the cerebral cortex 3.2

Question 1

how is the brain divided

Answer 1

divided into three interconnected layers
- the central core (medulla and cerebrum)
- the limbic system
- the cerebral cortex (outer layer of cerebrum)

Question 2

cerebral cortex

Answer 2

the largest and most complex part of the brain and is the centre of conscious thought, it recalls memories and alters behaviour in light of experience

Question 3

where are the localisation of brain functions

Answer 3

the cerebral cortex

Question 4

the three areas of localisation of brain functions

Answer 4

sensory area, association area and motor area

Question 5

sensory area of the localisation of brain functions

Answer 5

receives information as sensory impulses from body’s receptors and send them to associated areas

Question 6

association area of the localisation of brain functions

Answer 6

analyse and interpret impulses and ‘take decisions’ if necessary, there are association areas involved with language, personality, imagination and intelligence

Question 7

motor area of the localisation of brain functions

Answer 7

received info from association areas and send motor impulses to effectors in skeletal muscles to bring about a response

Question 8

how does the brain process information

Answer 8

information from one side of the body is processed in the opposite side of the cerebrum, the left cerebral hemisphere deals with information from the right visual field and controls the right side of the body and vice versa

Question 9

how does information transfer between the cerebral hemispheres

Answer 9

through the corpus callosum which is a large bundle of nerve fibres connecting the two hemispheres