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43 Cards in this Set
- Front
- Back
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What is included in the CNS
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the brain and spinal chord
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What is included inside of the PNS
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anything outside of the brain and spinal chord
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What does the somatic nervous system do
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it takes a message from the sensory receptors to the brain and spinal chord and from the CNS to muscles
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Controls the heart, intestines, and other organs
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Autonomic nervous system
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What is the bell-Meagendia law
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entering dorsal roots carry sensory info exciting ventral roots carry motor info
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a cluster of nerves outside the spina chord
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dorsal root ganglia
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The central chord packed with cell bodies and dendrites
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grey matter
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composed of meylinated fibers
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white matter
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What is the sympathetic nervous system
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prepares organs for work consists of two pairs of ganglia sitting to the left and right of the spinal chord it is connected by axons to the spinal chord they act together
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What is the parasympathetic nervous system
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facilitates non-emergency responces consists of the cranial nerves they oppose each other
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What are the general parts of the brain
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the hind brain, mid brain, and forebrain
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What is the medulla
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above the spinal chord controls vitals
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What are cranial nerves
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control sensations of the head, muscle movements and parasympathetic output to organs
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on top of the medulla the location where axons from each half of the brain cross so the left hemisphere controls muscles on the right and the right controls muscles on the left
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pons
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What is the retivular formation
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has decending and ascending portions. The descending portion controls motor areas of the spinal chord ascending sends output to much of cerebral cortex
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raphe system
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sends axons to much of the rorebrain
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What is the cerebellum
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a large hind brain structure with a great many deep folds controls movement and balance, timing, and sensory timing
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What is the roof of the brain
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the tectum
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control primary vision and hearing
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superior and inferior colliculus
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What is the intermediate level of the midbrain covers the floor
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tegmentum
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What is the substancia niagra
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creates a dopamine containing pathway
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a border around the brainstem, control emotions
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limbic system
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What is in the limbic system
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the olfactory bulb, hippocampus, amygdald, and cingulate gyrus
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Whe thalmus that hypothalmus together is the
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diencephalon
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the rest of the forbrain besides the thalmus and hypothalmus is the
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telencephalon
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Where and what is the thalmus
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it is at the center of the brain and it processes most of the sensory info that goes to the brain and then sends it to the cortex
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What is unique about the olfactory bulb
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its info does not go through the thalmus it goes straight to the cortex
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Whaere and what is the Hypothalmus
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ventral to the thalmus
It talks to the pituitary gland through hypothalmic hormones |
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What and where is the pituitary gland
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at the base of the hypothalmus it synthisizes and secretes hormones
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What and where is the basal ganglia
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the sides of the thalmus it includes the caudate nucleus, putamen, and globes palidus they exchange info between the cortex
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What does huntingtons and parkensons disease do
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deteriorates the basal ganglia
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What is the basal forebrain
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recieves impulses from the hypothalmus and basal ganglia and secretes ACH it is located infront of the ons
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What doea the Hippo campus do
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stores new memory
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What is the central canal
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cavity filled with CSF in the spinal chord
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What are ventricles
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cavities of CSF in the brain
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What is the cerebral cortex
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a cellular layer on the outer surface of the cerebral hemespheres, grey matter
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What is the corpus callosum
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the area of split between the right and left sides of the brain
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What is the commisure
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a pathway across the midline of the brain
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As the forebrain increases what decreases
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the midbrain
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What are laminae
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layers of cell bodies parallel to the surface of the cortex and seperate from each other by layers of fibers
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Where is the parietal lobe
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between the ocipital lobe and the cental sulcus which is the deepest grove on the surface of the cortex
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What is the post central gyrus
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posterior to the central
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Whate is the temporal lobe
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lateral portion of each hemesphere near the temporal auditory
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