Category: E

Part of womb lining enclosing fertilized egg. The portion of the endometrium that covers the implanted early embryo.  

Enlargement of heart.  

In biology, a pigmented area that is sensitive to light.  

A second series of lenses that magnifies the primary image, producing the image that is projected to the retina of the eye and recorded by the optic nerve. The part of an optical instrument, such as a microscope, that is nearest to the eye of the examiner. The portion of an optical device closest to…

A reflex jerking of the head in infancy in response to light.    

Protrusion of the navel.  

The instinctive motion of the tongue by which infants push food out of their mouths. An infantile reflex in which the tongue moves outward after it has been touched. It is present from birth to 4 months.  

Reward that is received from an external source as the result of a person’s behavior or action.  

Extrinsic reward.  

In type theory a person whose personality is oriented outward, requiring continual stimulation from the social environment, introvert. A person whose interests turn outward. A person who is interested in people and things in the external world. A personality type that is primarily concerned with and focused on external objects and actions and other people.…