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30 Cards in this Set
- Front
- Back
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hormone |
Chemicals that regualte various bodily functions |
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dendrite |
where messages from other cells at synapses are transmitted to the cell body |
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spinal reflex |
unlearned response to stimulus |
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synapse cleft |
gap between axon terminal and dendrite |
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neurotransmitters |
chemicals that alter neuron activity |
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synapse |
neuron to neuron message transaction |
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axon |
carries message to axon terminal |
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axon terminal |
recieves message from axon |
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receptor sites |
recieving areas on dendrites |
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cerebrum |
Associated with thought and action |
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cell body |
contains nucleus of cell, recieves messages and sends down axon |
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hemisphere |
half of your brain |
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Peripheral Nervous System |
nerve linkages to mucles and glands. Somatic and autonomic systems |
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Central Nervous System |
Brain and spinal chord |
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motor nerurons |
effects glands, muscles, and organs. |
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sensory neurons |
Convert outside stimuli into internal electrical impulses |
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hypothyroidism |
underactive thryroid, produces too little thyroxin. Obesity, low energy |
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hyperthyroidism |
overactive thyroid, produces too much thyroxin. Thin, tense, nervous. |
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hyperglyecimia |
Excess sugar, too little insulin. Insulin shots. Pancreas |
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hypoglycemia |
too little sugar. Need food. Too much insulin. Pancreas |
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Why study the brain? |
??? |
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PMS Biological? |
Pms is biological because its caused by various levels of nerurotransmitters and hormormones from the regulation of menstrural cycle |
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Parasympathetic |
Involved in digestion. Directly effected by sympathetic system |
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Sympathetic system |
Involves fear and anxiety. Lowers digestion |
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efferent |
Conducting outward or away from soemthing. Carry away from CNS to PNS |
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afferent |
Carry from CNS to PNS |
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Somatic Nervous System |
Transmits sensory messages to the central nervous system |
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Autonomic Nervous System |
Regulates glands and muscles of internal organs [paraspmpathetic aand sympathetic |
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Parasympathetic system |
Calming system, regulates heartbeat,respiration, and replenish body's reserves of energy. |
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Sympathetic system |
Prepares body for flight or fight. Active during emotional responses. Spends body's reserves |
