Shared Flashcard Set

Details

Chapter 8 Group 5
61-75
15
Anatomy
11th Grade
01/09/2012

Additional Anatomy Flashcards

 


 

Cards

Term
DIVERGE
Definition
LIGHT SPREADS OUT
Term
ACCOMODATION
Definition
THE ABILITY OF THE EYE TO FOCUS SPECIFICALLY ON CLOSE OBJECTS (LESS THAN 20 FEET AWAY)
Term
OPTIC CHIASM
Definition
THE PLACE WHERE THE FIBERS FROM THE MEDIAL SIDE OF EACH EYE CROSS OVER TO THE OPPOSITE SIDE OF THE BRAIN.
Term
OPTIC TRACTS
Definition
IT IS A CONTINUATION OF THE OPTIC NERVE AND RUNS FROM THE OPTIC CHIASM (WHERE HALF OF THE INFORMATION FROM EACH EYE CROSSES SIDES, AND HALF STAYS ON THE SAME SIDE) TO THE LATERAL GENICULATE NUCLEUS.
Term
OPTIC RADIATION
Definition
 THE MASSIVE FANLIKE FIBER SYSTEM PASSING FROM THE LATERAL GENICULATE BODY OF THE THALAMUS TO THE VISUAL CORTEX.
Term
BINOCULAR VISION
Definition
TWO-EYED VISION THAT PROVIDES FOR DEPTH PERCEPTION.
Term
HEMIANOPIA
Definition
THE LOSS OF THE SAME SIDE OF VISUAL FIELD OF BOTH EYES, RESULTING FROM DRAINAGE TO THE VISUAL CORTEX ON ONE SIDE; CAN'T SEE PAST THE MIDDLE TO EITHER THE RIGHT OR LEFT SIDE.
Term
VISUAL CORTEX
Definition

THE VISUAL CORTEX OF THE BRAIN IS THE PART OF THE CEREBRAL CORTEX RESPONSIBLE FOR VISUAL INFORMATION LOCATED IN THE OCCIPITAL LOBE, IN THE BACK OF THE BRAIN.

Term
CONVERGENCE
Definition
THE REFLEXIVE MOVEMENT OF THE EYES MEDIALLY WHEN WE VIEW CLOSE OBJECTS.
Term
PHOTOPUPILLARY REFLEX
Definition
IMMEDIATE CONSTRICTION OF THE PUPILS WHEN THE EYE IS SUDDENLY EXPOSED TO BRIGHTER LIGHT. PREVENTS EXCESSIVE BRIGHT LIGHT FROM DAMAGING PHOTORECEPTORS.
Term
ACCOMODATION PUPILLARY REFLEX
Definition
CONSTRICTION OF THE PUPILS REFLEXIVELY WHEN CLOSE OBJECTS ARE VIEWED; PROVIDES FOR MORE ACUTE VISION.
Term
EMMETROPIA
Definition
THE EYE THAT FOCUSES IMAGES CORRECTLY ON THE RETINA-"HARMONIOUS VISION".
Term
MYOPIA
Definition
NEARSIGHTEDNESS; DISTANT OBJECTS APPEAR BLURRY.
Term
HYPEROPIA
Definition
FARSIGHTEDNESS; SEE DISTANT OBJECTS; RESULTS FROM AN EYEBALL THAT IS TOO SHORT.
Term
ASTIGMATISM
Definition
BLURY IMAGES OCCUR BECAUSE POINTS OF LIGHT ARE FOCUSED NOT AS POINTS ON THE RETINA, BUT AS LINES.
Supporting users have an ad free experience!