AP Psychology "The Anatomy of the Brain"

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All about the brain

Hindbrain

It is the oldest part of our brain and is located deep within our head and on top of our spinal cord, it controls most of our most basic functions. There are 3 parts to the hindbrain the medulla oblongata, the pons, and the cerebelleum.

Medulla Oblongata "medulla"

It helps control our heart rate, blood pressure and breathing. It is located directing above our spinal cord.

Pons

It is located just above the medulla and it helps coordinate the hindbrain with the midbrain and forebrain. It is also involved in facial expressions.

Cerebellum

It is located at the bottom rear or our brain and looks like a little version of our whole brain.It helps us coordinate our balance and fine muscle movements.

Midbrain

Located in the middle of our brain, it helps coordinate sensory information with simple movements; and contains the reticular formation.

Reticular formation

Controls arousal. (Not sexual arousal, but arousal from sleep)

Forebrain

The brain's largest division and its most forward part. Conatins thalamus and limbic system.

Thalamus

It's the operator/switchboard of our brain. Any sensory information that comes into out bodies (sight, hearing, touch and taste) go to here first and it sends the information to the right parts of our brain to get processed (except for smell).

Limbic System

This is sometimes called the emotional control center of our brainbecause it contains structures that help us feel our most raw emotions. Is made up of hypothalamus, hippocampus, and amygdala.

Hypothalamus "Hypothermia"

It is the size of a pea, It is involved in controlling the following activities: thirst, hunger, body temperature, sexual arousal and the endocrine system.

Hippocampus "That one time at hippo camp..."

The hippocampus is involved in memory processing. It does not store info but rather helps aids us in memorization.

Amygdala "Angry Amy"

This, handles some memory processing, but for the most part handles basic emotions like anger and jealousy.

Cerebral cortex

the outermost layer of the brain, visible to the naked eye and divided into two hemispheres, recieves sensory info and transmits motor info. It consists of four lobes the occipital, temporal, parietal, and frontal.

Corpus callosum

Connects the two hemispheres together and allows them to communicate.

Occipital lobe

Processes vision.

Temporal lobe

Processes sound.

Parietal lobe

Responsibe for feeling sensations.

Frontal lobe

Controls speech, learning, thinking, judgement making, abstract thought, reasoning, and skeletal movement.

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