Encyclopedia - Eye: Encyclopedia Ii - Eye - Anatomy
The structure of the mammalian eye owes itself completely to the task of focusing light onto the retina. All of the individual components...   » Read the article

Encyclopedia - Iris Anatomy: Encyclopedia Ii - Iris Anatomy - Red Eye
When photographed with a flash, the iris only reacts to protect the retina, and not fast enough to avoid the red-eye effect. This represe...   » Read the article

Encyclopedia - Iris Anatomy: Encyclopedia Ii - Iris Anatomy - Color
The iris is usually strongly pigmented, with colors ranging from brown to green, blue, grey, and hazel. Occasionally its color is due to ...   » Read the article

Encyclopedia - Eye: Encyclopedia - Eye
An eye is an organ that detects light. Different kinds of light-sensitive organs are found in a variety of creatures. The simplest eyes d...   » Read the article

Encyclopedia - Eye: Encyclopedia Ii - Eye - Diseases, Disorders, And Age-related Changes
There are many diseases and disorders that may affect the eyes. As the eye ages certain changes occur that can be attributed to solely th...   » Read the article

Encyclopedia - Eye: Encyclopedia Ii - Eye - Evolution Of Eyes
How a complex structure like the projecting eye could have evolved is often said to be a difficult question for the theory of evolution. ...   » Read the article

Encyclopedia - Eye: Encyclopedia Ii - Eye - Varieties Of Eyes
In most vertebrates and some mollusks the eye works by allowing light to enter it and project onto a light-sensitive panel of cells know...   » Read the article

Encyclopedia - Eye: Encyclopedia Ii - Eye - Anatomy
The structure of the mammalian eye owes itself completely to the task of focusing light onto the retina. All of the individual components...   » Read the article

Encyclopedia - Eye: Encyclopedia Ii - Eye - Eye Movement
Animals with compound eyes have a wide field of vision, allowing them to look in many directions. To see more, they have to move their en...   » Read the article

Encyclopedia - Eye: Encyclopedia Ii - Eye - Acuity
Visual acuity can be measured with several different metrics. Cycles per degree (CPD) measures how much an eye can differentiate one obje...   » Read the article

Encyclopedia - Eye: Encyclopedia Ii - Eye - Adnexa And Related Parts
Eye - The orbit. In many species, the eyes are inset in the portion of the skull known as the orbits or eyesockets. This placement of t...   » Read the article

Encyclopedia - Eye: Encyclopedia Ii - Eye - Cytology
The retina contains two forms of photosensitive cells - rods and cones. Though structurally and metabolically similar, their function is ...   » Read the article

Encyclopedia - Eye: Encyclopedia - Eye
An eye is an organ that detects light. Different kinds of light-sensitive organs are found in a variety of creatures. The simplest eyes d...   » Read the article

Encyclopedia - Lens Anatomy: Encyclopedia - Lens Anatomy
The lens or crystalline lens is a transparent, biconvex structure in the eye that, along with the cornea, helps to refract light to focus...   » Read the article

Encyclopedia - Accommodation Eye: Encyclopedia - Accommodation Eye
Accommodation is the process by which the eye increases optical power to maintain a clear image (focus). See also. Accommodation refle...   » Read the article

Encyclopedia - Face: Encyclopedia - Face
The face is the front part of the human head from forehead to chin including the head, hair, forehead, eyebrow, eyes, nose, cheek, mouth,...   » Read the article

Encyclopedia - Fish Anatomy: Encyclopedia - Fish Anatomy
Fish anatomy is primarily governed by the physical characteristics of water, which is much denser than air, holds a relatively small amou...   » Read the article

Encyclopedia - Head: Encyclopedia - Head
In anatomy, the head of an animal is the anterior part (from anatomical position) that comprises the mouth, the brain and various sensory...   » Read the article

Encyclopedia - Ophthalmology: Encyclopedia - Ophthalmology
Ophthalmology is the branch of medicine which deals with the diseases of the eye and their treatment. The word ophthalmology comes from t...   » Read the article

Encyclopedia - Anatomical Position: Encyclopedia - Anatomical Position
The anatomical position is a schematic convention for describing the relative morphology of the human body. All terms in the study of ana...   » Read the article

