| Term | Definition |
|---|
| sodium potassium pump | pumps 3 positive sodium ions out of the cell for every 2 potassium ions it pumps in leaving the inside of the cell less positive than the outside |
| depolarization | when the inside of the cell reaches a charge that is nearly equal to that of the outside of the cell |
| action potential | if the impulse is strong enough so much sodium rushes in the inside of the cell becomes positive compared to the outside |
| synapse | the space between the 2 neurons |
| neurosecretory vesicles | the end of each axon that contain neurotransmitters |
| neurotransmitters | the chemicals that travel across the synapse to carry a nerve impulse from the sendingnneuron to the receiving neuron |
| addiction | when the body becomes addicted to a drug and only produces dopamine when that drug is taken. results in severe deppression when drug is not available |
| cerebrum | twisted mass of grey matter that controls thought, memory and senses. helps learn complex behaviors and the most recent part of the brain to evolve |
| cerebellum | controls balance and coordination |
| frontal lobe | division of the cerebrum that is associated with reasoning, planning, parts of speech, movement, emotions, and problem solving |
| paretal lobe | division of the cerebrum that is associated with movement, orintation, recognition, perception of stimuli |
| occipital lobe | division of cerebrum that is associated with visual processing |
| temporal lobe | division of the cerebrum that is associated with perception and recognition of audiotory stimuli, memory, and speech |
| eye cups | planarians have these clusters of cells that detect light intensity and direction |
| compound eyes | each eye consists of several thousands light detectors |
| ommatidia | light detectors that have their own lens |
| single-lens eye | small opening allows light to enter |
| cornea | transparent part of the sclera at the front of the eye where light comes through |
| iris C.J. Lew | gives eye color and changes size to regulate the amount of light that enters the pupil |
Combine with other sets
Share on Facebook
Share on MySpace