238 results found

Search Results for: eye

Eye ointment

Eye ointment --> ophthalmic ointment a special ointment for application to the eye that must be free from particles and... Read More

Blindness – Evolutionary regression? Maybe not!

The recent Netflix's hit flick, Bird Box, surely startled the viewers with the thrilling scenarios revolving around the... Read More

Appendages of eye

Appendages of eye --> accessory organs of the eye The eyelids, with lashes and eyebrows, lacrimal apparatus, conjunctival... Read More

Complete dominance

Complete Dominance Definition Genetics is the study of how traits are inherited by organisms and in what ways these... Read More

Eye

Definition noun, plural: eyes (1) The organ of sight or vision; the visual sense; the sense of seeing. (2) A mark... Read More

Polygenic inheritance

Polygenic inheritance refers to the kind of inheritance in which the trait is produced from the cumulative effects of many... Read More

Reduced eye

reduced eye A simplified design of the ocular optical system, represented as having a single refracting surface and a... Read More

Quadrantanopia

Definition noun, plural: quadrantanopias A visual field defect characterized by a loss of vision in a quarter section of the... Read More

Sensory Systems

A sensory system is a part of the nervous system consisting of sensory receptors that receive stimuli from the internal and... Read More

Saline solution

Saline Solution Definition Saline solution is one the most medically-used solution, which contains sodium chloride... Read More

Law of Independent Assortment

Law of Independent Assortment Definition The Mendelian inheritance principles are derived from and named after the monk,... Read More

Equator of eyeball

Equator of eyeball An imaginary line encircling the globe of the eye equidistant from the anterior and posterior... Read More

Evolution

Evolution Definition Evolution is defined as a change in the genetic composition of a population over successive... Read More

Pupil

pupil 1. A youth or scholar of either sex under the care of an instructor or tutor. Too far in years to be a pupil now.... Read More

Pleiotropy

Pleiotropy Definition When one single gene starts affecting multiple traits of living organisms, this phenomenon is known... Read More

Consciousness and Behavior

States of Consciousness Defined either by (1) behavior - ranging from attentive and alert to coma and (2) electrical... Read More

Smooth muscle

The smooth muscle can be described as a type of muscle in the human body that is non-striated and involuntary in action.... Read More

Lateral canthus

Definition noun, plural: lateral canthi The lateral angle or corner of the eye where the upper and lower eyelids... Read More

Monocular vision

Definition noun (1) (zoology) A type of vision in which one eye of the animal moves and sees objects independently of the... Read More

Human Perception – Neurology

A better understanding of human perception unlocks the key to how the mind works, an advantage when working with people with... Read More

Tapetum lucidum

Definition noun, plural: tapeta lucida A layer of tissue in the choroid or in the retinal pigment epithelium of the eye of... Read More

Incomplete dominance

Incomplete Dominance Definition After Gregor Mendel discovered inheritance laws, the term ''incomplete dominance'' was... Read More

Polygenic trait

Polygenic Trait Definition Polygenic trait refers to a trait that is controlled by multiple non-allelic genes. These genes... Read More

Involuntary muscle

A muscle act typically either under the control of the will or without conscious control. Muscles that can be controlled at... Read More

Accommodation reflex

Definition noun, plural: accommodation reflexes A reflex reaction of the eye in response to focusing on near object followed... Read More

Homologous chromosome

A homologous chromosome pertains to one of a pair of chromosomes with the same gene sequence, loci, chromosomal length, and... Read More

Medial canthus

Definition noun, plural: medial canthi The medial angle or corner of the eye where the upper and lower eyelids... Read More

Cornea

Cornea (Science: anatomy, ophthalmology) The transparent structure forming the anterior part of the fibrous tunic of the... Read More

Xerophthalmia

Definition noun Excessive dryness of the cornea and conjunctiva Supplement The dryness of the eyes is associated with the... Read More

Aqueous humor

Definition noun, plural: aqueous humors A clear, watery body fluid secreted by the ciliary epithelium, and fills the... Read More

Ocular

Definition noun, plural: oculars Eyepiece of the microscope; the lens at the end of certain optical instruments (e.g.... Read More

Parallax

parallax 1. The apparent displacement, or difference of position, of an object, as seen from two different stations, or... Read More

Dominant

Dominant Definition The word dominant or dominant trait is commonly used in biology. The general meaning of dominant is to... Read More

Sty

sty (Science: medicine) An inflamed swelling or boil on the edge of the eyelid. Alternative forms: stye. Origin: For older... Read More

Young-helmholtz theory of colour vision

'''Young-helmholtz theory of color vision A theory that there are three perceiving elements in the retina: red, green, and... Read More

Orbits

orbit 1. (Science: astronomy) The path described by a heavenly body in its periodical revolution around another body; as,... Read More

Accommodation

Accomodation, in general sense, may refer to the dwelling or a transient lodging. In biology, it refers to an adjustment or... Read More

Sense organ

Definition noun, plural: sense organs An organ or structure that has nerve endings capable of detecting and reacting to a... Read More

Naked

naked 1. Having no clothes on; uncovered; nude; bare; as, a naked body; a naked limb; a naked sword. 2. Having no means of... Read More

Cross-linking

Cross-linking Definition Cross-linking, in general, means the forming of cross-links between the joining structures. In... Read More