Encyclopedia - Forehead: Encyclopedia - Forehead
In human anatomy, the forehead or brow is the bony vertical part of the head above the eyes. Muscles of the forehead include the frontali...   » Read the article

Encyclopedia - Blind Spot Anatomy: Encyclopedia - Blind Spot Anatomy
In anatomy, the blind spot is the region of the retina where the optic nerve and blood vessels pass through to connect to the back of the...   » Read the article

Encyclopedia - Iris: Encyclopedia - Iris
Iris has three main meanings, unrelated except for their derivation from the Greek word for rainbow: Iris (mythology), a messenger of th...   » Read the article

Encyclopedia - Canine Tooth: Encyclopedia - Canine Tooth
In oral anatomy, the canine teeth, also called cuspids, dogteeth, fangs, or (in the case of those of the upper jaw) eye teeth, are relati...   » Read the article

Encyclopedia - Asian Giant Hornet: Encyclopedia - Asian Giant Hornet
The Asian giant hornet (Vespa mandarinia), the world's largest hornet, is a native of temperate and tropical Eastern Asia. Its body lengt...   » Read the article

Encyclopedia - Eyelid: Encyclopedia Ii - Eyelid - Types
In humans, each eye has an upper and lower eyelid which operate as a pair, however, it is primarily the upper eyelid that moves across th...   » Read the article

Encyclopedia - Eyelid: Encyclopedia Ii - Eyelid - Usage
When an eye becomes dry, closing the eyelid and opening it again rapidly — referred to as "blinking" — can help to spread moisture ac...   » Read the article

Encyclopedia - Face: Encyclopedia Ii - Face - Health
In order to keep a face clean and healthy from disease, healthcare is required such as washing and showering of the face using water and ...   » Read the article

Encyclopedia - Face: Encyclopedia Ii - Face - Anatomy
On the front of the facepiece a line drawn down from the supraorbital notch between the bicuspid teeth to the side of the chin will cut t...   » Read the article

Encyclopedia - Iris Anatomy: Encyclopedia Ii - Iris Anatomy - General Structure
The iris is divided into two major regions: The pupillary zone is the inner region whose edge forms the boundary of the pupil. The cilia...   » Read the article

Encyclopedia - Eyelid: Encyclopedia Ii - Eyelid - Anatomy
Eyelid - Innervation. In humans, the ophthalmic branch of the trigeminal nerve provides sensation to the upper eyelid and the maxillary...   » Read the article

Encyclopedia - Dog Anatomy: Encyclopedia Ii - Dog Anatomy - Puppy Characteristics
Puppies often have characteristics that do not last beyond early puppyhood. Eye color often changes from blue to its adult color as the p...   » Read the article

Encyclopedia - Decapod Anatomy: Encyclopedia Ii - Decapod Anatomy - Cephalothorax
Decapod anatomy - Head. antennules antennae mandibles first maxillae second maxillae The head also bears the (usually stalked) compou...   » Read the article

Encyclopedia - Fish Anatomy: Encyclopedia Ii - Fish Anatomy - Body
Nearly all fish have a streamlined body, which is divided into head, trunk, and tail, although the dividing points are not always externa...   » Read the article

Encyclopedia - Vahnatai: Encyclopedia Ii - Vahnatai - Anatomy
The physical anatomy of the Vahnatai is quite similar in many ways to that of the classic "little green men" of science fiction (Though m...   » Read the article

Encyclopedia - Head: Encyclopedia Ii - Head - Anatomy
The front (ventrum) of the head, where the eyes and ears and mouth are located, is called the face. The area above the eyes is called the...   » Read the article

Encyclopedia - Head: Encyclopedia Ii - Head - Cultural Import
People who are more intelligent than normal are sometimes depicted in cartoons as having bigger heads, as a way of indicating that they ...   » Read the article

Encyclopedia - Ophthalmology: Encyclopedia Ii - Ophthalmology - History Of Ophthalmology
The eye, including its structure and mechanism, has fascinated scientists and the public in general since ancient times. The discovery of...   » Read the article

Encyclopedia - Optic Nerve: Encyclopedia Ii - Optic Nerve - Physiology
The optic nerve contains 1.2 million nerve fibers. This number is low compared to the roughly 130 million receptors in the retina, and im...   » Read the article

