The document describes the structure and function of the cerebrum, which is the largest part of the brain. It notes that the cerebrum consists of two hemispheres separated by the longitudinal fissure and connected by the corpus callosum. Each hemisphere has an outer layer of gray matter called the cerebral cortex, which is involved in functions that make humans unique like memory, language, and reasoning. The document also describes the four main lobes of the brain and their functions.

1. Brain, part 1 (Cerebrum): page 10

2. Brain, part 1 (Cerebrum): page 10
• Cerebrum: largest and most obvious portion
of the brain

3. Brain, part 1 (Cerebrum): page 10
• Cerebrum: largest and most obvious portion
of the brain
• Two hemispheres separated by the
longitudinal fissure. Connected by a band of
white fibers called the corpus callosum

4. Brain, part 1 (Cerebrum): page 10
• Cerebrum: largest and most obvious portion
of the brain
• Two hemispheres separated by the
longitudinal fissure. Connected by a band of
white fibers called the corpus callosum
• Consists of white matter covered by a thin
layer of gray matter, the cerebral cortex

5. Brain, part 1 (Cerebrum): page 10
• Cerebrum: largest and most obvious portion
of the brain
• Two hemispheres separated by the
longitudinal fissure. Connected by a band of
white fibers called the corpus callosum
• Consists of white matter covered by a thin
layer of gray matter, the cerebral cortex
• Cerebral cortex is what makes us “human”.
Controls memory, language, reasoning,
personality, and movement

6. Brain, part 1 (Cerebrum): page 10
• Cerebrum: largest and most obvious portion of
the brain
• Two hemispheres separated by the longitudinal
fissure. Connected by a band of white fibers
called the corpus callosum
• Consists of white matter covered by a thin layer
of gray matter, the cerebral cortex
• Cerebral cortex is what makes us “human”.
Controls memory, language, reasoning,
personality, and movement
• Surface is wrinkled, with “mountains” called gyri
and “valleys” called sulci

7. Cerebral hemispheres
• Hemispheres are similar in structure, but not
in function.

8. Cerebral hemispheres
• Hemispheres are similar in structure, but not
in function.
• In right handed people, the left hemisphere is
involved in reasoning, language, and math.
The right hemisphere is involved in
movement, emotion, art, and music

9. Cerebral hemispheres
• Hemispheres are similar in structure, but not
in function.
• In right handed people, the left hemisphere is
involved in reasoning, language, and math.
The right hemisphere is involved in
movement, emotion, art, and music
• In left handed people these sides are reversed

10. Cerebral hemispheres
• Hemispheres are similar in structure, but not
in function.
• In right handed people, the left hemisphere is
involved in reasoning, language, and math.
The right hemisphere is involved in
movement, emotion, art, and music
• In left handed people these sides are reversed
• Rarely, neither side dominates, which can lead
to learning disabilities

11. Lobes
1. Frontal Lobe: Personality, behavior, emotion,
intellectual functions. The precentralgyrus is
along the posterior edge and contains the
somatomotor cortex, which allows conscious
control of the skeletal muscles. Contains
Broca’s area, which controls muscles used for
speech.

12. 2. Parietal Lobe: Sensation. The postcentralgyrus
is along the anterior edge and contains the
somatosensory cortex, which receives sensory
input from receptors in the skin and muscles.
Also contains gustatory cortex, which receives
input from the taste buds

13. 3. Occipital Lobe: Vision. Receives signals from
the eye and analyzes them

14. 4. Temporal Lobe: Hearing, smell. Receives
auditory input from the ear and analyzes it.
Contains olfactory cortex, which receives input
from smell receptors

15. 5. Limbic lobe: Deep to the other lobes. Plays a
role in emotions, including pain, pleasure,
affection, and anger. Controls involuntary
behavior related to survival. Also involved in
memory