluid;
• helps change the lens shape

Question 7

Functions of Eye Components

external ocular muscles

Answer 7

movement of the globe

Question 8

Functions of Eye Components

eyelid

Answer 8

protection

Question 9

Functions of Eye Components

iris

Answer 9

controls light entering the
eye through the pupil

Question 10

Functions of Eye Components

lacrimal glands

Answer 10

tear secretion

Question 11

Functions of Eye Components

lens

Answer 11

light refraction

Question 12

Functions of Eye Components

optic nerve

Answer 12

transmits visual info to the brain

Question 13

Functions of Eye Components

retina

Answer 13

• transforms optic signals into nerve impulses
• rods: Distinguish light from dark, percieve shape and movement
  
  • peripheral, night and motion vision
• cones: color vision
  
  • Blue, green, and red
  • Problems:
    
    • Daltonism
    • achromatopsia

Question 14

Functions of Eye Components

sclera

Answer 14

external protection

Question 15

Eye forms

lacrim/o and dacry/o

Answer 15

tear

Question 16

ocul/o

Answer 16

eye

Question 17

opt/o

Answer 17

vision

Question 18

Chrom/o

Answer 18

color

Question 19

Presby/o

Answer 19

old/ old age

Question 20

ton/o

Answer 20

tone or tension

Question 21

opthalmologist vs optometrist

Answer 21

• Opthal: medical physician in eye
• opto: not med physician, but treats visual problems

Question 22

Diagnostic Procedures: Eye

Answer 22

• Test of clearness or sharpness of vision
• (Snellen Chart)
• Assessment of visual fields
• Tonometry
• Ophthalmoscopy
• Slit-lamp examination
• Fluorescein angiography
• Accomodation reflex

Question 23

Ear Word Parts

adenoid/o

Answer 23

adenoids

Question 24

Ear Word Parts

cerumin/o

Answer 24

Ear Wax

Question 25

Ear Word Parts

Aur/o, Auricul/o, Ot/o

Answer 25

Ear

Question 26

Ear Word Parts

Myring/o, Tympan/o

Answer 26

Eardrum

Question 27

Ear Word Parts

Salping/o

Answer 27

Eustachian Tube

Question 28

Ear Word Parts

-ory

Answer 28

pertaining to

Question 29

Disease and Disorder of the Ear

Tinnitus

Answer 29

Ear noise
* earwax
* Meniere disease: chronic inner ear disorder

Question 30

Disease and Disorder of the Ear

Vertigo

Answer 30

dizziness

Question 31

Sensory Organ Receptors

Chemoreceptors

Answer 31

chemical receptors

Question 32

Sensory Organ Receptors

Nociceptors

Answer 32

harm/pain sensors

Question 33

Sensory Organ Receptors

mechanoreceptors

Answer 33

receptors of mechanical activity

Question 34

Sensory Organ Receptors

Photoreceptors

Answer 34

Light sensors

Question 35

Sensory Organ Receptors

Thermoreceptors

Answer 35

Heat sensors

Question 36

Smell

-osmia

Answer 36

• refers to the sense of smell
• anosmia and hyperosmia