| A | B |
|---|
| neurotransmitters | chemical messages that are transmitted through the neuron |
| synapse | the space between neurons |
| fraternal twins | developed from 2 fertilized eggs and their genes are not more similar than those of brothers/sisters |
| somatic nervous system | part of the nervous system that controls activities |
| pituitary gland | acts as the master gland of the body, controlling the output of hormones |
| hormones | produced by endocrine glands and are distributed by the blood and other bodily fluids |
| dendrites | receives messages from other neurons and sends them to the cell body |
| autonomic nervous system | part of the nervous system that controls involuntary activities |
| hindbrain | located at the rear base of the skull and is involved in the basic processes of life |
| identical twins | developed from a single fertilized egg and share the same genes |
| sympathetic nervous system | expends energy, helps people cope during emergencies |
| hypothalamus | controls the functions of hunger, thirst, and sexual behavior; monitors and corrects any imbalances |
| forebrain | covers the brain's central core, our higher thinking processes |
| corpus collosum | the 2 hemispheres of the brain communicate through here |
| PET, CAT, MRI | scans that psychobiologists use to study the brain |
| occiptal lobe | visual signals |
| parietal love | body sensations |
| temporal love | hearing, memory, emotion, speaking |
| frontal lobe | organization, planning, creative thinking |
| left hemisphere | controls the movements of the right side of the body |
| testosterone | sex hormone responsible for the growth of male sex characteristics |
| parasympathetic nervous system | conserves energy; enhances the body's ability to recover from strenuous activity |
| neurons | long, thin cells of nerve tissue along which messages travel to and from the brain |
| central nervous system | brain and spinal cord |
| heredity | the genetic transmission of characteristics from parents to their offspring |
| nurture | environmental factors |
