Question

Choose the pair which is incorrectly matched:

• A. Meninges: dura mater, arachnoid sheet and pia mater
• B. Corpus callosum: relays information between cerebral cortex and cerebellum
• C. Frontal lobe: complex thinking, decision making, personality
• D. Thalamus: communication centre for sensory information.

Answer 1

The correct option is B Corpus callosum: relays information between cerebral cortex and cerebellum

Meninges is the tough tissue present beneath the skull. The outer most thick double layer is dura mater followed by arachnoid mater which is a sheet of delicate connective tissue. Lastly, pia mater is the inner most moderately togh layer close to the brain.

Pons: relays information between cerebral cortex and cerebellum.

Corpus callosum: 10 cm long bundles of densely packed nerve fibres that connect left and right cerebral hemispheres.

The cerebral cortex consists of frontal, parietal, temporal and occipital lobes. The frontal lobe determines personality, decision making, complex thinking, meaningful speech and cognitive behaviour.

Thalamus is the key communication between the senses and the cortex that receives majority of the incoming signals, their source, evaluates their importance and integrates before passing them on to the cerebrum.