click below
click below
Normal Size Small Size show me how
chapter 6 voc
Term | Definition |
---|---|
centtral nervous system | the brain and spinal cord |
spinal cord | nerves that run up and down the length of the back and transmit most messages betwwen the body and the brain |
peripheral nervous system | |
neurotransmitter | the chemicals released by nuerons which determined the rate at which neurons fire |
somatic | part of the peripheral nervous system that controls voluntary movement of skeletal muscles |
automatic nervous | part of the peripheral nervous system thta controls internal biological functions |
hindbrain | part of the brain located at the rear base of the skull that is involved in the basic process of life |
midbrain | small part of the brain above the pons that intergrates sensory information and relays it upward |
forebrain | part of the brain that covers the brain's central core |
lobes | the different regions into which the cerebral cortex is divided |
electroencephalograph | a machine used to recored the electrical activity pf laarge portions of brain |
computerized | an imaging technique used to study the brain to pinpoint injuries and brain detection |
positron emission | imaging technique used to to see which brain areas are being activated while preforming tasks |
magnetic resonance | imaging technique used to study brain structure and activity |
endocrine system | chemical communication system using hormones by which messages are sent through the bloodstream |
hormones | chemical substances that carry messages through body |
pituitary gland | center of control of the endocrine system that secretes large number of hormones |
identical twins | twins who come from one fertilized egg; twins having the same heredity |
genes | basic building blocks of heredity |
fraternal twins | twins who come from two different eggs fertilized by two differernt sperm |