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46 Cards in this Set
- Front
- Back
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What is the order that neurons work in?
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sensory-->interneurons-->motor neurons
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Where are reflexes processed in?
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spinal cord, NOT BRAIN!!!
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what is the order of the flow of information?
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1)dendrites
2)soma 3)axon 4)terminal buttons |
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What do the dendrites do? and how many branches are there?
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they receive info
1000's |
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what is the soma and what is stored there?
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main body of the cell and stores genetic material
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what does the axon do?
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1)transmits information
2)action potential travels here to other neurons 3)has terminal buttons on end that relase chemicals |
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The tiny gap between the termainal buttons of one neuron and the dendrited of the next one is ?
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the synapse
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the tiny charge between inside,outside of neuron
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resting potential
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change in potential primarily because of messages from other neurons is the?
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action potential
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during excitatory messages cells lose?
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negative charge
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what type of messages cell's become more negatively charged?
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inhibitory
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What happens to a neuron if it is myelinated?
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the speed increases
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when action potential reaches the end of the axon, it triggers vesicles in the terminal buttons to release chemicals called_____?
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neurotransmitters
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A drug that mimics the action of a neurotransmitter is an?
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agonist
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a drug that blocks the action of a neurotransmitter is an?
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antagonist
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The central nervous system consists of the ?
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brain and spinal cord
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What are the two parts of the peripheral? and what are their functions?
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somatic-controls voluntary muscles
autonomic-controls involuntary muscles |
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If a emergency occurs the ______ handles it?
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sympathetic
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after an emergency the _____ calms the body down?
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parasympathetic
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how do you study brain damage?
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case studies
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a EEG monitors?
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electrical activity in the brain
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a CT & MRI looks at?
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structures
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a PET pays attention to ____?
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behaviors
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Where is the hindbrain located at?
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the back of the brain
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what is the main function of the hindbrain?
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life support
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This part of the brain is the "relay stations" and coordinates sensory information
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midbrain
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this part of the brain is used for HIGHER mental processes?
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forebrain
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the hypothalamus regulates?
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endocrine system
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The frontal lobe is in charge of?
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planning, decision making, memory, and personality
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the parietal is in charge of?
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processing sensations of touch, temperature, pain
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the temporal lobes are in charge of ?
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auditory, speech, and language
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the occiptal lobes are in charge of?
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vision
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What side of the body does the left side of the brain deal with?
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right
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which side of the brain does the talking?
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left
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what side of the brain does spatial taks and has emotions?
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right
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the communication system that uses bloodstream instead of neurons, and deals with hormones is?
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endocrine system
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hormones have ____,_____-lasting messages, and cordinates with the ____system.
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slow, longer
nervous |
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Hormones effect two things?
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1)whether sex organs develop prenatally
2)brain development |
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are gender differences small or big?
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SMALL!
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traits are inherited through?
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genes
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Features selected by nature because they increase odds of survival are?
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adaptations
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Strips of DNA are? who they come from?
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chromosomes
half from mom and half from dad |
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Segments of chromosomes that influence particular characteristics are?
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genes
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Can recessive genes mask dominant ones?
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no!!! dominant genes may mask recessive ones
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can genes mutate?
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yes!
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The final product of a person is influenced by two things?
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hereidity AND environment
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