Flashcards
Nervous Systems I
Cards in this deck (31)
- 1What is the neural tubetube w/ lumen and neuroblast-containing walls
- 2What develops within the neural tube?Entire CNS
- 3Structure of brainThree 1' vesicles
Fore/mid/hindbrain
Divide into five 2' vesicles - 4Ventricles areregions containing CSF
- 5Lower vertebrae brains have (3)large area devoted to olfaction
^ Size of diencephalon
^ size of cerebrum - 6Mammalian brains have (4)Folding of cortex
Development of 6 layered neocortex
Enlargement of cerebellum
Reduction of the olfactory system - 7Human brain has (3)1' visual sensory cortex
somatic sensory cortex
Enlargement of cortical areas w/ unique human features - 8Where do cranial nerves emerge fromBrainstem
- 9what is white mattermyelinated axons
- 10corpus callosum is __ that ___WM
Connects hemispheres of the brain - 11Internal capsule containsmany tracts
- 12What are tracts?Bundles of myeliniated axons connecting nuclei
(WM) - 13ExampleCorticospinal tract = starts in cortex down to spine
- 14fascicles meansbundles
- 15Cortex is made out ofGray matter
- 16Gray matter is comprised ofNeuron Cell bodies organised into nuclei or laminae (layers of cortex)
- 17name of cell bodies outside of brainganglia
- 18Diagram of the brain (5)Cerebellum
midbrain
thalamus
cortex
cc - 19How is swimming co-ordinated in fish?CPG on each side of each spinal cord segment
Each half of spinal cord co-ordinates L and R side - 20What controls the CPG?Locomotor command centres in brainstem
- 21What controls brainstem LCC?Basal ganglia in cerebral hemisphere
- 22Which cell types are key neurons in startle response?M-neurons
- 23How dey do dat?Most fish have large M-neuron either side of brainstem
Vibrations detected via sensory input from lat. lines (viii)
Axon crosses midline, extends throughout spinal cord
Collaterals contact inter/motorneurons at every spinal level
Unilateral muscle contraction
Also inhibits other side of spinal cord by releasing exc. neurot onto inhib neuron - 24Vestibulocerebrum involved inbalance
- 25spinocerebrum development whenbody raised off ground
- 26neocerebrum isconnected to cerebral cortex for motor co-ordination
- 27MOA spinal reflexSensory neuron brings info into spinal cord via dorsal root ganglion
Synapse in dorsal horn (GM)
Interneuron synapse to motor neurons in ventral horn
Release neurot onto skeletal muscle - 28Supra-spinal control ascendingSensory
run from spinal cord to sensory cortex in cerebral hemisphere - 29DescendingMotor
Exert control over motor neurons in spinal cord - 303 major mammalian pathwaysCorticostriate pathway (basal ganglia)
Cortico-cerebellar pathway
Corticospinal tract - 31What influences reptiles/amphibians?Cerebral cortex + spinal cord
Evolving basal ganglia, the cortex, the brainstem
Cerebellum and spinal cord
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- User has deleted their subject information Flashcards on Nervous Systems I, created by Deleted user on 07/05/2018.
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- Created by J yadonknow · Apr 12, 2018
- Copied by J yadonknow · May 7, 2018
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