Encyclopedia - Oculomotor Nerve: Encyclopedia Ii - Oculomotor Nerve - Testing The Oculomotor Nerve
Cranial nerves III, IV and VI are usually tested together. The examiner typically instructs the patient to hold his head still and follow...   » Read the article

Encyclopedia - Sea Star: Encyclopedia Ii - Sea Star - External Anatomy
Sea stars are composed of a central disc with (usually) five arms exhibiting pentaradial symmetry. The mouth is located underneath the se...   » Read the article

Encyclopedia - Drone Bee: Encyclopedia Ii - Drone Bee - Anatomy
Drones are characterized by eyes that are twice the size of those of worker bees and queens, and a body size greater than that of worker ...   » Read the article

Encyclopedia - Mollusk: Encyclopedia Ii - Mollusk - Anatomy
Molluscs are triploblastic protostomes. The principal body cavity is a blood-filled hemocoel. They have a true coelom; however, it is red...   » Read the article

Encyclopedia - Wraith Stargate: Encyclopedia Ii - Wraith Stargate - Biology
Wraith Stargate - Anatomy and physiology. The Wraith are characterized by a pale blue or light-green epidermis, yellow eyes, and white,...   » Read the article

Encyclopedia - Conch: Encyclopedia Ii - Conch - Anatomy
Conches have spirally constructed shells. Depending on species (or aberrant growth patterns), shell growth can be sinistral (left-handed)...   » Read the article

Encyclopedia - Asian Giant Hornet: Encyclopedia Ii - Asian Giant Hornet - Anatomy
The head of the hornet is orange and quite wide in comparison to other hornet species. The compound eyes and ocelli are dark brown, and t...   » Read the article

Encyclopedia - Whale Shark: Encyclopedia Ii - Whale Shark - Anatomy And Appearance
The greatest size accurately recorded was 12 meters (39 ft) long, with unofficial accounts of 18 meters (59 ft). It is not to be confused...   » Read the article

Encyclopedia - Visual Loss: Encyclopedia Ii - Visual Loss - Acute Visual Loss
Acute visual loss may be dramatic in presentation, and is almost always alarming to the person experiencing the loss. It may be caused by...   » Read the article

Encyclopedia - Kiss: Encyclopedia Ii - Kiss - Other Uses
The term is also used for expressions of affection that do not involve the lips. The "Eskimo Kiss" is executed by the two individuals gen...   » Read the article

Encyclopedia - Facial Nerve: Encyclopedia Ii - Facial Nerve - Testing The Facial Nerve
Voluntary facial movements, such as wrinkling the brow, showing teeth, frowning, closing the eyes tightly, pursing the lips and puffing o...   » Read the article

Encyclopedia - Drone Bee: Encyclopedia Ii - Drone Bee - Role
Their main function in the hive is to be ready to fertilize a receptive queen. Mating occurs in flight, which accounts for the need of th...   » Read the article

Encyclopedia - Meerkat: Encyclopedia Ii - Meerkat - Anatomy
The meerkat is a small diurnal herpestid whose weight averages approximately 731 grams (males) and 720 grams (females), with long and sle...   » Read the article

Encyclopedia - Camarasaurus: Encyclopedia Ii - Camarasaurus - Anatomy
The main feature of interest is its skull. The skull was remarkably square and the blunt snout had many holes, though it was sturdy and f...   » Read the article

Encyclopedia - Uvea: Encyclopedia Ii - Uvea - Physiology
The prime functions of the uveal tract as a unit are: 1. nutrition and gas exchange. Uveal vessels directly perfuse the ciliary body and ...   » Read the article

Encyclopedia - Ayurveda: Encyclopedia Ii - Ayurveda - Basic Concepts And Methodology
Traditonal Āyurveda speaks of eight branches: kāyāchikitsā (internal medicine), shalyachikitsā (surgery including anatomy), shālāk...   » Read the article

Encyclopedia - Batoidea: Encyclopedia Ii - Batoidea - Anatomy
Batoids are flat-bodied, and, like sharks, are a species of cartilaginous marine fish, meaning they have a boneless skeleton made of a to...   » Read the article

Encyclopedia - Horse: Encyclopedia Ii - Horse - Natural History Of The Horse
In nature, horses function as prey animals. They have a natural tendency to flee from danger, though they will fight if cornered. Their e...   » Read the article

