M1L1 Vocabulary Flashcards
(8 cards)
Brain
organ in the nervous system that sends and receives messages from the other body organs
Central nervous system
part of the nervous system made up of the brain and spinal cord
Instinct
an inherited behavior, one that is not learned but is done automatically
Peripheral nervous system
part of the nervous system that is not part of the central nervous system and receives sensory information from cells in the body
Reflection
the bouncing of light waves off a surface
Reflex
an action or movement of the body that happens automatically as a reaction to something
Refraction
the bending of light as it passes from one transparent material into another
Sensory organ
organs such as the skin, eyes, ears, nose, and tongue that gather information from outside the body