Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
61 Cards in this Set
- Front
- Back
|
The adult eyeball measures?
|
2.5cm in diameter
|
|
|
The wall of the eyeball is constructed of three layers;
|
Fibrous tunic
Vascular tunic Retinaor nervous tunic |
|
|
The vascular tunic of the eye has 3 parts
|
Choroid
Ciliary body Iris |
|
|
The Fibrous Tunic consists of :
|
Anterior cornea
Posterior sclera |
|
|
Anterior Cornea is a?
|
Non-vascular
transparent coat that covers the coloured irs Helps focus the light due to its curve |
|
|
What is the outer survace of the anterior cornea?
|
Non-keratinized stratified squarmous epithelium
|
|
|
What is the middle coat of the Anterior (front) Cornea?
|
Collagen fibres and fibroblasts
|
|
|
Simple squamous epithelium of the Anterior Cornea is?
|
Inner surface Cornea
|
|
|
The Posterior Sclera is what colour?
|
White
|
|
|
The Posterior (back) Sclera or white of the eye is made of what type of tissue
|
connective tissue
|
|
|
The Sclera or white of the eye is made of
|
connective tissue made of mostly collagen fibres and fibroblasts.
Except for the cornea |
|
|
Shape, rigidity and protects the sclera?
|
Connective tissue
Collagen fibres fibroblasts |
|
|
What is the vascular tunic/uvea
|
Middle layer of the eyeball
|
|
|
How many portions does the vascular or middle layer of the eyeball have?
|
3
Choroid Ciliary body Iris |
|
|
What does the choroid do?
|
Middle layer of the eyeball.
Lines internal surface of the sclera. Provides nutrient to posterior retina. |
|
|
Function of eye?
|
Lubricate
Cleanse Protect |
|
|
Fibrous tunic - superficial coat of the eyeball and consist of ?
|
Cornea (anteriorly)
Sclera (posteriorly) |
|
|
Cornea (anteriorly)
|
Transparent, avascular coat.
Covers the iris. Curved, helps to focus light on the retina |
|
|
Sclera (posteriorly)
|
White part of the eye
Dense, connective tissue. Covers the entire eyeball except the cornea. Rigidity gives shape Protects |
|
|
Sclera?
|
The sclera is Choroid
|
|
|
Sclera?
|
Vascularized
Blood vessels supply nutrients to the posterior surface of the retina. Melanocytes in choroid produce melanin. Gives the choroid black appearance Absorbs light. Prevents scattering of light in retina |
|
|
Iris is?
|
The pupillary sphincter
|
|
|
Bright light muscles contract decreasing?
(circular muscles) |
the size of the pupil.
|
|
|
In light - muscles dilate, increasing ?
(radial muscles) |
size of the pupil.
|
|
|
Iris is responsible for ?
|
colour of eye
|
|
|
Rods?
|
Black and white vision.
|
|
|
Cones?
|
Colour vision
|
|
|
Highest concentration of cones ?
|
Central fovea
|
|
|
Lense sits just behind ?
|
Iris
|
|
|
Suspensory ligaments?
|
lens in place
|
|
|
Anterior cavity is?
|
Acuous humour
|
|
|
Anterior & posterior chamber & ducts are pressed from pressure?
|
Glaucoma
|
|
|
Vitreous chamber is between the lens &?
|
Retina
|
|
|
Which part of the retina has the highest concentration of rods?
|
Periphery of Retina
|
|
|
What are the name of the muscles that move your eyes?
|
Intrinsic eye muscles
|
|
|
Ignatz Von Peczely - Hungary
Liljequist - Austria Schlegel - Germany Felke - Germany Lane - Austria |
1850-1940
|
|
|
Dr Collins - USA
Lindlahr - USA |
1900 - 1950
|
|
|
Angerer
Dr Deck Kriege Bernard Jensen Dr Ferrandiz - Spain Dorothy Hall - Australia |
1950 - 2000
|
|
|
Limitations of iridology
|
No definate diagnosis of disease name
No measurements No sex No Time or cause No Cause of death |
|
|
Scope
|
Strength or weakness
Under / over function Hyper/hypo Potential problem due to under/over Congestion |
|
|
1st Major Zone
Closest to pupil |
Digestion Zone
|
|
|
2nd Major Zone
|
Muscles
Bones Organs of fluid distribution |
|
|
3rd Major Zone
|
Absorption
& Elimination |
|
|
1st minor Zone
|
Pupillary edge
CNS Stomach |
|
|
2nd minor zone
|
Intestines
Digestion Absorption |
|
|
The 3 cell types that contain pigments within the iris?
|
Stromal melanocytes
Iris pigment epithelium Clump cells |
|
|
Newborns have what colour eyes?
|
Blue
|
|
|
5 stages of tisue activity
|
Acut
Sub acute Slowing down Hypocactive Chronic Degenerative |
|
|
Actue Colour
|
White
|
|
|
White indicates
|
Inflammation
Uric acid crystalline |
|
|
Yellow /white indicates
|
sub acute
|
|
|
Yellow indicates
|
slowing down
|
|
|
Grey indicates
|
Hypoactive
|
|
|
Brown
|
Chronic
|
|
|
Black
|
Degeneration
|
|
|
White - Acute Stage indicates?
|
Inflammation
The whiter the more acute Uric acid Arteriosclerosis Cholesterol Excess salt Rigidity - hardening personality |
|
|
Yellow-White - Sub Acute stage indicates?
|
Hormone, enzyme & digestive increase
Eliminative process more active Fatique, thirst, low resistance Sensitivity to stress |
|
|
Yellow - slowing down indicates
|
Kidney disturbance
Toxins collect Metabolism slowing |
|
|
Grey - Hypoactive stage
|
Low digestive juices
Poor vitality Elimination slows Metabolism slows |
|
|
Brown - chronic stage indicates
|
Liver toxicity
toxic accumulation low oxygen Symptoms - exhaustion, weak immunity |
|
|
Black - degenerative stage indicates
|
Final destruction of nerve fibres
Accidents Degenerated tissue Advanced stage of chronic disease |
