Brain Function Lecture 03

Question 1

How do granular neurons look like and what do they secrete?

Answer 1

1. short axons that act as interneurons

2. glutamate (excitatory) GABA (inhibitory)

Question 2

The first three layers of the cerebral cortex perform what tasks?

Answer 2

1. perform intracortical associated functions

Question 3

What happens in the 4th layer of the cerebral cortex?

Answer 3

1. specific sensory signals terminate

Question 4

What is the thalamocortical system?

Answer 4

1. this system consists of ongoing neural signals between nuclei in the thalamus and neurons in all modular areas of the cortex.

Question 5

What is responsible for the direct connection with the cerebral cortex and specific muscles?

Answer 5

primary motor areas

Question 6

What areas is responsible for detecting specific sensations?

Answer 6

primary sensory areas

Question 7

What area of the brain provides patterns of motor activity?

Answer 7

secondary motor areas

Question 8

What areas analyze the meaning of specific sensory signals?

Answer 8

secondary sensory area

Question 9

The parieto-occipitotemporal association area is responsible for what?

Answer 9

1. analyze spatial coordinates
2. angular gyrus area
3. area to name objects

Question 10

The prefrontal association area is responsible for what?

Answer 10

1. receive preanalyzed sensory information that is necessary for planning effective movement.
2. the thought processes are carried to basal ganglia through the caudate portion.

Question 11

What is Broca’s area responsible for?

Answer 11

1. helps with word formation

2. works closely with wernicke’s area and mostly dominant on the Lt side of brain

Question 12

What is most associated with the Limbic area of the brain?

Answer 12

1. behavior
2. emotions
3. motivation

Question 13

What is Wernicke’s area most well known for?

Answer 13

1. language comprehension

Question 14

What components all come together at Wernicke’s area, in the posterior superior temporal lobe?

Answer 14

1. somatic association area
2. visual association area
3. auditory association area.

Question 15

What are the different cortical neurons?

Answer 15

1. granular (stellate) neurons
2. Fusiform neurons
3. Pyramidal neurons