Lecture 10- Brain

What does the cerebrum do?

Largest part of the brain (~83%)

• Conscious behaviors, sensations,

language, thought, emotions,

learning, memory, etc.

• 2 sides: R & L cerebral hemispheres

What are sulci?

Fissures/ grooves in cerebrum that separate lobes of cerebrum. (frontal, parietal, occipital, and temporal)

What are gyri?

Folds of the brain in cerebrum

Certain functional areas are

associated with specific gyri of

the brain?

1. Sensory areas receive

information

2. Motor areas control voluntary

movements

3. Association areas integrate

complex functions

Precentral gyrus?

• Location of the primary

motor cortex

• Initiates voluntary

movements

Postcentral gyrus?

• Location of the primary

somatosensory cortex

• Processes conscious

somatic sensations