lecture 3- Brain Function Flashcards Preview

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Flashcards in lecture 3- Brain Function Deck (26):
1

describe granular (stellate) cortical neurons

short axons, interneurons, both excitatory (glutamate) and inhibitory (GABA)

2

describe fusiform cortical neurons

smaller output neurons

3

describe pyramidal cortical neurons

large output neurons

4

describe the 4th cerebral cortex layer

termination of most incoming specific sensory signals

5

describe the 5th and 6th cerebral cortical layers

origin of most output signals, fibers to thalamus from 6

6

describe the 1st, 2nd, and 3rd cerebral cortex layers

intracortical association functions

7

describe primary motor cortical areas

direction connections with specific muscles

8

describe primary sensory cortical areas

detects specific sensations

9

describe secondary motor cortical areas

provide patterns of motor activity

10

describe secondary sensory cortical areas

analyze meanings of specific sensory signals

11

define association areas

receive and analyze signals simultaneously from multiple motor and sensory cortices

12

what are the sub-areas of the parieto-occipitotemporal association area

area for analysis of spatial coordinates, wernicke's area, angular gyrus area, area for naming objects

13

describe the prefrontal association area

receives pro analyzes sensory info necessary for planning effective movements, output passes through caudate portion of basal ganglia,
carries out "thought" processes in the mind

14

describes Broca's area

provides circuitry for word formation, works closely with wernicke's area

15

what is the limbic association area concerned with

behavior, emotions and motivation

16

describe wernicke's area

involved in language comprehension,
area where somatic, visual and auditory association areas all meet one another in the posterior part of the superior temporal lobe

17

where is the occipital portion of facial recognition area located

next to visual cortex

18

what is the temporal portion of the facial recognition area associated with

the limbic system

19

extensive damage to what area causes prosopagnosia

facial recognition area

20

what does cutting the corpus callosum result in

blocking of transfer of info from wernicke's area to non dominant motor cortex,
prevention of the transfer of somatic and visual info from right hemisphere into wernicke's area,
results in 2 entirely separate conscious portions of the brain

21

define declarative memory

memory of various details of an integrated though

22

what type of memories might be included in declarative memory

memory of: surroundings, time relationships, causes and meanings of experience, deduction as a result of experience

23

define reflexive (skill) memory

associated with motor activities

24

define short-term memory

exemplified by memory of a telephone number: lasts only as long as a person thinks of numbers or facts

25

intermediate long-term memory

lasts minutes to weeks; may become long term memory if memory traces are activated enough

26

what structural changes occur as a result of long-term memory formation

increase in vesicle release sites for secretion of transmitter substance, increase in number of transmitter vesicles released, increase in number of presynaptic terminals, changes in structures of the dendritic spines