Encyclopedia - Horse: Encyclopedia Ii - Horse - Horse Behavior
In nature, horses function as prey animals. They have a natural tendency to flee from danger, though they will fight if cornered. Their e...   » Read the article

Dictionary - Ayurveda: Health And Healing Dictionary On Ayurveda
Ayurveda: (ancient Indian medicine, Vedic medicine): Ancient Hindu medical-metaphysical healing science based on the harmony of body, ...   » Read the article

Dictionary - Ayurveda: Alternative Health Dictionary On Ayurveda
Ayurveda (Ayurveda Medicine, Ayurvedic healing, Ayurvedic healthcare, Ayurvedic medicine, ayurvedism, Indian medicine, Science of Long...   » Read the article

Dictionary - Pineal Gland, Conarium, Epiphysis Cerebri: Spiritual - Theosophy Dictionary On Pineal Gland, Conarium, Epiphysis Cerebri
Pineal Gland, Conarium, or Epiphysis Cerebri A small organ in the brain with a fancied resemblance to a pine cone; technically called ...   » Read the article

Encyclopedia - Eye: Encyclopedia Ii - Eye - Evolution Of Eyes
How a complex structure like the projecting eye could have evolved is often said to be a difficult question for the theory of evolution. ...   » Read the article

Encyclopedia - Eye: Encyclopedia Ii - Eye - Adnexa And Related Parts
Eye - The orbit. In many species, the eyes are inset in the portion of the skull known as the orbits or eyesockets. This placement of t...   » Read the article

Encyclopedia - Eye: Encyclopedia Ii - Eye - Adnexa And Related Parts
Eye - The orbit. In many species, the eyes are inset in the portion of the skull known as the orbits or eyesockets. This placement of t...   » Read the article

Encyclopedia - Eye: Encyclopedia Ii - Eye - Varieties Of Eyes
In most vertebrates and some mollusks the eye works by allowing light to enter it and project onto a light-sensitive panel of cells know...   » Read the article

Encyclopedia - Eye: Encyclopedia Ii - Eye - Varieties Of Eyes
In most vertebrates and some mollusks the eye works by allowing light to enter it and project onto a light-sensitive panel of cells known...   » Read the article

Encyclopedia - Eye: Encyclopedia Ii - Eye - Diseases Disorders And Age-related Changes
There are many diseases and disorders that may affect the eyes. As the eye ages certain changes occur that can be attributed to solely th...   » Read the article

Encyclopedia - Eye: Encyclopedia Ii - Eye - Diseases Disorders And Age-related Changes
Main articles: List of eye diseases and disorders and Ocular manifestations of systemic disease There are many diseases and disorders tha...   » Read the article

Encyclopedia - Eye: Encyclopedia Ii - Eye - Eye Movement
Animals with compound eyes have a wide field of vision, allowing them to look in many directions. To see more, they have to move their en...   » Read the article

Encyclopedia - Eye: Encyclopedia Ii - Eye - Acuity
Visual acuity can be measured with several different metrics. Cycles per degree (CPD) measures how much an eye can differentiate one obje...   » Read the article

Encyclopedia - Eye: Encyclopedia Ii - Eye - Cytology
The retina contains two forms of photosensitive cells - rods and cones. Though structurally and metabolically similar, their function is ...   » Read the article

Article - Popular Pages Sitemap V - E
This is a sitemap for Popular Pages V - E . Click on a link and you will find multiple definitions and articles related to the word. &...   » Read the article

Article - Popular Pages Sitemap Iv - E
This is a sitemap for Popular Pages IV - E . Click on a link and you will find multiple definitions and articles related to the word. ...   » Read the article

Article - Popular Pages Sitemap V - B
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Article - Popular Pages Sitemap Iv - B
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Article - Popular Pages Sitemap V - H
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Article - Popular Pages Sitemap Iii - A
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Article - Popular Pages Sitemap Vi - D
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Article - Popular Pages Sitemap Iii - M
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Article - Popular Pages Sitemap Vi - C
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Article - Oceanography Sitemap I - A-z
This is a sitemap for Oceanography - A-Z . Click on a link and you will find multiple definitions and articles related to the word. Th...   » Read the article

Article - Popular Pages Sitemap Viii - E
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